TOP-12 best models in terms of reliability

When choosing gadgets, many pay attention not only to the characteristics, but also to the manufacturer, which is why the latter try to earn a good reputation for themselves. Samsung guarantees a high level of both quality and service, which is why many prefer smartphones from this Korean manufacturer. We present to your attention a list of popular models for 2021: their advantages and disadvantages are divided into groups for your convenience, in addition, we have compiled a small reminder for you on choosing a gadget.

Rating of the best Samsung smartphones in 2021

What should be considered when choosing a smartphone from the manufacturer Samsung?

In order not to make a mistake with the choice, you need to figure out what technologies Samsung uses in different price categories. After all, at approximately the same price, models can radically differ.

Screen.

In the budget class, Samsung uses TFT matrices for its products, despite the fact that many competitors have switched to IPS. In the premium segment, Super Amoled and Dynamic Amoled technologies are used, which makes Samsung the undisputed leader of the niche.

CPU.

Exynos chips are always inferior to Snapdragon regardless of the class. If it is possible to purchase a version on the latest processor, you can expect a higher level of performance and power consumption.

Camera.

In the premium class, Samsung uses Sony IMX555 sensors and its proprietary matrices, including the Samsung S5K2LD, S5K2LA and S5KGW2. The latter is considered the best, but the standard is ISOCELL Plus CMOS, which only Note 20 is equipped with. In fairness, it should be noted that all premium flagships support 8K video, and even the middle class uses quad cameras on proprietary chips that support 4K.

Offline work.

The most capacious batteries are equipped with M-class models. The battery capacity is from 5000 to 7000 mAh.

In each classroom, Samsung uses different processors, screens, and cameras. Completing smartphones with their own components does not always have a positive effect on the characteristics of the company’s product. As practice shows, models released on the basis of Snapdragon processors are more advanced.

How to choose a samsung smartphone?

Before you buy, study the criteria:

• Large memory important for heavy 3D toys, simultaneous work in several applications and dozens of tabs open in the browser. The more free memory, the faster the response. Installing an additional memory card is a big plus.
• AMOLED screens boast a wider color gamut and natural colors, they are better in terms of power consumption, but their main drawback is high PWM. TFT screens do not flicker at all, but are dimmer.
• Second Wi-Fi support range (802.11ac) is justified for the city, where numerous Wi-Fi routers interfere in apartment buildings.
• With modern gadgets many modules for photographybut do you really need them? Each additional camera increases the cost of the device.

Check out the range provided.

Budget models up to 100$.

The Korean manufacturer sells the most smartphones in the world, and not all devices sold are top-end Galaxy S or Note.

Inexpensive new Galaxy A and M series seriously compete with budget phones from other brands.

Rating of models up to 100$ according to customer reviews and ratings.

Samsung Galaxy A10

Inexpensive, productive and stylish model Samsung Galaxy A10 can be safely attributed to the universal mobile devices for communication, work and leisure.

The phone is equipped with a capacious rechargeable battery, a high-performance Exynos seventh series processor, enough RAM resource to perform most tasks.

With built-in permanent memory, users can save their personal data.

Storage can be expanded with a microSD card up to 512 GB. TFT-screen, two cameras, simultaneous operation of two SIM-cards, Wi-Fi and Bluetooth modules expand the functionality of the smartphone.

Specifications:

• display — TFT, 6.2″, 1520×720;
• main / front camera — 13 MP / 5 MP;
• processor (CPU) — Samsung Exynos 7884;
• graphics (GPU) — Mali-G71 MP2;
• built-in memory (ROM) — 32 GB;
• random access memory (RAM) — 2 GB;
• battery capacity — 3400 mAh;
• dimensions (W × H × T) — 75.6 × 155.6 × 7.9 mm;
• weight — 168 g.

Advantages

• compactness with a large screen;
• decent camera;
• long battery life;
• high speed of work;
• a separate slot for a memory card;
• affordable cost.

Flaws

• lack of an electronic compass;
• glass Gorilla Glass of the third version;
• not enough RAM.

Samsung Galaxy M11

A budget phone with a large 6.4-inch screen will please users with a bright detailed picture, good performance and pleasant appearance.

The Samsung Galaxy M11 has a durable plastic body with an elegant color scheme.

It supports 4G (LTE) networks, the simultaneous operation of two Nano-format SIM cards at once.

If necessary, the internal memory of the device can be expanded with a card up to 512 GB.

Also, the model is equipped with a light sensor, an accelerometer, a proximity sensor, and other equipment for comfortable and convenient work in various conditions.

Specifications:

• display — TFT, 6.4″, 1560×720;
• main / front camera — 13, 2, 5 MP / 8 MP;
• CPU — Qualcomm Snapdragon 450;
• GPU — Adreno 506;
• ROM — 32 GB;
• RAM — 3 GB;
• battery capacity — 5000 mAh;
• dimensions (W × H × T) — 76.3 × 161.4 × 9 mm;
• weight — 197 g.

Advantages

• democratic price;
• fresh Android 10;
• the presence of NFC, an access point and other functions, like older models;
• bright saturated display;
• quick unlock sensor on the back cover.

Flaws

• budget package;
• small viewing angles;
• no notification indicator;
• decent weight.

Samsung Galaxy A11

It operates on the basis of the modern Android 10 operating system, known for its flexibility of settings, high speed and ease of use.

The hardware of the Galaxy A11 is based on a powerful octa-core processor with a clock speed of 1.8 GHz.

RAM memory and built-in storage support fast operation and the ability to store large amounts of data.

If desired, the total memory can be increased via a microSD card up to 512 GB.

Smartphone Samsung Galaxy A11 supports simultaneous operation of two Nano-SIM cards and is equipped with 2G, 3G, 4G (LTE) communication modules.

Specifications:

• display — TFT, 6.4″, 1560×720;
• main / front camera — 13, 2, 5 MP / 8 MP;
• CPU — Qualcomm Snapdragon 450;
• GPU — Adreno 506;
• ROM — 32 GB;
• RAM — 2 GB;
• battery capacity — 4000 mAh;
• dimensions (W × H × T) — 76.3 × 161.4 × 8 mm;
• weight — 177 g.

Advantages

• capacious battery;
• NFC in the budget model;
• large display;
• expandable internal memory;
• fast charging option.

Flaws

• lack of camera stabilization;
• not the highest performance;
• mediocre cameras.

A real long-liver M20

According to customer reviews on Yandex Market, the Galaxy M20 phone has proven itself from the best side. Mainly because of the 5000 mAh battery capacity. Excellent battery life even when listening to music, watching videos and making frequent calls.

Samsung M20 smartphones, according to manufacturers, can play audio files for 101 hours in a row.

Samsung Galaxy M20
Main characteristics of the M20 model:

• Processor: 6-core Exynos 7 Octa 7885;
• RAM / built-in memory: 3gb / 32gb in the basic version
• SIM cards/miscrosd: 2 nanosim/ up to 512 gb;
• Display Diagonal: 6.3″;
• Resolution: 2340×1080;
• Battery capacity 5000 mAh;
• Main camera: 13mp + 5mp;
• front camera: 8mp;
• NFC is;
• Price from in the basic version.

The logical continuation of the «eight» in S9

Deciding which Samsung smartphone to buy is not easy. Which processor is more suitable for specific tasks, whether the camera will cope with the required work — all these are important characteristics. A large assortment makes it difficult to choose even among the flagships. Samsung Galaxy S9 and S9 plus are smartphones with high-quality graphics, metal body and protected glass. They are equipped with several options of internal memory from 64 to 256 GB, have an excellent camera and an outstanding premium design.

Samsung Galaxy S9

Main parameters of Galaxy S9:

• SIM cards: 2 nanoSIM or 1 nanoSIM + microSD up to 400Gb;
• Body material: aluminum, glass;
• Display Diagonal: 5.8″;
• Resolution: 2960×1440 MP;
• Battery capacity: 3000 mAh;
• Processor: 8-core Exynos 9810 or Qualcomm Snapdragon 845 (in the US, Canada, China, Japan, Latin America);
• RAM / built-in memory: 4Gb / 64 Gb;
• Main camera: 12 MP;
• Front camera: 8 MP;
• NFC is;
• Price from .

M30S — the owner of a powerful battery

The older brother of the previous rating model is the Galaxy M30. It has excellent autonomy, but outdated characteristics have slightly spoiled the overall impression of the smartphone. Samsung Corporation decided to quickly fix the mistakes and performed some «restyling», introducing the M30S to the market. Today it is the best representative of the M-series, although its main trump card, as before, is a powerful battery capable of long work without recharging.

Galaxy M30

The main characteristics of the M30S model:

• SIM cards/miscrosd: 2 nanosim/ up to 512 Gb;
• display diagonal: 6.4″;
• resolution: 2400×1080;
• battery 6000 mAh;
• processor 8-core Exynos 9611;
• RAM / built-in memory: 4gb / 64 gb;
• main camera: 48mp + 8mp + 5mp;
• front camera: 16 MP;
• NFC is;
• price on the Market from .

Galaxy A70 — the flagship of the A series

For those chasing performance, it is better to choose the 70 model. If we compare it, for example, with the “baby” Galaxya 8s, then it really works many times faster. A processor with good performance allows you to compete with toothy competitors. By the way, it is in this model that the proprietary Exynos is no longer used, but Qualcomm Snapdragon 675 — one of the best and most powerful processors for phones in the middle price segment.

Samsung Galaxy A70

The main characteristics of the Galaxy A70.

• Processor: 8-core Qualcomm Snapdragon 675;
• RAM / built-in memory: 6gb / 128gb in the basic version;
• SIM card slots / miscroSD: 2 nano sim / up to 512 Gb;
• display diagonal: 6.7″;
• screen resolution 2400 × 1080 MP;
• battery: 4500 mAh;
• main camera: 32MP + 5MP + 8MP;
• Front camera: 32 MP;
• NFC is;
• Price from in the basic version.

Medium price segment — the best value for money

Note! In addition to the successfully developed course towards state employees, the arbitrator continues to conquer the heights of the middle price segment.

Often, the best phones are presented here in terms of price / quality ratio and they deserve special attention.

The best Samsung models in terms of price and quality.

Samsung Galaxy A51 64GB

The model, enclosed in a case with a spectacular design, is primarily distinguished by cameras, the level of performance of which is comparable to the capabilities of lenses in premium segment phones.

The Samsung Galaxy A51 64GB main camera unit and selfie module consist of five powerful lenses that allow you to get spectacular premium quality shots no matter the shooting conditions.

Landscapes, macro photography, portrait shooting in this Samsung Galaxy A51 64GB model are especially successful thanks to the stabilization system.

You can view finished photographs on a clear and color-rich AMOLED screen.

Specifications:

• display — AMOLED, 6.5 ″, 2400 × 1080;
• main / front camera — 48, 12, 5, 5 MP / 32 MP;
• CPU — Samsung Exynos 9611;
• GPU — Mali-G72 MP3;
• ROM — 64 GB;
• RAM — 4 GB;
• battery capacity — 4000 mAh;
• dimensions (W × H × T) — 73.6 × 158.5 × 7.9 mm;
• weight — 172 g.

Advantages

• good overall performance;
• powerful cameras;
• good autonomy;
• relatively low price.

Flaws

• fuzzy operation of the fingerprint scanner;
• no infrared port;
• not the best headset.

Samsung Galaxy A71 6/128GB

The body of the phone, which combines the most advanced technical capabilities, is made of glass and plastic, this combination looks incredibly impressive.

The large frameless screen of the Samsung Galaxy A71 6/128GB smartphone is made using AMOLED technology.

An octa-core processor and 6 GB of RAM plus an advanced graphics accelerator allow you to run resource-intensive programs and games.

Separately, it is worth noting the highest quality of photos and video content obtained using a four-module main camera and a single front camera.

The fingerprint scanner and face scanner are responsible for security.

Specifications:

• display — AMOLED, 6.7 ″, 2400 × 1080;
• main / front camera — 64, 12, 5, 5 MP / 32 MP;
• CPU — Qualcomm Snapdragon 730;
• GPU — Adreno 618;
• ROM — 128 GB;
• RAM — 6 GB;
• battery capacity — 4500 mAh;
• dimensions (W × H × T) — 76 × 163.6 × 7.7 mm;
• weight — 179 g.

Advantages

• high performance;
• large amount of RAM;
• high-quality AMOLED screen;
• long operating time without recharging;
• fast charger included.

Flaws

• thick side frames;
• decent weight;
• quiet sound of the built-in speakers.

Samsung Galaxy M31

The innovative display manufacturing technology in the Samsung Galaxy M31 made it possible to obtain a bright, detailed and extremely realistic picture without glare and distortion.

Using the device, users will be able to view and listen to various multimedia content, including those obtained using built-in cameras.

Extend the pleasure will help a capacious battery that works without recharging up to 48 hours.

The octa-core Exynos processor and massive RAM module will allow you to do it as quickly and smoothly as possible. And for faster login without entering a password, users can use the face and fingerprint scanner.

Specifications:

• display — AMOLED, 6.4 ″, 2340 × 1080;
• main / front camera — 64, 8, 5, 5 MP / 32 MP;
• CPU — Samsung Exynos 9611;
• GPU — Mali-G72 MP3;
• ROM — 128 GB;
• RAM — 6 GB;
• battery capacity — 6000 mAh;
• dimensions (W × H × T) — 75.1 × 159.2 × 8.9 mm;
• weight — 191 g.

Advantages

• excellent communication quality;
• good screen color reproduction;
• loud external speaker;
• powerful productive iron;
• huge battery capacity.

Flaws

• non-removable battery;
• it is difficult to find a suitable protective glass;
• a lot of pre-installed, often unnecessary, software.

Samsung Galaxy M21

It will provide users with everything necessary for communication, communication, Internet surfing and entertainment, including the passage of current mobile games.

The 2021 model with a classic body color and frameless design has a teardrop-shaped cutout for the front camera, which does not affect the usability of the device.

Professional photo and video cameras allow you to get widescreen shots and videos in Ultra HD 4K format.

The powerful octa-core processor of the Samsung Galaxy M21 guarantees fast performance for these tasks and more.

Specifications:

• display — AMOLED, 6.4 ″, 2340 × 1080;
• main / front camera — 48, 8, 5 MP / 20 MP;
• CPU — Samsung Exynos 9611;
• GPU — Mali-G72 MP3;
• ROM — 64 GB;
• RAM — 4 GB;
• battery capacity — 6000 mAh;
• dimensions (W × H × T) — 75.1 × 159 × 8.9 mm;
• weight — 188 g.

Advantages

• powerful battery;
• big screen;
• fairly thin body;
• fast fingerprint scanner
• many useful settings.

Flaws

• color distortion when viewed at an angle;
• easily soiled and slippery back cover;
• short cable for charging.

Samsung Galaxy A31 64GB

The model, having an impeccable large diagonal AMOLED screen, gives users the opportunity to enjoy a clear and detailed picture in the highest resolution.

High-speed operation is provided by the MediaTek Helio processor with 8 cores, 4 GB of RAM, a powerful Mali graphics accelerator.

The modular 8x digital zoom camera delivers superb image and video quality.

The face and fingerprint scanner is responsible for the safety of user data.

Samsung Pay-enabled payment module Samsung Galaxy A31 64GB enables fast and easy contactless payment.

Specifications:

• display — AMOLED, 6.4 ″, 2400 × 1080;
• main / front camera — 48, 5, 8, 5 MP / 20 MP;
• CPU — MediaTek Helio P65;
• GPU — Mali-G52;
• ROM — 64 GB;
• RAM — 4 GB;
• battery capacity — 5000 mAh;
• dimensions (W × H × T) — 73.1 × 159.3 × 8.6 mm;
• weight — 185 g.

Advantages

• excellent autonomy;
• quality camera;
• many accessories on sale, including covers and protective glasses;
• high build quality and materials.

Flaws

• the camera lacks stabilization;
• the fingerprint scanner does not always work the first time;
• frameless screen provokes involuntary triggering.

Premium segment

Premium models of Samsung smartphones are equipped with powerful chips, advanced cameras, innovative displays.

It is worth noting! For such phones, there are practically no impossible tasks and overly demanding games.

Samsung Galaxy S10 8/128GB

The stylish case is made of glass and metal, which guarantees increased durability of the device without losing its functionality.

Frameless screen phone Samsung Galaxy S10 8/128GB large diagonal and high resolution allows you to comfortably watch movies, TV shows and play games.

The display is protected from scratches, chips and cracks by Corning Gorilla Glass 6.

The device is equipped with a 4G (LTE) communication module, a slot for two SIM cards, a Samsung processor with a clock speed of up to 2.7 GHz, an up-to-date graphics accelerator and a large amount of RAM.

There is also direct/reverse (reverse) wireless charging.

Specifications:

• display — AMOLED, 6.1 ″, 3040 × 1440;
• main / front camera — 16, 12, 12 MP / 10 MP;
• CPU — Samsung Exynos 9820;
• GPU — Mali-G76MP12;
• ROM — 128 GB;
• RAM — 8 GB;
• battery capacity — 3400 mAh;
• dimensions (W × H × T) — 70.4 × 149.9 × 7.8 mm;
• weight — 157 g.

Advantages

• stylish appearance;
• responsive touch screen;
• highest overall performance;
• loud and clear sound from stereo speakers;
• good camera.

Flaws

• slow fingerprint performance
• When you turn on Bluetooth, the Wi-Fi speed is cut at a frequency of 5 GHz.

Samsung Galaxy S10 Lite 6/128GB

The smartphone is the owner of three advanced main cameras with the possibility of wide-angle shooting in any light and no less powerful single front camera.

High-quality still images and videos can be viewed on the 6.7-inch display.

The eight-core processor will allow you to do this with comfort, without brakes and freezes.

Thanks to the productive hardware, the Samsung Galaxy S10 Lite 6/128GB smartphone can easily handle the most resource-intensive applications, including games.

Internal storage can be expanded by installing a micro SD card up to 1000 GB.

Specifications:

• display — AMOLED, 6.7 ″, 2400 × 1080;
• main / front camera — 48, 12, 5 MP / 32 MP;
• CPU — Qualcomm Snapdragon 855;
• GPU — Adreno 640;
• ROM — 128 GB;
• RAM — 6 GB;
• battery capacity — 4500 mAh;
• dimensions (W × H × T) — 75.6 × 162.5 × 8.1 mm;
• weight — 186 g.

Advantages

• compact dimensions;
• bright screen with rich colors;
• fast work of all applications;
• wide-angle camera;
• fast charging.

Flaws

• few accessories in stores;
• lack of 3.5 mm audio output;
• night shooting leaves much to be desired.

Samsung Galaxy Note 10 Lite 6/128GB

In a case made of metal and glass, it has functionality comparable to the capabilities of a modern stationary personal computer.

Tremendous performance is available thanks to the Exynos processor and the advanced Mali graphics accelerator.

The configuration of the Samsung Galaxy Note 10 Lite 6/128GB mobile device allows you to play mobile games with the most complex graphics and run other resource-intensive applications.

The frameless touch display is complemented by an electronic S-Pen with remote control.

Using the accessory, users will be able to draw, write notes, and perform other actions.

Specifications:

• display — AMOLED, 6.7 ″, 2400 × 1080;
• main / front camera — 12, 12, 12 MP / 32 MP;
• CPU — Samsung Exynos 9810;
• GPU — Mali-G72 MP18;
• ROM — 128 GB;
• RAM — 6 GB;
• battery capacity — 4500 mAh;
• dimensions (W × H × T) — 76.1 × 163.7 × 8.7 mm;
• weight — 199 g.

Advantages

• high pixel density of the screen — 400 DPI;
• capacious battery;
• powerful fast charging — 25 W;
• excellent photo quality;
• fast processor;
• excellent communication quality.

Flaws

• high price;
• lack of moisture protection;
• no autofocus on the front camera;
• no stereo speakers.

Samsung Galaxy Note 10 8/256GB

The power of a personal computer, the speed of a game console and the capabilities of a professional camera are combined.

The slim elegant body of the Samsung Galaxy Note 10 8/256GB is made of polished stainless steel and glass.

The hardware is based on a powerful 7nm Samsung proprietary processor and an advanced GPU.

The camera with a double aperture, an ultra-wide module, a sensor with autofocus and image optimization, and a front module are responsible for the ideal quality of photo and video masterpieces.

Specifications:

• display — AMOLED, 6.3 ″, 2280 × 1080;
• main / front camera — 12, 16, 12 MP / 10 MP;
• CPU — Samsung Exynos 9825;
• GPU — Mali-G76 MP12;
• ROM — 256 GB;
• RAM — 8 GB;
• battery capacity — 3500 mAh;
• dimensions (W × H × T) — 71.8 × 151 × 7.9 mm;
• weight — 168 g.

Advantages

• bright and clear frameless display;
• the front camera does not interfere with the use of the device;
• convenient and fast fingerprint scanner in the screen;
• high-quality stereo speakers;
• all camera modules have optical stabilization;
• 8 gigabytes of RAM and 256 permanent memory.

Flaws

• spoiling the appearance of the factory sticker on the rear panel;
• the case during operation noticeably heats up;
• There is no oleophobic coating on the back panel.

Samsung Galaxy S10+ 8/128GB

The case of the Samsung Galaxy S10+ 8/128GB is highly resistant to scratches.

The device will carry a bag or pocket filled with a variety of items without damage.

The functionality of the device is at the level of professional equipment.

Users can view photo and video content on an immersive screen, take premium quality photos, use the device autonomously for a whole day.

Such high performance and energy efficiency are provided by Samsung’s proprietary processor, a powerful video accelerator, and a total amount of RAM, as in a laptop or PC.

Specifications:

• display — AMOLED, 6.4 ″, 3040 × 1440;
• main / front camera — 16, 12, 12 MP / 10 MP;
• CPU — Samsung Exynos 9820;
• GPU — Mali-G76MP12;
• ROM — 128 GB;
• RAM — 8 GB;
• battery capacity — 4100 mAh;
• dimensions (W × H × T) — 74.1 × 157.6 × 7.8 mm;
• weight — 175 g.

Advantages

• good block of cameras;
• excellent autonomy;
• reliability, protection against scratches;
• lots of RAM.

Flaws

• expensive device;
• «thoughtful» fingerprint scanner;
• no notification indicator.

Samsung Galaxy Note 20 Ultra 5G 12/256GB (Snapdragon)

Model Samsung Galaxy Note 20 Ultra 5G 12/256GB (Snapdragon) combines advanced design, incredible processing power and impeccable reliability.

The body of the device is made of aluminum and tempered glass Corning Gorilla Glass Victus.

The device is reliably protected from moisture and dust in accordance with the IP68 standard. Its edge-to-edge display supports a 120Hz refresh rate for smooth scrolling and lightning-fast touch response.

Samsung Galaxy Note 20 Ultra 5G is equipped with a super camera with a 108-megapixel main module, stabilization system and a fivefold optical zoom.

Movies are recorded in 8K. The included S-Pen allows you to sketch and leave important reminders.

Specifications:

• display — Dynamic AMOLED, 6.9 ″, 3088 × 1440;
• main / front camera — 108, 12, 12 MP / 10 MP;
• CPU — Qualcomm Snapdragon 865 Plus;
• GPU — Adreno 650;
• ROM — 256 GB;
• RAM — 12 GB;
• battery capacity — 4500 mAh;
• dimensions (W × H × T) — 77.2 × 164.8 × 8.1 mm;
• weight — 208 g.

Advantages

• aesthetically pleasing appearance;
• large, bright, high-quality color screen;
• loud and powerful sound of the built-in speakers;
• thoughtful UI with beautiful icons and wallpapers;
• powerful ultra-wide camera;
• a huge amount of RAM.

Flaws

• the fingerprint sensor often does not work the first time;
• high price.

Samsung Galaxy S20+

In a stylish case made of tempered glass, it is designed to become a faithful companion and assistant for users who actively use the Internet and love to take pictures.

A powerful octa-core processor from Samsung and the latest GPU allow you to perform these tasks and more with comfort and lightning speed.

The camera block consists of four modules capable of taking photos with a resolution of up to 64 megapixels. The main camera is equipped with a thirty-fold digital zoom.

For added convenience, the Samsung Galaxy S20+ is equipped with the Samsung Pay contactless payment chip.

There is support for accelerated and wireless battery charging technologies.

Specifications:

• display — AMOLED, 6.7 ″, 3200 × 1440;
• main / front camera — 64, 12, 12 MP / 10 MP;
• CPU — Samsung Exynos 990;
• GPU — Mali-G77 MP11;
• ROM — 128 GB;
• RAM — 8 GB;
• battery capacity — 4500 mAh;
• dimensions (W × H × T) — 73.7 × 161.9 × 7.8 mm;
• weight — 186 g.

Advantages

• customizable screen;
• Ease of use;
• high quality performance;
• friendly and beautiful shell One UI 2.1;
• great camera quality.

Flaws

• inconvenient fingerprint scanner;
• relatively weak battery;
• the presence of third-party, often unnecessary software.