Comparison

21 Век vs Свет Онлайн.

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

21 Век

This app allows users to purchase fuel and goods from a gas station network at a discount. It offers features like pre-paying for fuel, transferring fuel to others, and tracking transaction history. Users can also stay informed about promotions and receive personalized offers.

Highlights
  • Pre-purchase fuel at a discount
  • Pay for fuel without cashier
  • Transfer fuel to other users
  • Convert fuel types
  • Track transaction history
  • Discover promotions and offers
Features
Read full description

Официальное мобильное приложение сети АЗС "Азерпетрол". "Азерпетрол" – это мобильное приложение, с которым вы можете выгодно покупать топливо и товары в сети автозаправочных станций Азерпетрол. Полезный функционал позволяет: - заправлять автомобиль без необходимости оплаты на кассе; - покупать топливо со скидкой заранее; - оплачивать счетом Азерпетрол на кассах и кассах самообслуживания; - переводить топливо другим пользователям; - конвертировать купленное топливо из одного вида в другой; - отслеживать историю транзакций; - узнавать о выгодных акциях и получать персональные предложения; Скачивайте приложение "Азерпетрол", заправляйтесь в сети АЗС "Азерпетрол" и получайте бонусы.

About

Свет Онлайн.

Manage your utility account for individuals in Karachay-Cherkessia and Kabardino-Balkaria. Access all features of the web portal, including viewing account data, submitting meter readings, and making payments.

Highlights
  • Login and registration
  • Password change
  • View account data and balance
  • Submit meter readings
  • Pay for services
  • Check charges and payments
  • View monthly bills
Features
Read full description

Мобильное приложение «Свет онлайн» - данное приложение было разработано, для удобства использования личного кабинета абонентов физических лиц Карачаево-Черкесии, Кабардино-Балкарии. Если у абонента имеется доступ на WEB-страничку ЛК, а так же логин и пароль для входа, он может использовать наше приложение на своем телефоне, скачав его из доступных источников. В нашем приложении, доступны все функции WEB-версии личного кабинета, а именно:
 - Регистрация или вход по логину и паролю;
 - Изменение текущего пароля;
 - Возможность просмотреть общие данные и баланс счета; 
- Возможность передачи показаний по счетчикам или просмотреть переданные ранее показания;
 - Оплата за услуги; 
- Проверить начисления и платежи;
 - Просмотреть квитанции на текущий месяц;

Screenshots

21 Век4 screens
Свет Онлайн.4 screens

Verdict

The call

The clearest difference is review sentiment: 21 Век at 75% against Свет Онлайн.'s 5%. 21 Век also leads on rating (4.5 vs 1.0). Свет Онлайн.'s advantage is update cadence (fortnightly vs every 6 weeks). On price, ratings volume, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

21 Век holds the better App Store score, 4.5 against 1.0. Both are backed by a comparable volume of ratings — 8 and 10 respectively. Written reviews point the same way: 75% of 21 Век's written reviews are positive against 5% of Свет Онлайн.'s.

UpkeepUpdate frequency

21 Век ships an update every 6 weeks, Свет Онлайн. fortnightly. The most recent releases landed on November 7, 2026 and October 30, 2026 respectively.

Scorecard3 real differences · 7 level
21 Век versus Свет Онлайн.: the parameters behind the verdict, then further details
Parameter21 ВекСвет Онлайн.
PriceFreeFree
Rating4.5 (8 ratings) — better1.0 (10 ratings)
Positive reviews75.0% of reviews — better4.8% of reviews
Number of ratings810 — better
Update frequencyEvery 6 weeksFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.115.0 — better
Further details — not scored
Size38 MB24 MB
Age rating4+4+
DeveloperAlbert MamalievООО "Стек-ИТ"

Customer experience

21 Век

All ratings7 ratings
Positive85.7%
Neutral0.0%
Negative14.3%
Written reviews12 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

Свет Онлайн.

All ratings9 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews62 reviews
Positive4.8%
Neutral6.5%
Negative88.7%

Bugs and requests

21 Век

Not enough reviews yet to summarise bugs or requests.

Свет Онлайн.

Reported bugs

44 issues
  • Application does not work
  • Application constantly shows errors
  • Cannot transfer meter readings and pay bills
  • Payment receipts do not arrive
  • Cannot download receipts or bills from the app
Show 39 more
  • Application freezes
  • No connection and service error on login
  • Application does not load
  • Cannot link personal account
  • Incorrect data display (e.g., consumption)
  • FAQ section provides irrelevant answers
  • No proper billing system
  • Application requires re-login frequently
  • Network errors during data entry
  • Incorrectly credits payments (ODN and PENI)
  • Application is slow and unresponsive
  • Server errors
  • Unknown error when entering personal account number
  • Cannot make payments for months
  • Cannot submit appeals
  • Does not register two personal accounts
  • Personal account not displayed on the receipt
  • Sums are unclear and do not update after payment
  • Cannot bind personal account
  • Payment issues after update
  • Application does not load after update
  • Application freezes on splash screen
  • Cannot view charges or amounts
  • Cannot bind personal account, requires 'note'
  • Payment amount differs from charged amount
  • Application requires re-attaching personal account and annual payment after updates
  • Cannot transfer meter readings
  • Cannot bind personal account, requires all fields to be filled, including 'note'
  • Payment via SBP debited but not reflected in app
  • Cannot send appeals, server timeout error
  • Cannot make online payments after last update
  • Application crashes frequently
  • Cannot enter meter readings
  • Cannot add a second personal account
  • Cannot add multiple personal accounts
  • Cannot bind personal account, shows error
  • Cannot bind personal account
  • Cannot bind account
  • Error when trying to log in: 'Error_String.HTTP_Error_Messages.429'

Requested features

9 requests
  • Improve application stability and performance
  • Fix issues with personal account binding
  • Ensure correct payment processing and confirmation
  • Improve user interface and navigation
  • Add support for SBP payments
Show 4 more
  • Provide clear billing information and history
  • Enable submission of support requests
  • Allow registration of multiple personal accounts
  • Make the app more user-friendly and intuitive

In-app purchases

None

21 Век

No in-app purchases

None

Свет Онлайн.

No in-app purchases

Questions

Is 21 Век free?
21 Век is free to download, with no in-app purchases.
Is Свет Онлайн. free?
Свет Онлайн. is free to download, with no in-app purchases.
Which has better reviews, 21 Век or Свет Онлайн.?
21 Век is rated higher. 21 Век averages 4.5 out of 5 from 8 ratings, while Свет Онлайн. averages 1.0 from 10 ratings.
Do 21 Век or Свет Онлайн. have ads?
Neither 21 Век nor Свет Онлайн. shows ads.
Which is updated more often, 21 Век or Свет Онлайн.?
21 Век ships an update every 6 weeks, and Свет Онлайн. fortnightly. Most recently, 21 Век was updated on November 7, 2026 and Свет Онлайн. on October 30, 2026.

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