Comparison

kop soz vs Oki

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

Head to head
About

kop soz

Learn Kazakh easily with this app designed for Russian speakers. It offers a full course from alphabet to conversational phrases, using interactive exercises and spaced repetition for effective memorization. Suitable for all ages and learning levels.

Highlights
  • Full Kazakh language course
  • Learn alphabet and pronunciation
  • Daily conversational phrases
  • Thematic vocabulary for travel and work
  • Spaced repetition for memorization
  • Interactive exercises and flashcards
Features
Read full description

Казахский – это государственный язык Казахстана. С kop soz приложением вы сломаете языковой барьер. Освойте казахский язык с kop soz – приложением, созданным для русскоязычных пользователей, которое помогает учить казахский язык легко и эффективно. Изучайте казахский алфавит, расширяйте словарный запас, тренируйте и запоминайте разговорную речь с тематическими упражнениями. Что предлагает kop soz? ■ полный курс казахского языка ■ освойте казахский с нуля: удобные уроки для детей и взрослых ■ разговорные фразы на каждый день: запоминайте ключевые выражения ■ казахский алфавит: буквы, транскрипция, произношение ■ упражнения тематические: учите казахский язык для путешествий, работы, общения ■ метод интервального повторения: запоминайте новые слова навсегда ■ разделение по темам: изучайте слова, грамматику и выражения по категориям ■ без лишней теории: только практика, интерактивные задания и удобные карточки Для кого подойдет kop soz? ■ для русскоязычных пользователей, которые хотят освоить казахский язык ■ для детей и взрослых, изучающих казахский с нуля ■ для путешественников – учите казахский язык для поездок по Казахстану ■ для работы и бизнеса – расширяйте словарный запас и общайтесь на казахском ■ для студентов – готовьтесь к экзаменам и тестам Почему стоит выбрать kop soz? ■ учить казахский язык теперь просто – удобные задания и понятные объяснения ■ без скучной зубрежки – игровая система обучения делает процесс интересным ■ адаптивные упражнения – подстраиваются под ваш уровень знаний ■ разговорная практика – учитесь применять язык в реальной жизни Откройте для себя мир казахского языка с kop soz и освойте казахский в удобном темпе. (другие виды написания приложения - köp söz, коп соз, көп сөз) Скачайте приложение и начните учить казахский язык уже сегодня! Terms of Use https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Oki

Learn English with personalized lessons, speaking and writing practice, and detailed feedback from an AI coach. Create flashcards and track your progress across all language skills. This app offers a comprehensive approach to mastering English.

Highlights
  • Personalized lessons based on interests
  • Speaking and writing practice
  • Detailed feedback on mistakes
  • AI coach for real-time conversation
  • Flashcard creation
  • Progress tracking
Features
Read full description

Learning English across multiple apps is inefficient. Oki combines personalized lessons, speaking practice, writing tasks, flashcards, and a personal AI coach in a single interface. There is no need to switch between different services just to train separate skills. What Oki offers: — Lessons created around your interests. The app generates study materials based on the topics that matter to you: from travel and technology to literature and business. This keeps you engaged and helps you remember new content faster. — Speaking practice with intelligent feedback. You speak, and the system analyzes your pronunciation, fluency, and vocabulary usage. Oki highlights exactly what can be improved and suggests adjustments that help you sound more natural. — Writing practice and homework review. Written assignments are checked in detail: every mistake is not just corrected, but explained. You receive a breakdown that shows the reason behind each error, which helps you avoid it in the future. — Flashcards with interval repetition. Completed material is automatically turned into flashcards. The system shows them at the optimal moment so that knowledge moves into long-term memory without unnecessary cramming. — Real-time AI coach conversations. Each dialogue adapts to your current level. New words and phrases are introduced gradually, without overload, so your vocabulary expands naturally during the conversation. Coming soon: — Automatic generation of a complete study program built around your interests and goals.
— Watching YouTube videos with translation and the ability to create lessons based on any video.
— Full in-bot communication without distractions from external tools. Why people choose Oki: A single environment. Lessons, speaking, writing, flashcards, and feedback are available in one app. There is no need to download separate programs for each skill. Real, measurable progress. Unlike traditional apps that mainly offer mechanical exercises in a glossy package, Oki tracks concrete metrics: practice time, number of words spoken, and completed lessons. You always know exactly how far you have come. Tracking of all language skills. Detailed statistics let you see not only completed topics but also the balance between speaking, writing, and revision. Notifications support consistency without harsh pressure. Structured tasks, not endless chat. Unlike text-based AI chatbots, Oki provides a format close to study materials: full lessons, flashcards, verified tasks with error breakdowns. This goes deeper than simply exchanging messages with a bot. Personalization without overload. The AI remembers your interests, preferred pace, and learning style. The difficulty of new words increases gradually, so you never face abrupt jumps or lose confidence. Higher accuracy of feedback. The system detects errors 64% more accurately than comparable solutions and provides corrective feedback that contributes to real improvement, not just a formal check. The method behind Oki was developed with input from English teaching experts from the United States. The project is powered by the Aleem Labs team — an educational community that has been helping learners with free guides for two years. These materials have been used by more than 600,000 people, and an additional 3,000 students from 35 countries have completed training through the team’s programs. Three actions required to master a language: • Learning new words and phrases. • Practicing speaking and writing. • Reviewing through an interval repetition system. Oki implements all three stages: personalized lessons for acquiring new knowledge, speech and writing practice with feedback, and flashcards for reinforcement. This is exactly why users achieve noticeable results. Download Oki and start learning English systematically — without the chaos of multiple apps and superficial cramming. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

kop soz4 screens
Oki4 screens

Verdict

The call

The clearest difference is rating: kop soz at 4.9 against Oki's 4.4. kop soz also leads on review sentiment (98% vs 64%) and iOS requirement (15.0 vs 17.0). Oki's advantage is ratings volume (387 vs 105). On price, update cadence, 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. kop soz sells 3 in-app purchases, starting at $3.99 per month and Oki sells 10 in-app purchases, starting at $1.00 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

kop soz holds the better App Store score, 4.9 against 4.4. Both are backed by a comparable volume of ratings — 105 and 387 respectively. Written reviews point the same way: 98% of kop soz's written reviews are positive against 64% of Oki's.

UpkeepUpdate frequency

kop soz ships an update every 10 days, Oki every 5 days. The most recent releases landed on September 23, 2026 and September 27, 2026 respectively.

Scorecard4 real differences · 6 level
kop soz versus Oki: the parameters behind the verdict, then further details
Parameterkop sozOki
PriceFreeFree
Rating4.9 (105 ratings) — better4.4 (387 ratings)
Positive reviews98.4% of reviews — better63.6% of reviews
Number of ratings105387 — better
Update frequencyEvery 10 daysEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size152 MB93 MB
Age rating4+12+
DeveloperArman TuralinAlidar Kuchukov

Customer experience

kop soz

All ratings105 ratings
Positive99.0%
Neutral1.0%
Negative0.0%
Written reviews64 reviews
Positive98.4%
Neutral0.0%
Negative1.6%

Oki

All ratings387 ratings
Positive84.0%
Neutral2.1%
Negative14.0%
Written reviews140 reviews
Positive63.6%
Neutral10.0%
Negative26.4%

Bugs and requests

kop soz

Not enough reviews yet to summarise bugs or requests.

Oki

Reported bugs

1 issue
  • Registration process not working properly

Requested features

2 requests
  • Ability to register through third-party accounts
  • More language learning options

In-app purchases

3 purchases

kop soz

Subscriptions3
  • Премиум$3.991 Month
  • kop soz • PROMO PRO$17.991 Year
  • Премиум7 Days trial$34.991 Year
10 purchases

Oki

Subscriptions10
  • Oki Promotion Monthly$1.001 Month
  • Oki Premium 80% Off Discount$1.991 Month
  • Oki Premium 50% off Discount$4.991 Month
Show 7 more
  • Oki Pro Monthly$5.991 Month
  • Oki Pro$9.991 Month
  • Aleem Monthly3 Days trial$9.991 Month
  • Oki Promotion Annual$10.001 Year
  • Oki Pro Annual$29.991 Year
  • Oki Annual$88.001 Year
  • Aleem Annual3 Days trial$88.001 Year

Questions

Is kop soz free?
kop soz is free to download, with in-app purchases available.
Is Oki free?
Oki is free to download, with in-app purchases available.
Which has better reviews, kop soz or Oki?
kop soz is rated higher. kop soz averages 4.9 out of 5 from 105 ratings, while Oki averages 4.4 from 387 ratings.
Do kop soz or Oki have ads?
Neither kop soz nor Oki shows ads.
Which is updated more often, kop soz or Oki?
kop soz ships an update every 10 days, and Oki every 5 days. Most recently, kop soz was updated on September 23, 2026 and Oki on September 27, 2026.

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