Comparison

Oki vs Chatty

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

Head to head
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. Oki teaches 13 languages: English, Spanish, Japanese, Chinese, Kazakh, Italian, French, Vietnamese, Korean, German, Filipino, Indonesian and Hindi. 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. You stay engaged and remember more. — 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/

About

Chatty

Practice English speaking, grammar, and vocabulary through natural AI conversations. Send text or voice messages, receive corrections, and learn new words at your own pace. Build confidence and make using English a daily habit.

Highlights
  • AI-powered conversation practice
  • Voice message support
  • Grammar corrections
  • Vocabulary saving and review
  • Realistic learning topics
  • Customizable practice modes
Features
Read full description

Chatty is your AI language tutor for real conversation practice in 13 languages. Improve your speaking, grammar, vocabulary, and confidence through natural chats that feel simple, friendly, and personal. Send text or voice messages, get helpful corrections, learn new words, and practice at your own pace. Whether you are just starting or already speak well, Chatty adapts to your level and helps you build the habit of using your target language every day. Languages available: English, German, Spanish, French, Italian, Portuguese, Chinese, Japanese, Korean, Arabic, Turkish, Russian, and Polish. Features: Practice 13 languages through natural AI conversations Switch between languages anytime — learn one or several at once Send voice messages and improve speaking confidence Get grammar corrections and better phrase suggestions Save useful words and review them later Learn through realistic topics, questions, and daily chat Choose practice modes for different learning goals Study at your own pace, whenever you have a few minutes Chatty is made for learners who want more than flashcards. It helps you actually use the language in conversation, make mistakes safely, and keep improving one message at a time. Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Oki4 screens
Chatty4 screens

Verdict

The call

The clearest difference is ads: Oki at none against Chatty's shown. Oki also leads on review sentiment (63% vs 50%) and ratings volume (392 vs 36). Chatty's advantage is rating (4.9 vs 4.4) and iOS requirement (15.0 vs 17.0). On price, update cadence, in-app purchases and monetization model 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. Oki sells 10 in-app purchases, starting at $1.00 per month and Chatty sells 2 in-app purchases, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Chatty holds the better App Store score, 4.9 against 4.4. That said, the two scores are not equally well evidenced: Oki has 392 ratings behind it against 36, so its average is the more settled of the two. Written reviews complicate that: 63% of Oki's written reviews are positive against 50% of Chatty's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Oki ships an update every 4 days, Chatty weekly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard5 real differences · 5 level
Oki versus Chatty: the parameters behind the verdict, then further details
ParameterOkiChatty
PriceFreeFree
Rating4.4 (392 ratings)4.9 (36 ratings) — better
Positive reviews63.4% of reviews — better50.0% of reviews
Number of ratings392 — better36
Update frequencyEvery 4 days — betterWeekly
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.015.0 — better
Further details — not scored
Size98 MB105 MB
Age rating12+4+
DeveloperAlidar KuchukovDenis Karpenko

Customer experience

Oki

All ratings391 ratings
Positive84.1%
Neutral2.0%
Negative13.8%
Written reviews142 reviews
Positive63.4%
Neutral9.9%
Negative26.8%

Chatty

All ratings29 ratings
Positive96.6%
Neutral0.0%
Negative3.4%
Written reviews8 reviews
Positive50.0%
Neutral12.5%
Negative37.5%

Bugs and 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

Chatty

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

Oki

Subscriptions10
  • Oki Promotion Monthly$1.001 Month
  • Oki Premium 80% Off Discount$1.991 Month
  • Oki Pro Monthly 50% Off$2.991 Month
Show 7 more
  • Oki Premium 50% off Discount$4.991 Month
  • 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
  • Aleem Annual3 Days trial$88.001 Year
2 purchases

Chatty

Subscriptions2
  • Chatty Unlimited for a month$12.991 Month
  • Chatty Unlimited for one year$59.991 Year

Questions

Is Oki free?
Oki is free to download, with in-app purchases available.
Is Chatty free?
Chatty is free to download, with in-app purchases available.
Which has better reviews, Oki or Chatty?
Chatty is rated higher. Oki averages 4.4 out of 5 from 392 ratings, while Chatty averages 4.9 from 36 ratings.
Do Oki or Chatty have ads?
Chatty shows ads; Oki does not.
Which is updated more often, Oki or Chatty?
Oki ships an update every 4 days, and Chatty weekly. Most recently, Oki was updated on October 30, 2026 and Chatty on October 31, 2026.

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