Oki vs Capitals
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Personalized lessons based on interests
- Speaking and writing practice
- Detailed feedback on mistakes
- AI coach for real-time conversation
- Flashcard creation
- Progress tracking
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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/
Capitals
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Capitals — весёлое образовательное приложение, которое помогает ребёнку шаг за шагом выучить столицы и флаги всех стран мира. • Уроки «столица дня»: запоминай по несколько столиц и проверяй себя — с серией достижений каждый день. • Викторины «Столицы» и «Флаги». • Вращающийся 3D-глобус: покажет, где именно находится каждая столица. • Фотографии городов и короткие, понятные детям факты об их истории. • Все ~195 стран мира: население, язык и материк. Без рекламы, без трекинга и без регистрации. Подходит для детей и всей семьи.
Screenshots
Verdict
The clearest difference is in-app purchases: Capitals at none against Oki's 10. Capitals also leads on iOS requirement (13.0 vs 17.0). On price, update cadence, ads and device support 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
Both are free to download. Oki sells 10 in-app purchases, starting at $1.00 per month. Capitals asks for nothing beyond the download.
Oki ships an update every 5 days, Capitals every 4 days. The most recent releases landed on September 29, 2026 and September 20, 2026 respectively.
| Parameter | Oki | Capitals |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (387 ratings) — better | — |
| Positive reviews | 63.6% of reviews | — |
| Number of ratings | 387 — better | — |
| Update frequency | Every 5 days | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 93 MB | 206 MB |
| Age rating | 12+ | 4+ |
| Developer | Alidar Kuchukov | VSPOMNI, OOO |
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
Capitals
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Oki
- Oki Promotion Monthly$1.001 Month
- Oki Premium 80% Off Discount$1.991 Month
- Oki Premium 50% off Discount$4.991 Month
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- 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
Capitals
No in-app purchases
Questions
Is Oki free?
Is Capitals free?
Do Oki or Capitals have ads?
Which is updated more often, Oki or Capitals?
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