Comparison

Esential vs Oki

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

Head to head
About

Esential

This AI-powered educational app offers personalized learning paths across various subjects like AI, IT, and business. It supports multi-modal learning through audio, visual, and chat interactions, with a community feature for collaboration and a testing center for progress tracking.

Highlights
  • AI-tailored learning programs
  • Audio, visual, and chat learning modes
  • Diverse courses in AI, IT, business
  • Community study groups
  • Instant AI learning and career advice
  • Customizable learning paths
  • Testing center with progress tracking
Features
Read full description

Unlock Your Potential with Esential! Personalized AI-powered learning for mastering new skills and boosting your career. Perfect for students, professionals, and lifelong learners. Why Esential? Personalized Paths: AI-tailored programs for your interests and goals. Multi-Modal Learning: Audio: Improve language skills. Visual: Instant feedback on image prompts. Chat: Practice languages interactively. Diverse Courses: AI, IT, startups, business, living abroad, and more. Community: Join study groups and collaborate. Essential AI: Instant learning and career advice. Custom Programs: AI-crafted learning paths on any topic. Testing Center: Take tests, earn points, track progress. Download Esential today!

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

Esential4 screens
Oki4 screens

Verdict

The call

The clearest difference is rating: Esential at 5.0 against Oki's 4.4. Esential also leads on update cadence (daily vs every 5 days) and iOS requirement (14.0 vs 17.0). Oki's advantage is ratings volume (387 vs 5). On price, ads, 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. Esential sells 1 in-app purchase, starting at $14.99 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

Esential holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Oki has 387 ratings behind it against 5, so its average is the more settled of the two.

UpkeepUpdate frequency

Esential ships an update daily, Oki every 5 days. The most recent releases landed on September 20, 2026 and September 27, 2026 respectively.

Scorecard4 real differences · 6 level
Esential versus Oki: the parameters behind the verdict, then further details
ParameterEsentialOki
PriceFreeFree
Rating5.0 (5 ratings) — better4.4 (387 ratings)
Positive reviews—63.6% of reviews
Number of ratings5387 — better
Update frequencyDaily — betterEvery 5 days
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS14.0 — better17.0
Further details — not scored
Size57 MB93 MB
Age rating4+12+
DeveloperESENTIAL LLCAlidar Kuchukov

Customer experience

Esential

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Oki

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

Bugs and requests

Esential

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

1 purchases

Esential

Subscriptions1
  • Monthly unlimited access$14.991 Month
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 Esential free?
Esential 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, Esential or Oki?
Esential is rated higher. Esential averages 5.0 out of 5 from 5 ratings, while Oki averages 4.4 from 387 ratings.
Do Esential or Oki have ads?
Neither Esential nor Oki shows ads.
Which is updated more often, Esential or Oki?
Esential ships an update daily, and Oki every 5 days. Most recently, Esential was updated on September 20, 2026 and Oki on September 27, 2026.

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