Comparison

Optimem vs Toki Trainer

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

Head to head
About

Optimem

Master any subject quickly with science-backed flashcards. Learn in short, engaging sessions using spaced repetition and multimedia support. Track your progress and customize your study experience with a simple, distraction-free interface.

Highlights
  • Bite-sized learning sessions
  • Spaced repetition system
  • Multimedia flashcard support
  • Progress tracking and stats
  • Customizable study settings
  • Dark mode
  • Content creation and sharing
Features
Read full description

Optimem helps you study & memorize any topic as fast as possible - Start learning in seconds. Choose from a wide variety of topics across Spanish, Music, Programming, and more. - Learn in 1-2 minute bite-sized sessions, like while waiting in line or on a bus. Quickly learn and practice on a fast path to mastery. - Experience simple, delightful design combined with cutting-edge scientific techniques. Together, learning can be more efficient and more enjoyable. Features - Freely and instantly download learning materials in the app from a wide variety of subjects - Seamless feed of questions to make learning fast and easy - Spaced repetition system (also known as SRS or Leitner system) which lets you spend less time learning - Sound and haptics feedback (short vibrations) to reinforce correct and incorrect answers - Confetti blasts on correct answer streaks for more delight - Support for images, audio, text, emojis and markdown formatting for flash cards - Support for text-to-speech for pronunciation and listening practice - Stats about your learning progress and rate - List and explore all cards in a topic - Customize new and review questions per day - Dark mode - Simple and distraction-free interface - Experimental and controversial Instant Brain Upload mode* - Connect and transfer content between your phone and another computer - Open source learning materials - Create, edit, remix, and share any learning materials Languages: - Spanish - French - Japanese – Hiragana & Katakana - Hindi – Devanagari alphabet - Russian – Cyrillic alphabet - Korean – Hangul alphabet - Mandarin Chinese - Norwegian - International morse code - Braille - American sign language - Toki Pona – a language with only ~120 words, designed to be simple and positive Other topics: - Piano keys - Music theory – music intervals & modes - Rust programming language - How to count in binary - … and growing! Learning materials can be created, edited, and shared by anyone. Brought to you by Organic Software. Privacy Policy: - https://optimem.org/privacy Have feedback or questions? - Contact us via https://optimem.org/discord

About

Toki Trainer

This app serves as a study guide for the toki pona language. It allows users to look up words and phrases, and offers a flashcard lesson plan to help memorize the entire dictionary.

Highlights
  • Toki pona word and phrase lookup
  • Flashcard lesson plan
  • Dictionary memorization
  • Study guide
  • Language learning tool
Features
Read full description

Look up toki pona words and phrases, and study the included flash-card lesson plan. Train your mind and memorize the entire dictionary. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Optimem4 screens
Toki Trainer4 screens

Verdict

The call

The clearest difference is in-app purchases: Optimem at none against Toki Trainer's 7. Optimem also leads on update cadence (monthly vs every 11 months) and rating (4.7 vs 4.5). Toki Trainer's advantage is review sentiment (90% vs 80%). On price, ratings volume, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Toki Trainer sells 7 in-app purchases, starting at $0.99 per month. Optimem asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Optimem holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 30 and 13 respectively. Written reviews complicate that: 80% of Optimem's written reviews are positive against 90% of Toki Trainer's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Optimem ships an update monthly, Toki Trainer every 11 months. Both last shipped on September 17, 2026.

Scorecard5 real differences · 5 level
Optimem versus Toki Trainer: the parameters behind the verdict, then further details
ParameterOptimemToki Trainer
PriceFreeFree
Rating4.7 (30 ratings) — better4.5 (13 ratings)
Positive reviews80.0% of reviews90.0% of reviews — better
Number of ratings30 — better13
Update frequencyMonthly — betterEvery 11 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better17.0
Further details — not scored
Size54 MB1 MB
Age rating4+12+
DeveloperOrganic Software LLCElizabeth Cray

Customer experience

Optimem

All ratings30 ratings
Positive93.3%
Neutral0.0%
Negative6.7%
Written reviews20 reviews
Positive80.0%
Neutral10.0%
Negative10.0%

Toki Trainer

All ratings13 ratings
Positive84.6%
Neutral0.0%
Negative15.4%
Written reviews10 reviews
Positive90.0%
Neutral0.0%
Negative10.0%

In-app purchases

None

Optimem

No in-app purchases

7 purchases

Toki Trainer

Subscriptions3
  • Dependable$0.991 Month
  • Generous$4.991 Month
  • Lavish$9.991 Month
One-time4
  • Small Tip$0.99
  • Medium Tip$4.99
  • Large Tip$9.99
Show 1 more
  • Super Tip$19.99

Questions

Is Optimem free?
Optimem is free to download, with no in-app purchases.
Is Toki Trainer free?
Toki Trainer is free to download, with in-app purchases available.
Which has better reviews, Optimem or Toki Trainer?
Optimem is rated higher. Optimem averages 4.7 out of 5 from 30 ratings, while Toki Trainer averages 4.5 from 13 ratings.
Do Optimem or Toki Trainer have ads?
Neither Optimem nor Toki Trainer shows ads.
Which is updated more often, Optimem or Toki Trainer?
Optimem ships an update monthly, and Toki Trainer every 11 months. Most recently, Optimem was updated on September 17, 2026 and Toki Trainer on September 17, 2026.

Other comparisons