AlphaSign Learn Sign Language vs Optimem
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AlphaSign Learn Sign Language
Learn the alphabet in American Sign Language (ASL) and British Sign Language (BSL). This educational app makes mastering sign language fun and easy with a simple scrolling interface and swipe gestures.
- Learn ASL alphabet
- Learn BSL alphabet
- Easy scrolling interface
- Swipe to next letter
- Educational and fun
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Welcome to AlphaSign, the application that teaches you the alphabet (A-Z) in American Sign Language (ASL) & British Sign Language, also known as BSL. AlphaSign is an educational, fun and enjoyable application. Give it a try, and see how fast you can learn, with AlphaSign ASL & BSL. Using an easy to use scrolling bar simply scroll to the letter you would like to learn, or simply swipe the screen to the next letter. Make learning the sign alphabet fun, with AlphaSign.
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.
- Bite-sized learning sessions
- Spaced repetition system
- Multimedia flashcard support
- Progress tracking and stats
- Customizable study settings
- Dark mode
- Content creation and sharing
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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
Screenshots
Verdict
The clearest difference is review sentiment: Optimem at 80% against AlphaSign Learn Sign Language's 33%. Optimem also leads on rating (4.7 vs 4.1) and in-app purchases (none vs 1). AlphaSign Learn Sign Language's advantage is iOS requirement (12.4 vs 16.0). On price, ratings volume 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. AlphaSign Learn Sign Language sells 1 one-off in-app purchase. Optimem asks for nothing beyond the download.
Optimem holds the better App Store score, 4.7 against 4.1. Both are backed by a comparable volume of ratings — 24 and 30 respectively. Written reviews point the same way: 33% of AlphaSign Learn Sign Language's written reviews are positive against 80% of Optimem's.
AlphaSign Learn Sign Language ships an update every 5 months, Optimem monthly. The most recent releases landed on September 10, 2026 and September 17, 2026 respectively.
| Parameter | AlphaSign Learn Sign Language | Optimem |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (24 ratings) | 4.7 (30 ratings) — better |
| Positive reviews | 33.3% of reviews | 80.0% of reviews — better |
| Number of ratings | 24 | 30 — better |
| Update frequency | Every 5 months | Monthly — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.4 — better | 16.0 |
| Further details — not scored | ||
| Size | 63 MB | 54 MB |
| Age rating | 4+ | 4+ |
| Developer | Fragranze Apps Limited | Organic Software LLC |
Customer experience
AlphaSign Learn Sign Language
Optimem
In-app purchases
AlphaSign Learn Sign Language
- Alphasign - Remove Ads$1.99
Optimem
No in-app purchases
Questions
Is AlphaSign Learn Sign Language free?
Is Optimem free?
Which has better reviews, AlphaSign Learn Sign Language or Optimem?
Do AlphaSign Learn Sign Language or Optimem have ads?
Which is updated more often, AlphaSign Learn Sign Language or Optimem?
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