Memhack vs Flash's
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Memhack
This app uses a spaced repetition system to help you memorize vocabulary, sentences, and grammar rules. It provides pre-made flashcards created by teachers for an optimal learning experience. Sync your progress across devices and focus on learning without the hassle of creating your own study materials.
- Spaced repetition system algorithm
- Teacher-created flashcards
- Personalized review schedule
- Intuitive and user-friendly interface
- Web and mobile app sync
- Pre-made study materials
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Join thousands of students and memorize words, sentences, expressions and grammar rules in a simple and intuitive way! Memhack is an app that uses a powerful SRS (spaced repetition system) algorithm to help you fix content: no more forgetting everything within days after you study! All the flashcards were created by teachers in order to guarantee the best learning experience possible in any language! It works in a very simple way: during your Fluency Academy classes, you will learn a lot of new words and expressions, and after class you’ll be able to practice them all by using Memhack! Reinforce the content seen in class through an algorithm that is personalized for you: the app learns with your answers and shows the cards you need to review at the right moment. Don’t waste hours and hours planning and creating cards or lists from scratch - our team of teachers has already done that for you! This way, you can focus on what really matters: learning. To make your learning even easier, we created an intuitive and user-friendly interface, all you have to do is open the app and study! All your progress is synced with the web app, which means you can study on both your computer or smartphone. So hey, let’s revolutionize your way of learning languages?
Flash's
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Study smarter, not harder. Flashcard uses the SM-2 spaced repetition algorithm to show you each card at the exact moment you are about to forget it. Whether you are preparing for an exam, building vocabulary, learning a language, or mastering any subject, Flashcard adapts to your pace. HOW IT WORKS Rate your recall after each card: Again, Hard, Good, or Easy. Flashcard automatically schedules your next review. Cards you know well are pushed weeks into the future. Cards you struggle with come back the next day. Over time, you retain more while studying less. FEATURES Spaced Repetition (SM-2) — the proven algorithm trusted by learners worldwide Custom Decks — create cards with text, audio, and images (Premium) Text-to-Speech — generate pronunciation audio instantly for any word or phrase Audio Recording — record your own voice directly on each card Anki Import — bring your existing decks from Anki straight into the app Folder Organization — keep your library tidy with named folders Study Analytics — track your streak, mastered cards, XP progress, and daily activity on a visual calendar Offline First — your cards live on your device and work without internet Cloud Sync — your progress is backed up and synced across all your devices Dark and Light Mode — follows your system theme or set your preference manually LANGUAGE LEARNERS Building vocabulary in Japanese, Italian, Spanish, or any other language? Browse the Study Store for curated modules with native audio and vocabulary organized by level. Beginner and Intermediate modules are included with Premium. Advanced modules are included with Ultra. Specialty decks are available as individual purchases. PLANS Free 10 decks · 200 cards per deck · 100 reviews per day Premium 100 decks · 1,000 cards per deck · images on cards · audio sync · no ads Beginner and Intermediate store modules included Ultra Everything in Premium · all store modules included · 100 MB storage per deck SUBSCRIPTIONS Premium and Ultra are available as monthly and annual auto-renewable subscriptions. Payment will be charged to your Apple ID account at confirmation of purchase. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. You can manage or cancel your subscription anytime in your App Store account settings. For more information about the terms of use, visit: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ PRIVACY Your data belongs to you. We never sell or share your personal information with third parties.
Screenshots
Verdict
The clearest difference is in-app purchases: Memhack at none against Flash's's 2. Flash's's advantage is update cadence (every 5 days vs monthly). On price, ads, device support and iOS requirement 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. Flash's sells 2 in-app purchases, starting at $2.99 per month. Memhack asks for nothing beyond the download.
Memhack ships an update monthly, Flash's every 5 days. The most recent releases landed on September 28, 2026 and October 1, 2026 respectively.
| Parameter | Memhack | Flash's |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (10 ratings) — better | — |
| Positive reviews | 40.5% of reviews | — |
| Number of ratings | 10 — better | — |
| Update frequency | Monthly | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 81 MB | 39 MB |
| Age rating | 4+ | 4+ |
| Developer | FLUENCY ACADEMY ENSINO DE IDIOMAS | Guilherme Quintero Lorenzi |
Bugs and requests
Memhack
Reported bugs
17 issues- App closes unexpectedly during study sessions
- Cannot log in or reset password
- Decks disappear or are deleted
- Progress is not saved
- App freezes or becomes unresponsive
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- Cards do not load or are not counted
- Login information is not recognized
- App crashes during card review
- Repetition count is incorrect
- Audio is missing from most cards
- App does not work offline
- Looping issue where decks restart
- App redirects to website login
- App does not save study days
- Error messages without explanation
- Features not working after updates
- AI for spaced repetition is inconsistent
Requested features
17 requests- Option to delete cards/decks
- Ability to create custom subjects/classes
- Integration with Fluency Academy lessons/videos
- Option to create own cards or export existing ones
- Feature to practice pronunciation with AI or real people
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- Option to add own cards
- Ability to study in reverse (Portuguese -> Spanish)
- Widgets for home screen
- Motivation features (rewards, skins, avatar, rankings)
- Automatic audio playback after flipping card
- Option to click on evaluation emoji to skip translation
- More ways to train and memorize
- Option to create own subjects or word/phrase classes
- Option to add new cards
- Notification system for study times
- Allow more than 1 session per day
- Add words of interest
Flash's
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Memhack
No in-app purchases
Flash's
- Premium Monthly Fee$2.991 Month
- Premium Anual$24.991 Year









