Spaced Repetition vs FlashHack
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Spaced Repetition
This app simplifies revision planning with a personalized schedule and timely reminders. It offers a calendar view and customizable intervals, eliminating the need for manual flashcard creation. Focus on learning without the stress of organizing your study plan.
- Personalized revision plan creation
- Timely revision reminders
- Intuitive calendar visualization
- Customizable revision intervals
- No flashcard creation required
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Manually organizing and scheduling revisions with spaced repetition can be overwhelming, right? Our spaced repetition planner takes the hassle out of the process, making it effortless to organize your schedule and stay on track with your revisions! With our spaced repetition planner, you can create a personalized revision plan, organize your schedule, and receive reminders—so you can focus on learning instead of planning. Why choose our planner? • Reminders: Never miss a revision again with timely notifications based on your personalized schedule. • No flashcards: Unlike other apps, we keep it simple—no flashcard creation, just an intuitive way to manage your revisions. • Calendar: Visualize your entire revision plan at a glance with our user-friendly calendar. • Customizable intervals: Tailor your revision schedule to suit your needs. Take the hassle out of scheduling and stay on track with our spaced repetition planner! Terms of use: - https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy policies: - https://www.privacypolicies.com/live/ef430f32-57a4-4a07-b66f-bee2e3df95e9
FlashHack
Transform notes and documents into smart study decks with AI-powered flashcards. Utilize spaced repetition for effective learning and ask AI questions directly about your content. Track progress and personalize study materials.
- AI flashcard generation from documents
- Spaced repetition study system
- Chat Q&A for content-specific questions
- Handwritten note scanning
- PDF and image uploads
- Progress tracking per deck
- Customizable flashcards
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FlashHack turns any document or photo of notes into a smart study deck — instantly. Point your camera at a page of handwritten notes, upload a PDF, or snap a photo of a textbook chapter. FlashHack uses AI to read the content and generate high-quality flashcards in seconds. Edit, delete, or add cards to fine-tune your deck before studying. Once your deck is ready, study with spaced repetition (SM-2 algorithm) that schedules reviews based on how well you know each card — so hard cards come back sooner and easy cards fade into the background. Rate each card as Again, Hard, Good, or Easy, and FlashHack handles the rest. Not sure about something? Open Chat Q&A and ask any question about your document. The AI answers based on your uploaded content, so you get relevant, focused answers instead of generic web search results. What you can do in FlashHack: • Scan handwritten notes or printed pages with your camera • Upload PDF documents or images from your gallery • AI instantly generates 10–30 smart flashcards per document • Edit, reorder, add, or delete cards to personalize your deck • Study with flip-card UI and spaced repetition scheduling • Rate each card: Again / Hard / Good / Easy • Track mastered cards and study progress per deck • Chat Q&A: ask AI questions about any deck's content • Chat history saved per deck for reference • Free tier: 3 deck generations per day with ads • Premium: unlimited generations, ad-free, priority AI Subscription automatically renews unless canceled at least 24 hours before the end of the current period. Payment is charged to your Apple ID account at confirmation of purchase. You can manage and cancel subscriptions in your App Store account settings. Privacy Policy: https://lunawishlist.com/privacy-policy/ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is ratings volume: Spaced Repetition at 5 against FlashHack's 1. On price, rating, update cadence and ads 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. Spaced Repetition sells 3 in-app purchases, starting at $1.99 per month and FlashHack sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for Spaced Repetition against 5.0 for FlashHack. That said, the two scores are not equally well evidenced: Spaced Repetition has 5 ratings behind it against 1, so its average is the more settled of the two.
Spaced Repetition ships an update monthly, FlashHack every 3 weeks. The most recent releases landed on October 9, 2026 and October 4, 2026 respectively.
| Parameter | Spaced Repetition | FlashHack |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (5 ratings) | 5.0 (1 ratings) |
| Positive reviews | 87.5% of reviews | — |
| Number of ratings | 5 — better | 1 |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 34 MB | 113 MB |
| Age rating | 4+ | 4+ |
| Developer | SAMUEL PREMJI | Luna Wishlist |
Customer experience
Spaced Repetition
FlashHack
In-app purchases
Spaced Repetition
- Monthly subscription$1.991 Month
- Annual$9.991 Year
- Synapse premium$29.99
FlashHack
- FlashHack Premium Monthly$1.991 Month
- FlashHack Premium Annual$13.991 Year
Questions
Is Spaced Repetition free?
Is FlashHack free?
Which has better reviews, Spaced Repetition or FlashHack?
Do Spaced Repetition or FlashHack have ads?
Which is updated more often, Spaced Repetition or FlashHack?
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