FlashStacks vs Plan2Ace
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FlashStacks
Transform study materials into interactive Home Screen widgets. AI generates flashcards from PDFs, and spaced repetition optimizes learning. Visualize concepts with image occlusion and track progress with detailed stats.
- Home and Lock Screen widgets
- AI-powered PDF to flashcard generation
- Spaced repetition learning
- Image occlusion cards
- Progress tracking and stats
- Customizable widget themes
Read full descriptionHide full description
Your flashcards, on your Home Screen. FlashStacks turns your study cards into Home Screen, Lock Screen and StandBy widgets. Glance at a question between classes. Tap to reveal the answer. Tap again for the next card — all without opening the app. Learning fits into the moments already filling your day. ALWAYS VISIBLE, ALWAYS READY Widgets come in every size and rotate through your stacks automatically, so every time you pick up your phone there's something new to learn. Start a study session and your card follows you to the Lock Screen and Dynamic Island as a Live Activity. AI DECKS FROM YOUR NOTES Upload any PDF — lecture slides, textbook chapters, study guides — and AI builds a complete deck in seconds. Choose High-Yield for exam prep or Comprehensive for full coverage. FlashStacks even finds the diagrams in your PDF so you can turn them into image occlusion cards. LEARN A LANGUAGE FlashStacks Learn gives you ready-made packs in French, Spanish, Japanese, Korean and Mandarin — greetings, numbers, food, travel and more. Add a pack and pick up new words from your Lock Screen all day. SPACED REPETITION THAT WORKS FlashStacks uses the same proven science behind Anki. Cards you struggle with come back sooner. Cards you've mastered fade into the background. Study smarter, not longer. IMAGE OCCLUSION CARDS Add any image — diagrams, anatomy, maps — and draw boxes over the parts to hide. Tap to reveal what's underneath. Perfect for visual subjects. BRING YOUR CARDS WITH YOU Import from Anki, CSV, TSV or JSON. Search every card across all your stacks and keep them organised with tags. BEAUTIFUL BY DESIGN Every stack gets its own colour palette — soft pastels or bold modern tones — and your widgets match. Dark mode uses pure OLED black. TRACK YOUR PROGRESS See mastery, difficulty breakdown and 14-day activity for every stack, plus a study calendar across everything you've learned. Build a streak. Hit your daily goal. FLASHSTACKS PREMIUM Unlock unlimited stacks, AI deck generation from PDF, image occlusion cards and every FlashStacks Learn pack. Free accounts include up to 2 stacks. Monthly and annual plans available. Annual plans include a discounted first month. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Plan2Ace
Read full descriptionHide full description
Missed a day? The plan quietly redraws itself. You never open it to a backlog. Built for students who find starting the hardest part, including students with ADHD. Give Plan2Ace your exam date. Exam in 47 days? It builds all 47: what to study, for how long, in what order. Open it and today's work is already picked, sized, and ordered. Nothing to decide. Just start. WHAT IT WON'T DO It won't do your homework. It won't pile up missed days. It won't leave you staring at a blank page. WHAT IT WILL DO • Rebuild your plan around your deadline whenever life gets in the way • Ace, your tutor, explains the same idea from new angles until it lands • Photo a stuck question and Ace works forward one step at a time with you • Flashcards it writes for you, or your own, shown the day before you'd forget • Timed papers in your exam's own format, marked point by point STUDY WITH FRIENDS Private rooms to share notes and materials and keep each other honest. Pomodoro timer and lofi for when you need to sit down and work. WORKS EVEN AT ZERO CREDITS On supported iPhones, the tutor keeps working with on-device Apple Intelligence. Nothing leaves your phone. FOR YOUR EXAM GCSE, A level, IB, AP, and more. For high school and university students preparing for a specific exam. PRICING Free to start. Pro yearly is $96, under $2 a week. Also $9.99 monthly or $2.99 weekly. Ace can make mistakes. Always check against your official materials. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is iOS requirement: FlashStacks at 17.6 against Plan2Ace's 26.5. On price, update cadence, ads and in-app purchases 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. FlashStacks sells 3 in-app purchases, starting at $4.99 per month and Plan2Ace sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.
FlashStacks ships an update every 8 days, Plan2Ace every 5 days. Both last shipped on October 31, 2026.
| Parameter | FlashStacks | Plan2Ace |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (7 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 7 — better | — |
| Update frequency | Every 8 days | Every 5 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone | iPhone |
| Requires iOS | 17.6 — better | 26.5 |
| Further details — not scored | ||
| Size | 11 MB | 73 MB |
| Age rating | 4+ | 12+ |
| Developer | Bailey Skewes | Erildo Shuli |
In-app purchases
FlashStacks
- FlashStacks Premium — Monthly$4.991 Month
- Premium Special Offer$24.991 Year
- FlashStacks Premium — Annual1 Month trial$39.991 Year
Plan2Ace
- Pro Weekly$2.997 Days
- Pro Monthly$9.991 Month
- Pro Yearly$96.001 Year









