FlashSnap vs Hirake
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FlashSnap
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Snap your textbook. Hide what you want to learn. That's it. You don't have time to make flashcards from scratch. FlashSnap solves that. Take a photo of any page, brush over the key words with a marker, and your personal study sheet is ready in seconds. The familiar paper red-sheet method, now on your phone — with a little extra intelligence. What you can do 【Photo Sheet】 Photograph textbooks, notebooks, or any printed material. Cover important words with red, blue, or green markers. During study, the markers hide the answers — tap to reveal. 【Classic Cards】 Front-and-back cards with images or text. Perfect for vocabulary or matching pairs. 【Text Cards】 Simple Q&A format. Great for formulas, definitions, or quick facts. 【Spaced Repetition (SM-2)】 The cards you remember well come back later. The ones you struggle with come back soon. Backed by proven memory science. 【Exam Forecast】 Set your exam date and FlashSnap calculates whether you're on pace to finish. Warnings appear if you're falling behind, so you can adjust early. 【Weak Cards Highlight】 The cards you keep missing are surfaced automatically. Focus your review where it matters. 【Vertical Writing Support】 For Japanese classical texts, Chinese, or right-to-left content. Reading order follows the natural top-to-bottom, right-to-left flow. Who is this for? ・Students preparing for exams ・Nursing & medical students learning terminology ・Language learners (vocabulary, classical texts) ・Anyone using paper red-sheet study method ・People who want to know "will I finish in time?" ・Commuters making use of small pockets of time Privacy first ・No account required ・Your photos and study data stay on your device ・Nothing is uploaded to any server ・No tracking for ads (npa=1)
Hirake
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Hirake is a focus app that locks the apps you open out of habit—social media, games, anything—and only unlocks them once you answer a quiz correctly. It combines Screen Time limits with real study, turning the time you mindlessly scroll into time you spend learning. ■ Key features ・Lock the apps you choose. To unlock them you have to answer a set number of quiz questions correctly. ・Includes question banks for certification exams, organized by year. ・Question banks are cached on your device, so you can answer and unlock even with no connection. ・After unlocking, you can use the app for the time you set. When it runs out, it locks again automatically. ・Check your daily quiz count and accuracy in the Stats tab. Your progress is clear at a glance. ・A minimal black-and-white design built to keep you focused, not distracted. ■ Great for you if you want to ・Cut down the time you spend on social media and video apps. ・Keep studying for certifications in spare moments. ・Stick to app limits that willpower alone never kept. ・Use it as a kind of parental control. ■ How it works (privacy) The locking is powered by Apple's Screen Time / Family Controls. We never collect a history of which apps you open. Only downloading question banks and account features work online; everything else is completed offline. More question banks are on the way. Rebuild your study habit and a healthier relationship with your phone, with Hirake.
Screenshots
Verdict
The clearest difference is in-app purchases: Hirake at none against FlashSnap's 1. Hirake also leads on update cadence (every 3 days vs every 3 weeks). FlashSnap's advantage is iOS requirement (17.0 vs 26.0). On price, 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
Both are free to download. FlashSnap sells 1 one-off in-app purchase. Hirake asks for nothing beyond the download.
FlashSnap ships an update every 3 weeks, Hirake every 3 days. The most recent releases landed on October 8, 2026 and October 5, 2026 respectively.
| Parameter | FlashSnap | Hirake |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 2 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | torankirite | Keisuke Yamashita |
In-app purchases
FlashSnap
- Premium$3.99
Hirake
No in-app purchases









