Kakushi vs Answer Hider
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Kakushi
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Kakushi turns any photo into a reusable study sheet. Paper red sheets only work on specially printed text. Highlighter pens are permanent and ruin your notes. Kakushi solves both: photograph any page, notebook, or textbook, brush thick black marks over the words you want to memorize, and tap each mark to reveal the answer. Tap again to hide it and test yourself once more — as many times as you like. No typing. No setup. Just snap, brush, and tap. WHY KAKUSHI - Works on anything: your own notes, printed handouts, photos, textbooks - Precise tap to reveal: open one answer at a time, not the whole page - Freehand strokes, rectangles, and lines to cover exactly what you need - Reveal all or hide all in a single tap for a full run-through - Organize sheets into folders like "English Quiz" or "History Dates" - Gentle review reminders so you look again before you forget HOW IT WORKS 1. Take a photo or pick one from your library 2. Brush black marks over what you want to memorize 3. Open Study mode and tap each mark to check your answer KAKUSHI PRO Create unlimited study sheets with no ads, as a monthly plan or a one-time lifetime purchase. Free members can create up to five new sheets each month; editing and reviewing are always unlimited. Privacy: https://kazusa703.github.io/privacy.html Terms: https://kazusa703.github.io/terms.html Support: https://kazusa703.github.io/support.html
Answer Hider
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Answer Hider is a simple study app that helps you organize exam materials, hide answers in study photos, and review them before a test. Add photos of worksheets, notes, printed handouts, vocabulary lists, or problem sets. Then hide the answers or key terms you want to memorize. Tap to reveal the answer, mark it as difficult or correct, and focus your review on what you need to remember. ■ Recommended for ・Students who study from printed worksheets ・Hiding answers and reviewing them like flashcards ・Organizing range sheets and study photos separately ・Preparing for midterms, finals, and regular exams ・Studying from notes, handouts, and problem sets ・Keeping exam materials organized by subject or course ■ Main features ・Organize by exam period ・Organize by subject or course ・Separate range sheets from study photos ・Manually hide answers in photos ・Tap to reveal hidden answers ・Mark answers as difficult, correct, or removed ・Review only difficult items ・Modes for school and college use ・No ads, so you can stay focused ■ Free plan The core hide-and-review flow is available for free. The free plan includes up to 30 photos and 1 exam period. ■ Premium Premium unlocks unlimited photos and unlimited exam periods. Choose a 30-day pass, a 60-day pass, or Lifetime Pro. 30-Day and 60-Day Passes are non-renewing and do not auto-renew. Lifetime Pro is a one-time purchase. ■ Privacy This app does not show ads. It does not use external AI or automatic answer generation. Your study photos and exam materials are not uploaded to an external server. ■ Terms of Use (EULA) https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ■ Privacy Policy https://docs.google.com/document/d/e/2PACX-1vQM37OvTcHoNAevOTIl5I1Tt3hE3vktVhNAJ63hYVhcMYRbg3_ItqM2wfe1CZg8X_xACNQheT7HYuDl/pub Study from your own photos. Hide answers, reveal them, and review what you missed.
Screenshots
Verdict
The clearest difference is ads: Answer Hider at none against Kakushi's shown. Answer Hider also leads on iOS requirement (17.0 vs 26.0). On price, in-app purchases 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. Kakushi sells 1 one-off in-app purchase and Answer Hider sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
| Parameter | Kakushi | Answer Hider |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | — |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 26.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 11 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | atsuko imai | Yuya Takamoto |
In-app purchases
Kakushi
- Kakushi Pro Lifetime$9.99
Answer Hider
- 30-Day Pass$1.99
- 60-Day Pass$3.99
- Lifetime Pro$11.99









