お手伝いコイン vs CORChina
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
お手伝いコイン
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A fun way to support your child's chores at home — together as a family. [Main features] - Record chores with a single tap and earn coins - Register multiple children, each with a personal theme color - Customize the list of chores to match your home - Monthly history view with automatic allowance calculation - Monthly Retrospective screen — celebrate effort as a family - Backdate entries when you forget to log right away [What makes it different] - Simple, child-friendly design - Coin animations and sound effects to keep kids motivated - Fully offline — no internet connection required - All data stays on your device only Note for international users: Otetsudai Coin is designed primarily for Japanese-speaking families. The user interface is available in English, but the allowance amount is displayed in Japanese yen (¥) only. The app is well suited for Japanese families living abroad and bilingual households who want to maintain a Japanese-style chores-and-allowance routine. Help your child build great habits and bring your family closer — one chore at a time!
CORChina
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Point your camera at Chinese text and start learning. OCR China turns photos of Chinese text into study material: extract text with OCR, listen to it read aloud, and memorize words - all in one app. WHO IT IS FOR - Students wanting to study Chinese textbooks efficiently - Travelers and business professionals encountering Chinese on the go - Learners who find making word lists tedious - Anyone preparing for HSK or Chinese proficiency tests SCAN (OCR) Take a photo or pick one from your library, and the app turns Chinese text into digital text with high accuracy - both Simplified and Traditional. Turn textbooks, menus, signs, and packaging into study material. LISTEN AND LEARN (TEXT TO SPEECH) A native Chinese voice reads the text aloud while the current position is highlighted and scrolled automatically, so you can follow with your eyes and ears. Adjust the speed, pause and resume anytime, and choose from multiple voices. UNDERSTAND INSTANTLY (TRANSLATION) Show translations line by line with one tap. Results are saved, so you can review them offline later. BLANK MODE FOR MEMORIZATION Test your vocabulary by hiding random words. Tap hidden words to reveal answers, with progress tracked automatically. Build solid vocabulary through repeated practice. YOUR OWN STUDY LIST Scanned texts are saved to My List. Organize them with search and swipe actions, and build your own textbook. SAMPLE LESSONS INCLUDED Folk tales, business Chinese, daily conversation, and travel phrases - start learning right after installing. KEEP GOING EVERY DAY - Study reminder notifications (choose your preferred time) - Summary of your streak, study time, and words learned - Home screen widget to check progress at a glance Study data is stored only on your device and is never sent externally. All features are available for free with ad support. Take one photo of the Chinese around you. It is the first step toward reading Chinese every day.
Screenshots
Verdict
お手伝いコイン and CORChina are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Neither carries in-app purchases, so what you see is what you pay.
お手伝いコイン ships an update fortnightly, CORChina every 3 weeks. The most recent releases landed on November 8, 2026 and October 28, 2026 respectively.
| Parameter | お手伝いコイン | CORChina |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly — better | Every 3 weeks |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 18.5 | 17.6 — better |
| Further details — not scored | ||
| Size | 9 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Shinya Ema | BYNET |
In-app purchases
お手伝いコイン
No in-app purchases
CORChina
No in-app purchases









