ZaShare vs ChessCoach
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ZaShare
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「雜學校」(ZA share)源自「Share from Z to A」,意味著由下而上的分享學習,推廣約翰.杜威(John Dewey)所闡述的「教育即生活,學校即社會」的教育理念,希望社會就是一所大型學校,所有人都可以在這裡終生學習,永遠追求成長。2014年成立於台北,目前是臺灣最大的教育新創平台,致力於集結與賦能社會的各式創新,推動實現終身教育的變革。成立以來協助台灣超過3,000個新創單位與體制內外文教工作者實現他們的目標,累計超過50萬名參與者以及線上破億的網路聲量,持續透過群眾的創新能量創造最大化的社會影響力加速變革的發生。雜學校致力於培育在熱情裡工作的人才,透過適性(找自己)、適才(雜學)到適所(趨勢工作)三大關鍵核心,讓每個人找到自己,學習任何你喜歡的事物,並能夠找到自己在世界上的位置。 特色: 1. 完整MQ測驗與報告 2. 訂閱制線上課程(包括MQ課程與六大類核心課程) 3. 線上媒體內容精選 4. 線下空間與年度大展 5. 職涯媒合功能:線上MQ測驗並獲得完整報告簡版MQ測驗解讀訂閱制內容觀看與閱讀職涯媒合會快報
ChessCoach
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Learn chess step by step, right on your phone. ChessCoach is a chess course that opens on Today's Learning. Every day it lays out a short plan (a daily puzzle, one lesson, a tactics set and a practice game) and tracks your progress by chapter and by theme. ■ 20-lesson curriculum Five chapters: Basics, Opening principles, Tactical motifs, Intermediate, Endgame basics. New lessons end with exercises on the board, checked move by move by the rules engine, with an explanation after every answer. · Control the centre, develop your pieces, castle · Count attackers and defenders, knight forks, queen double attacks · Mate with queen and rook, promotion and the rule of the square, the opposition ■ Game review that explains After a game against the on-device AI, the app picks your biggest mistakes and says why in plain words: a piece left undefended, a missed checkmate, a missed fork. It links to the lesson that teaches the idea, and each mistake becomes a puzzle you can retry. ■ 1,200 puzzles 1,000 checkmate puzzles (mate in one, back-rank mates) and 200 tactics puzzles (forks, pins, skewers, discovered attacks). Every tactics puzzle was checked by the on-device engine to have one clear best move. A daily puzzle and streak. Accuracy per theme shows your weak spots and suggests a lesson to review. ■ Practice games An AI from Elo 400 to 2400, unlimited free hints, move-by-move replay and PGN export. ■ Opening library 15 openings replayed move by move, with the idea behind each. ■ No account, all on your device No server, no login. Lessons, puzzles and the AI all run on your device, even in airplane mode. Your progress never leaves your phone. ■ 5 languages English, Korean, Japanese, Chinese (Simplified and Traditional). ■ Free and the Full Course Free: the first 5 lessons (Basics chapter), Today's Learning, 1,000 mate puzzles, the daily puzzle, the first 5 puzzles of each tactics theme, AI games with hints and review, the opening library and My Progress. ChessCoach Full Course (one-time purchase, not a subscription, Family Sharing supported): all 20 lessons (opening principles, tactical motifs, intermediate, endgame basics), all 200 tactics puzzles, and no ads. If you have used ChessCoach since version 1.0, the 10 lessons you already had stay free, and your saved games, puzzles and lessons carry over. ■ About ads Ads appear only when you open the app: at most 3 times a day, at least 4 hours apart. Never during a lesson, a puzzle, a game or a review, and never on the first launch after installing. No ads after buying the Full Course. To show ads, Google AdMob processes the device information it needs (no personalised ads). Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://inphilchoi.github.io/chesscoach-privacy/
Screenshots
Verdict
The clearest difference is ads: ZaShare at none against ChessCoach's shown. ZaShare also leads on iOS requirement (12.0 vs 15.0). ChessCoach's advantage is update cadence (every 4 days vs every 3 weeks). 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. Neither carries in-app purchases, so what you see is what you pay.
ZaShare ships an update every 3 weeks, ChessCoach every 4 days. The most recent releases landed on October 19, 2026 and October 24, 2026 respectively.
| Parameter | ZaShare | ChessCoach |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Every 4 days — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 203 MB | 21 MB |
| Age rating | 17+ | 4+ |
| Developer | Equalearning | INPHIL CHOI |
In-app purchases
ZaShare
No in-app purchases
ChessCoach
No in-app purchases









