Go Clock vs Go Time
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
Go Clock
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The Go clock that speaks byo-yomi. Digits large enough to read across a goban, two halves facing opposite directions, and tap zones you can hit without looking down. Byoyomi Timer turns your iPhone or iPad into the clock your club has always needed. TIME SYSTEMS ⢠Japanese byo-yomi ā main time plus numbered periods that reset in full with every completed move ⢠Canadian overtime ā stone-based blocks such as 25 stones in 10 minutes, with a tappable stone counter ⢠Fischer bonus time ā with optional cap, the current AGA standard ⢠Ing overtime ā three purchasable periods, two penalty points each ⢠NHK format ā 30 seconds a move backed by ten one-minute reserves ⢠Progressive overtime ā the stone quota grows with each block ⢠Sudden death ā a plain absolute limit PRESETS FOR EVERY OCCASION Blitz, quick game, club standard, tournament, tournament Canadian, AGA bonus time, NHK style, professional game, title match and Ing official. Edit any of them, or build and name your own. A VOICE THAT COUNTS FOR YOU The last ten seconds of every period are announced aloud, so you can keep your eyes on the board. Available in English, German, Japanese, Korean and Mandarin ā chosen independently of the interface language. Prefer beeps, or silence? Both are one tap away. PASS BUTTONS Two consecutive passes stop the clock, exactly as the game does. TEACHING GAMES AND HANDICAPS Both clocks are fully independent. Different systems, different times, different period counts on each side ā a teacher can play three minutes against a student's forty. FOR REFEREES Time, periods and stones can all be corrected mid-game without restarting. WORKS ANYWHERE Fully offline, even in airplane mode. Runs on the Lock Screen as a Live Activity. No account, no ads, no tracking. Your settings and history stay on your device. ALSO AT HOME WITH Shogi, chess, Xiangqi, Gomoku and any other two-player board game ā byo-yomi is the Shogi standard, and Fischer and sudden death come from chess. FREE AND PRO The core clock ā byo-yomi, Canadian, Fischer, sudden death and per-move play ā stays free, without ads and without a time limit. Pro adds custom time systems, tournament presets, independent clocks for teaching games, fifteen further colour themes, sound packs, landscape mode, saved setups and game history. Available monthly, yearly, or as a one-time lifetime purchase. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://byoyomitimer.com/privacy/
Go Time
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Go Time is a game clock for people who play Go over the board ā and a camera that writes the game record for you. ā A CLOCK YOU SIT ACROSS FROM Put the phone between you. Top and bottom are the clocks for Black and White; press your side and your opponent's time starts. Big digits and a clear sound when time is nearly up. Pause, reset and the other controls appear only when you shake the phone, so a hand brushing the screen mid-game won't stop the clock. ā TIME, YOUR WAY ⢠Main time plus Japanese byo-yomi (periods Ć seconds) ⢠Fischer increment per move ⢠Different settings for Black and White when you play a handicap game ⢠Your last setup is remembered ā set it once and it is the same next time ā TWO PHONES, ONE CLOCK Prefer your own phone in front of you? Link two phones over Bluetooth. One creates the room, the other joins, and each player presses their own screen. The clock stays in sync ā no Wi-Fi or account needed. ā A PHOTO AFTER EVERY MOVE Have a spare phone? Put it on a stand over the board, connect it as the camera, and it takes a picture each time the clock is pressed. When the game ends, the day's photos are kept together as one set ā the whole game, move by move, without anyone touching a camera. ā PHOTOS BECOME A GAME RECORD Go Time reads the stones from those photos and builds a digital record. It only needs to find the one new stone in each shot, so it works under ordinary room lighting. Check each move, correct anything the camera got wrong, then replay the game or export it as SGF to study in any Go program. ā YOUR GAMES, KEPT ⢠Game list with search and favorites ⢠SGF import, including files from Korean, Japanese and Chinese Go sites (CP949, Shift_JIS, GBK ā¦) ⢠Move-by-move replay with the photo beside the board ⢠Share SGF files with a tap ā ADS AND SUBSCRIPTION The app is free with ads. An optional monthly subscription removes all ads. Payment is charged to your App Store account on purchase, and the subscription renews automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel it anytime in your account settings. Privacy Policy: https://4lovingyou.com/IOS/GoClock/Privacypolicy.html Terms of Use: https://4lovingyou.com/IOS/Terms.php?AppName=GoClock
Screenshots
Verdict
The clearest difference is ads: Go Clock at none against Go Time's shown. Go Time's advantage is iOS requirement (16.6 vs 26.0). On price, in-app purchases and device support there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Go Clock sells 3 in-app purchases, starting at $0.99 per month and Go Time sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | Go Clock | Go Time |
|---|---|---|
| Price | Free | Free |
| Update frequency | ā | Every 11 days |
| Ads | No ā better | Yes |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad ā better | iPhone |
| Requires iOS | 26.0 | 16.6 ā better |
| Further details ā not scored | ||
| Size | 14 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Vincent Grellert | JongHyun Lee |
In-app purchases
Go Clock
- Pro Monthly$0.991 Month
- Pro Yearly$8.991 Year
- Byoyomi Timer Pro$24.99
Go Time
- Remove Ads (Monthly)$0.991 Month
- Remove Ads (Yearly)$5.991 Year








