Comparison

Go Clock Duo vs Ply

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Go Clock Duo

Features
Read full description

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 — main time plus numbered periods that reset in full with every completed move • Canadian overtime — stone-based blocks such as 25 stones in 10 minutes, with a tappable stone counter • Fischer bonus time — with optional cap, the current AGA standard • Ing overtime — three purchasable periods, two penalty points each • NHK format — 30 seconds a move backed by ten one-minute reserves • Progressive overtime — the stone quota grows with each block • Sudden death — 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 — 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 — 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 — byo-yomi is the Shogi standard, and Fischer and sudden death come from chess. FREE AND PRO The core clock — byo-yomi, Canadian, Fischer, sudden death and per-move play — 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/

About

Ply

Features
Read full description

Ply is the chess clock that never misses a tap. Open it, tap a time, and play: two taps to a running game. THE CLOCK • The switch happens the moment your finger lands, not when it lifts. Slap the whole half of the screen, with any number of fingers. • The time never drifts and never jumps: every move is measured on the phone's own clock, not counted in ticks. • The side to move is bright. The side that waits is dim. You can see whose turn it is from across the room. • At 10 seconds the clock turns red. Warnings at one minute, 30 and 10 seconds, a beep for each of the last 5, and an alarm when a flag falls. • A click on every move, made so that fast bullet taps do not cut it off. Loud Sounds for a noisy room. A light tap of the phone on each switch. • One small pause button in the middle, away from your hand. Turn on Hold to Pause, and a stray finger in blitz does not stop the game. • Add or take away time for a penalty, take back the last tap, restart, or end the game. • Upright, or on its side beside the board. On iPad too. TIME CONTROLS • Bullet, blitz, rapid and classical presets: 1+0, 2+1, 3+0, 3+2, 5+0, 5+3, 10+0, 15+10, 30+0. • Your own control: minutes and seconds, an increment, and its kind: Fischer, Bronstein or US delay. Save it as a tile. • Time odds: give one player more time than the other. • Keep Running After a Flag, for US Chess rules. AFTER THE GAME • A summary when a game ends: the time each side used, the average and the longest move, and a chart of the seconds for each move. • Your games stay on your phone. No account, no ads, no tracking. PLY PRO • Board games for 2 to 8 players: names and colors, one tap passes the turn. Time bank, time per turn, or count up. For Catan, Scrabble, Rummikub, backgammon, wargames and more. • Byo-yomi for Go and shogi: main time, then periods. • The FIDE tournament control: 90 minutes for 40 moves, then 30 more, with 30 seconds a move. • A mechanical clock face in 3D: hands, a button that goes down, and a flag that falls. • The OLED Black clock theme, wood-and-bell sounds, and a voice that says "one minute", "thirty seconds" and "ten seconds". • Every game in charts: games by week and by weekday, what you play, how your games end, and where your time goes. Ply speaks 58 languages. Ply Pro is a weekly subscription, with a free trial for new subscribers, or a one-time lifetime purchase. Payment is charged to your Apple Account at confirmation of purchase. The subscription renews each week unless you cancel at least 24 hours before the end of the current period. You can manage or cancel it in your account settings on the App Store. Privacy Policy: https://theflynch.com/e8c62569-7aa8-4720-8e43-b24e1833b75d/ply/privacy-policy.html Terms of Use: https://theflynch.com/e8c62569-7aa8-4720-8e43-b24e1833b75d/ply/terms-of-service.html

Screenshots

Go Clock Duo4 screens
Ply4 screens

Verdict

The call

The clearest difference is iOS requirement: Ply at 16.4 against Go Clock Duo's 26.0. On price, ads, 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

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Go Clock Duo sells 3 in-app purchases, starting at $0.99 per month and Ply sells 2 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference Ā· 5 level
Go Clock Duo versus Ply: the parameters behind the verdict, then further details
ParameterGo Clock DuoPly
PriceFreeFree
Update frequencyEvery 2 months—
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.016.4 — better
Further details — not scored
Size14 MB51 MB
Age rating4++4
DeveloperVincent GrellertFlynch MB

In-app purchases

3 purchases

Go Clock Duo

Subscriptions2
  • Pro Monthly$0.991 Month
  • Pro Yearly$8.991 Year
One-time1
  • Byoyomi Timer Pro$24.99
2 purchases

Ply

Subscriptions1
  • Ply Pro Weekly7 Days trial$3.997 Days
One-time1
  • Ply Pro Lifetime$29.99

Questions

Is Go Clock Duo free?
Go Clock Duo is free to download, with in-app purchases available.
Is Ply free?
Ply is free to download, with in-app purchases available.
Do Go Clock Duo or Ply have ads?
Neither Go Clock Duo nor Ply shows ads.

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