Flag: Chess Clock & Timer
Fischer · Bronstein · Delay
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Phone flat between you. Top half flips so your opponent reads it right-side up. Tap to switch. The chess clock that finally feels like sitting across the board.
A real chess clock, built for real chess players.
Most apps stop at Fischer, swap your color every turn, and put Bronstein behind a paywall. Flag does all of it, without a
subscription.
FIVE INCREMENT MODES
• Fischer — increment added after every move. OTB and online standard.
• Delay (USCF) — clock pauses for a fixed delay before counting down.
• Bronstein — used time returned at end of move, capped at the increment.
• Hourglass — time flows from one side to the other.
• Byo-yomi — Japanese overtime periods after main time runs out.
DISPLAY & TAP
• Split or Color display modes.
• Tap your own half (chess tradition) or tap anywhere — your choice.
• Persistent White/Black sides — they don't swap based on turn.
ALSO IN FLAG
• Full game history with per-move timing
• Stats dashboard — averages, move-time charts, time-trouble heatmap
• Pause, resign, agree-draw shortcuts
• Customizable haptics and sounds
• Custom time-control presets — bullet, blitz, rapid, classical, byo-yomi
PRO — ONE-TIME UNLOCK. NO SUBSCRIPTION.
7-day trial of every Pro feature. After that, a one-time unlock keeps everything forever. No subscription. No ads. Pay
once, own it.
Pro adds Bronstein, Hourglass, and Byo-yomi modes; 12+ premium clock themes (Wood, Tournament felt, Brass DGT, Carrara
Marble, Library, Fischer 72, Havana, Zen, Frost, Streamer, Neon and more); unlimited custom presets; and premium switch
sounds.
PRIVACY
Privacy: https://bountyapps.com/flag/privacy.html
Terms: https://bountyapps.com/flag/terms.html
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Minor bug fixes
The developer, Anton Voropaiev, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Bounty LLC
- Size
- 54 MB
- Category
- Board
- Compatibility
Requires iOS 18.6 or later.
- iPhone
Requires iOS 18.6 or later. - Mac
Requires macOS 15.6 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.6 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Flag Pro $4.99
- Copyright
- © Bounty LLC