Aion Chess Clock vs Flag
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Aion Chess Clock
This app provides a precise and elegant digital timer for chess games of all time controls. It features customizable presets, increment support, and a clear display with low-time warnings. Enjoy a distraction-free experience with haptic feedback and optional controller support.
- Multiple time controls (Blitz, Rapid, Classical)
- Customizable presets
- Increment support (Fischer timing)
- Move counter
- Dark interface
- Low-time warnings
- Haptic feedback
- Bluetooth controller support
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AION — Where Every Second Matters Whether you're battling in a tournament hall or facing off with friends, Aion delivers the precision and elegance your game deserves. BUILT FOR CHAMPIONS • Blitz, Rapid, Classical — all your favorite time controls, ready to go • Custom presets for your unique play style • Increment support (Fischer timing) • Move counter to track your progress DESIGNED TO IMPRESS • Stunning dark interface that looks incredible in any lighting • Buttery-smooth animations • Crystal-clear display — see your time at a glance • Low-time warnings so you never lose on time again PLAY YOUR WAY • Haptic feedback you can feel • Sound effects that don't distract • Auto table mode — lay your phone flat and play • Works with Bluetooth controllers for hands-free operation No ads. No distractions. Just you, your opponent, and the ticking clock. Download Aion. Time your moves. Claim your victory.
Flag
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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
Screenshots
Verdict
The clearest difference is in-app purchases: Aion Chess Clock at none against Flag's 1. Aion Chess Clock also leads on iOS requirement (16.0 vs 18.6). On price, ads 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. Flag sells 1 one-off in-app purchase. Aion Chess Clock asks for nothing beyond the download.
| Parameter | Aion Chess Clock | Flag |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | — | Every 2 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone | iPhone |
| Requires iOS | 16.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 1 MB | 51 MB |
| Age rating | 4+ | 4+ |
| Developer | Jorge Garcia | Anton Voropaiev |
In-app purchases
Aion Chess Clock
No in-app purchases
Flag
- Flag Pro$4.99









