Comparison

Open2FA vs Chess Clock & Scoresheet

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

Head to head
About

Open2FA

Read full description

Open2FA is a simple, open source two-factor authentication application. Two-step verification helps you protect your accounts, even if attackers have your password. - All your codes are stored encrypted (AES-256). - Codes can be added via QR scan or manually. - FaceID and TouchID support. - Import and export encrypted file with codes. - You can store data as in iCloud and synchronize between devices, or store everything locally on your device. Open2FA - Two-factor authentication application with sync & AES-256 encryption. All your accounts are encrypted with AES-256. You can use iCloud to synchronize accounts between devices. There is import and export of encrypted file with all accounts. Or export the account to any other 2FA application.

About

Chess Clock & Scoresheet

Transform your device into a professional chess clock with advanced move recording. Supports voice, handwriting, and manual input for casual games to tournaments. Offers PGN export for analysis and a beautiful, customizable interface.

Highlights
  • Professional time controls with increment
  • Voice and handwriting move recognition
  • Manual move entry
  • Automatic PGN generation
  • Game history and statistics
  • Customizable themes and fonts
  • PGN export for analysis
Features
Read full description

Chess Clock & Scoresheet - is the best by test ;) Transform your iPhone into a professional chess clock with advanced move recording capabilities. Whether you're playing casual games or organizing tournaments, e4 Clock provides everything you need in a sleek, chess-themed interface. KEY FEATURES Professional Time Controls - Pre-configured presets: Bullet, Blitz, Rapid, and Classical - Custom time controls with increment support - Precise timing with tenths of a second in critical moments - Visual and audio alerts at 10 seconds - Multiple clock themes and font styles Smart Move Recording - Voice Recognition - Speak your moves naturally - Handwriting Recognition - Draw moves with your finger - Manual Entry - Type moves using keyboard - Auto-recording mode for hands-free operation - Automatic PGN generation Game Management - Complete game history with date and time - Detailed statistics and performance tracking - PGN export for analysis in chess engines - Share games via Lichess for computer analysis - Player customization with icons Beautiful Design - Modern chess-themed interface - Dark mode optimized - Multiple clock themes (Classic, Neon, Midnight, Forest, Sunset) - Customizable fonts and colors - Smooth animations and haptic feedback User-Friendly Features - Vertical and horizontal clock layouts - Shake to reset (with confirmation) - Player name customization - Move list with timestamps - One-tap game sharing PERFECT FOR - Casual players timing their games - Chess club organizers - Tournament directors - Players who want to analyze their games later - Anyone who appreciates beautiful, functional design GAME RECORDING MODES Choose your preferred input method: - Voice - Natural speech recognition for all chess notation - Handwriting - Draw moves like writing on paper - Keyboard - Traditional manual entry - None - Simple clock without move recording SUPPORTED TIME CONTROLS - Bullet: 1+0, 2+1 - Blitz: 3+0, 3+2, 5+0 - Rapid: 10+0, 10+5, 15+10 - Classical: 30+0, 30+20 - Custom: Set any time and increment EXPORT & ANALYSIS Export your games in standard PGN format for: - Analysis in chess engines like Stockfish - Import to chess.com or Lichess - Sharing with coaches or study groups - Building your personal game database FREE & PRIVACY FOCUSED - Completely free to use - No ads or subscriptions required - No account creation needed - All data stored locally on your device - Optional tip jar to support development Whether you're timing a quick blitz game with a friend or recording moves for serious analysis, e4 Clock provides a professional, distraction-free experience. Download now and elevate your chess experience! --- Support: apps@mkhasson97.com Website: www.mkhasson97.com

Screenshots

Open2FA4 screens
Chess Clock & Scoresheet4 screens

Verdict

The call

The clearest difference is in-app purchases: Open2FA at none against Chess Clock & Scoresheet's 4. Open2FA also leads on device support (4 vs 2) and iOS requirement (15.0 vs 18.6). Chess Clock & Scoresheet's advantage is update cadence (every 3 days vs every 3 weeks). On price and ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Chess Clock & Scoresheet sells 4 one-off in-app purchases. Open2FA asks for nothing beyond the download.

UpkeepUpdate frequency

Open2FA ships an update every 3 weeks, Chess Clock & Scoresheet every 3 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

Scorecard4 real differences · 5 level
Open2FA versus Chess Clock & Scoresheet: the parameters behind the verdict, then further details
ParameterOpen2FAChess Clock & Scoresheet
PriceFreeFree
Rating—5.0 (2 ratings) — better
Number of ratings—2 — better
Update frequencyEvery 3 weeksEvery 3 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad
Requires iOS15.0 — better18.6
Further details — not scored
Size11 MB15 MB
Age rating4+4+
DeveloperUladzislau VrubleuskiMohammad Alhasson

In-app purchases

None

Open2FA

No in-app purchases

4 purchases

Chess Clock & Scoresheet

One-time4
  • Good Move Tip$0.99
  • Great Move Tip$2.99
  • Best Move Tip$4.99
Show 1 more
  • Brilliant Move Tip$9.99

Questions

Is Open2FA free?
Open2FA is free to download, with no in-app purchases.
Is Chess Clock & Scoresheet free?
Chess Clock & Scoresheet is free to download, with in-app purchases available.
Do Open2FA or Chess Clock & Scoresheet have ads?
Neither Open2FA nor Chess Clock & Scoresheet shows ads.
Which is updated more often, Open2FA or Chess Clock & Scoresheet?
Open2FA ships an update every 3 weeks, and Chess Clock & Scoresheet every 3 days. Most recently, Open2FA was updated on October 25, 2026 and Chess Clock & Scoresheet on October 24, 2026.

Other comparisons