Comparison

Notation Master vs Chrono flip timer

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

Head to head
About

Notation Master

Effortlessly convert handwritten chess notation into digital PGN files using AI. Upload your games directly to platforms like Chess.com and Lichess.org for easy analysis and sharing.

Highlights
  • Instant chess notation scanning
  • AI-powered PGN conversion
  • Direct upload to Chess.com & Lichess.org
  • Save and share game records
  • Supports tournament and casual games
Read full description

From Paper to PGN – Instantly! Tired of manually entering your chess games? Notation Master is the ultimate tool for chess players, coaches, and tournament participants! Simply take a photo of your notation sheet, and our advanced AI will convert it into a digital PGN file. You can then send it directly to your Chess.com or Lichess.org account, making it easy to review, analyze, and improve your gameplay. Key Features: Instant Chess Notation Scanning – Snap a photo and let AI do the rest! PGN Conversion – Get your chess games in digital PGN format. Direct Upload – Send games seamlessly to Chess.com & Lichess.org. Accurate & Fast – Works for tournament sheets and casual game records. Save & Share – Store your games or share with friends and coaches. Perfect for: Chess players & enthusiasts Coaches analyzing student games Tournament players keeping digital records Anyone who wants to digitize and store their chess matches Download Notation Master today and bring your chess games to the digital world with one click!

About

Chrono flip timer

Features
Read full description

Chrono flip timer brings count-up and countdown timing together in a clean, classic flip-clock interface. Large, readable digits and smooth flip animations help you stay focused on every passing second. COUNT UP & COUNT DOWN • Count up starts automatically after a 3-2-1 countdown (optional) — perfect for workouts, talks, meetings, and study sessions • Record laps during count up and copy them all after pausing • Tap or drag the flip digits to set a countdown • Use quick presets for 5, 15, 25, or 45 minutes, or set hours, minutes, and seconds precisely • Add a label to your countdown (like Study or Break) and see it on the Lock Screen, in notifications, and on the start screen • Timers continue across app launches until you pause or reset them LOCK SCREEN & DYNAMIC ISLAND • Follow the remaining time and progress of a countdown in a Live Activity on the Lock Screen and in the Dynamic Island — no need to open the app • Get a notification when time is up, even when your iPhone is locked or you are in another app MADE FOR FOCUS • View an extra-large fullscreen clock in landscape • Keep the screen awake while a timer is running • Get sound, vibration, and a celebration animation when time is up • Double-tap an empty area to hear the current time • Automatically remember your last countdown duration YOUR TIMER, YOUR WAY • Two interface styles: clean Standard, or sticker-like Hand-drawn with hand-lettered flip digits and a full-screen 3-2-1 and finish screen • Choose Classic Black, High Contrast, or Stage flip themes in the Standard style • Choose light, dark, or system appearance; the app icon follows Dark Mode, with Dark and Sun alternate icons • Use multiple interface languages with matching voice announcements • Designed for iPhone, iPad, and Mac • No ads, no tracking, and no personal data collection Whether you are focusing with a Pomodoro session, cooking, training, presenting, or running a meeting, Chrono flip timer keeps time clear and easy to see.

Screenshots

Notation Master4 screens
Chrono flip timer4 screens

Verdict

The call

The clearest difference is in-app purchases: Chrono flip timer at none against Notation Master's 2. Chrono flip timer also leads on update cadence (every 2 days vs weekly). Notation Master's advantage is iOS requirement (13.0 vs 17.0). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Notation Master sells 2 one-off in-app purchases. Chrono flip timer asks for nothing beyond the download.

UpkeepUpdate frequency

Notation Master ships an update weekly, Chrono flip timer every 2 days. The most recent releases landed on October 2, 2026 and October 10, 2026 respectively.

Scorecard3 real differences · 6 level
Notation Master versus Chrono flip timer: the parameters behind the verdict, then further details
ParameterNotation MasterChrono flip timer
PriceFreeFree
Rating3.7 (3 ratings) — better—
Number of ratings3 — better—
Update frequencyWeeklyEvery 2 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, Mac — better
Requires iOS13.0 — better17.0
Further details — not scored
Size38 MB6 MB
Age rating4+4+
DeveloperJoseph Lee书玉 简

In-app purchases

2 purchases

Notation Master

One-time2
  • 10 Credits$0.99
  • 25 Credits$1.99
None

Chrono flip timer

No in-app purchases

Questions

Is Notation Master free?
Notation Master is free to download, with in-app purchases available.
Is Chrono flip timer free?
Chrono flip timer is free to download, with no in-app purchases.
Do Notation Master or Chrono flip timer have ads?
Neither Notation Master nor Chrono flip timer shows ads.
Which is updated more often, Notation Master or Chrono flip timer?
Notation Master ships an update weekly, and Chrono flip timer every 2 days. Most recently, Notation Master was updated on October 2, 2026 and Chrono flip timer on October 10, 2026.

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