Timegrapher vs Game Inventory
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Timegrapher
This application uses your device's microphone to measure the accuracy of mechanical watches. It detects ticking sounds to analyze beat rate, beat error, and amplitude, displaying results in real-time and over time.
- Detect BPH
- Measure Beat rate
- Measure Beat error
- Measure Amplitude
- Set Lift angle
- Real-time sound display
- Accuracy over time display
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What is Timegrapher? Timegrapher measures the accuracy of your mechanical watch. The app uses your device's microphone to detect the ticking of your watch. Features: Detect BPH Measure Beat rate Measure Beat error Measure Amplitude Set Lift angle Display beat noises real time (unlock, impulse and lock sounds) Display accuracy and beat error over time More features will be coming soon.
Game Inventory
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What's new in version 1.2: A NEW LOOK - Game Shelf has a new look: every game is a case with its platform label, its cover and a price sticker. - New type, paper-and-ink colors, and carefully tuned light and dark modes on every screen. - Sort with the tabs in your library and tap the selected one again to reverse the order. All your filters, views and manual order are still there. - Redesigned Insights: collection value, completion, most played and platforms at a glance. - A new icon, with light, dark and tinted versions. FASTER - The library loads instantly, with no waiting as you scroll, and covers no longer reload when you switch tabs. - Insights, Journal and Wishlist stay smooth with large collections. SCANNER - Every recognized title is matched automatically with the first result; if it's not the right one, change it. - Better at reading the spines on a whole shelf. PLAY JOURNAL - As you type a title, it suggests games from your library and links them for you. - Select several entries to mark them as completed or delete them at once. - When importing a text list, mark them all as completed with one tap. BYTE, YOUR GUIDE - The first time you open each screen, Byte explains how it works right on top of it. - Watch Byte's guides again any time in Settings › Help. ALSO - Review and merge repeated games in Settings › Collection. - A button to dismiss the keyboard on every screen. - Clearer Settings, and your SteamGridDB key is tested before it's saved. - If you still have the sample games from the first version, the app offers to remove them.
Screenshots
Verdict
The clearest difference is in-app purchases: Game Inventory at none against Timegrapher's 1. Game Inventory also leads on update cadence (every 8 days vs every 8 months). On price, ads, device support and iOS requirement 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. Timegrapher sells 1 one-off in-app purchase. Game Inventory asks for nothing beyond the download.
Timegrapher ships an update every 8 months, Game Inventory every 8 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | Timegrapher | Game Inventory |
|---|---|---|
| Price | Free | Free |
| Rating | 2.8 (46 ratings) — better | — |
| Positive reviews | 55.0% of reviews | — |
| Number of ratings | 46 — better | — |
| Update frequency | Every 8 months | Every 8 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 9 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | Attila Lelko | Alfonso Sanchez |
Bugs and requests
Timegrapher
Reported bugs
9 issues- Does not detect ticking
- Does not work at all
- Requires payment to function
- Inaccurate readings
- Unskippable pop-ups
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- App magnetizes watch
- Does not work after paying for premium
- Amplitude reported as 360
- Inconsistent measurements
Requested features
5 requests- Add dark mode
- Keep screen on during use
- Ability to save data per watch
- Improve visual design
- Lower price for Pro version
Game Inventory
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Timegrapher
- Unlock full$5.99
Game Inventory
No in-app purchases
Questions
Is Timegrapher free?
Is Game Inventory free?
Do Timegrapher or Game Inventory have ads?
Which is updated more often, Timegrapher or Game Inventory?
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