gravity clock vs WoolWallet
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
gravity clock
Experience time's passage through a visually stunning clock that destroys and reconstructs its face. Numbers break off and fall, creating a dynamic and beautiful display of seconds ticking by.
- Realistic gravity/physics simulation
- Digital and analog modes
- Customizable gravity strength and direction
- Night mode
- Time speaking functionality
- Customizable colors
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Watching the time pass has never been so beautiful! Gravity Clock visualizes the passage of time by the permanent destruction and reconstruction of the clock-face. Every second the hand breaks numbers out of the dial and lets them drop to the floor where they get buried by the following numbers and eventually wither away to make room for the endless succession of time. Watch the video here: http://joerg.piringer.net/gravityclock Features: - realistic gravity/physics simulation, numbers fall as if they were real objects - digital and analog mode - control strength and direction of gravity with presets or customize them - night mode with reduced brightness - can speak the time every minute, every 5 minutes etc. - change colors with presets or customize them - universal app supports iPhone/iPod touch and iPad in all orientations, resolutions and window sizes - looks perfect in an iPhone/iPad-dock
WoolWallet
Keep track of your yarn stash with this digital organizer. Catalog your skeins, colors, and quantities to avoid buying duplicates and always know what you have on hand for your next crafting project.
- Digital yarn inventory
- Track skeins, colors, and quantities
- Avoid duplicate purchases
- Organize crafting supplies
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Calling all crafters! WoolWallet is the knitting and crochet companion for your stash, patterns, and works in progress. Log every skein with photos, dyer, weight, yardage, fiber content, and colorways. Track sock sets, minis, partials, and leftover grams. Archive what you’re not using, and find anything fast with search and filters. Point your camera at a yarn label and WoolWallet reads the details: name, weight, yardage, composition, and more. Checking a label outside of the home? See if it’s already in your stash before you buy, then add skeins or start a new entry. Save knit, crochet, and Tunisian patterns with yarn requirements, needles and hooks, techniques, and notions. Import PDFs from Files or the web, scan paper patterns, or fill the form from a photo. Read patterns in-app with remembered page and an optional keep-awake screen. Queue ideas, track WIPs, and celebrate finishes. Pair each color with yarn from your stash, keep project photos and notes, and use multiple named row counters—plus a history chart of your daily progress. When you finish, optionally deduct yarn so your stash stays honest. See which stashed yarns fit a pattern’s requirements, and which patterns a yarn could make. Star favorite pairings so starting the next project is one tap away. A dashboard that tells you what’s in the works, what’s queued, finished this month, stash by weight, and more—so you always know where things stand. Export a polished summary image for any yarn or project—perfect for Messages, Instagram, or showing off your latest FO. Built for knitters and crocheters who love their stash as much as their projects.
Screenshots
Verdict
The clearest difference is price: WoolWallet at Free against gravity clock's $0.99. WoolWallet also leads on rating (5.0 vs 4.8) and review sentiment (100% vs 89%). gravity clock's advantage is update cadence (every 2 months vs every 11 months) and ratings volume (18 vs 2). On ads, in-app purchases 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
WoolWallet is free to download; gravity clock costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
WoolWallet holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: gravity clock has 18 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 89% of gravity clock's written reviews are positive against 100% of WoolWallet's.
gravity clock ships an update every 2 months, WoolWallet every 11 months. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.
| Parameter | gravity clock | WoolWallet |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.8 (18 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 88.8% of reviews | 100.0% of reviews — better |
| Number of ratings | 18 — better | 2 |
| Update frequency | Every 2 months — better | Every 11 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 10.3 — better | 17.2 |
| Further details — not scored | ||
| Size | 6 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | joerg piringer | Logan Werner |
Customer experience
gravity clock
WoolWallet
Bugs and requests
gravity clock
Reported bugs
2 issues- Crashes at midnight
- Twitter integration not working
Requested features
5 requests- Add Arabic-Indic numerals
- Restore alarm function
- Implement 64-bit support for iOS 11
- Add countdown timer
- Allow setting clock as device screensaver
WoolWallet
Not enough reviews yet to summarise bugs or requests.
In-app purchases
gravity clock
No in-app purchases
WoolWallet
No in-app purchases





