Cliff Timer vs AR Measure + Notes
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cliff Timer
Calculate the height of lightning strikes using a simple stopwatch and physics formulas. Measure the time between seeing lightning and hearing thunder to determine distance and height.
- Lightning height calculation
- Lightning distance calculation
- Uses physics formulas
- Simple stopwatch interface
- Real-time results
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Cliff Timer is a simple and powerful app that lets you measure real-world distances using just a stopwatch and basic physics. By timing how long it takes for an object to fall, you can estimate the height of cliffs and other drops, or measure how far away a storm is by counting the seconds between lightning and thunder. Designed to be easy to use while still based on real equations, Cliff Timer turns quick observations into meaningful measurements, making it perfect for outdoor exploration, learning, or satisfying your curiosity about the world around you. This app uses the formula for height, h=12⋅g⋅t^2, and the formula for lightning, d=t/5. Start the stopwatch, and the app will give you the information.
AR Measure + Notes
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Measure real-world objects quickly and accurately using your iPhone’s camera and AR technology. Capture distances, save snapshots with measurements, add notes, and review past records — perfect for everyday tasks, DIY projects, furniture planning, package checking, and more. * Features • AR Distance Measurement — Point your camera and measure instantly in cm, mm, or inches. • Snapshot Saving — Save photos with all distances included, plus automatic total distance calculation. • Organized Notes — Add titles like “Bookshelf height” and keep your measurements neatly stored. • History View — Browse past measurements with images, totals, and individual values. • Works Offline — Measurement and history viewing work without an internet connection. * FAQ Is the app free? Yes. The app is free to download and use. A small banner ad is shown at the bottom, and you can remove ads with a one-time purchase. How do I save measurements? After taking a measurement, tap the save button to add a title and store it with a snapshot. Which units can I use? You can switch between millimeters, centimeters, and inches in the settings. Can I edit past records? Saved measurements can be viewed or deleted at any time from the history screen. Who is this app for? Anyone who needs quick, simple, and accurate measurements — including homeowners, DIY users, students, movers, and shoppers.
Screenshots
Verdict
Cliff Timer and AR Measure + Notes are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Cliff Timer sells 3 in-app purchases, starting at $0.99 per month and AR Measure + Notes sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
| Parameter | Cliff Timer | AR Measure + Notes |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (10 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 10 — better | — |
| Update frequency | Every 5 months | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 — better | 18.4 |
| Further details — not scored | ||
| Size | 16 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Frank Schipani | Jun Yamabe |
In-app purchases
Cliff Timer
- Monthly3 Days trial$0.991 Month
- Yearly$5.991 Year
- Lightning Distance Access$1.99
AR Measure + Notes
- Remove Ads$2.99









