Cliff Timer vs DeFlock.me
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
Read full descriptionHide full description
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.
DeFlock.me
This app provides a platform to view and contribute to a publicly accessible map of mass surveillance devices. Users can explore existing data and add new information about these devices.
- View ALPR data
- Contribute ALPR data
- Open map of surveillance devices
- Publicly accessible data
Read full descriptionHide full description
View and contribute to an open map of public mass surveillance devices
Screenshots
Verdict
The clearest difference is in-app purchases: DeFlock.me at none against Cliff Timer's 3. DeFlock.me also leads on update cadence (fortnightly vs every 5 months) and ratings volume (291 vs 10). Cliff Timer's advantage is review sentiment (100% vs 83%) and rating (4.9 vs 4.7). 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
Both are free to download. Cliff Timer sells 3 in-app purchases, starting at $0.99 per month. DeFlock.me asks for nothing beyond the download.
Cliff Timer holds the better App Store score, 4.9 against 4.7. That said, the two scores are not equally well evidenced: DeFlock.me has 291 ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 100% of Cliff Timer's written reviews are positive against 83% of DeFlock.me's.
Cliff Timer ships an update every 5 months, DeFlock.me fortnightly. The most recent releases landed on October 2, 2026 and October 24, 2026 respectively.
| Parameter | Cliff Timer | DeFlock.me |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (10 ratings) — better | 4.7 (291 ratings) |
| Positive reviews | 100.0% of reviews — better | 83.1% of reviews |
| Number of ratings | 10 | 291 — better |
| Update frequency | Every 5 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 16 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Frank Schipani | Tech BS LLC |
Customer experience
Cliff Timer
DeFlock.me
In-app purchases
Cliff Timer
- Monthly3 Days trial$0.991 Month
- Yearly$5.991 Year
- Lightning Distance Access$1.99
DeFlock.me
No in-app purchases
Questions
Is Cliff Timer free?
Is DeFlock.me free?
Which has better reviews, Cliff Timer or DeFlock.me?
Do Cliff Timer or DeFlock.me have ads?
Which is updated more often, Cliff Timer or DeFlock.me?
Other comparisons
