Flat Speedometer vs Doubling Back
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Flat Speedometer
This app provides a clear and simple way to view your current speed in various units. It offers a HUD mode for easy in-car viewing and a feature to track your top speed. Additional sensors like accelerometer and altimeter are available via in-app purchases.
- Multiple speed units (mph, km/h, knots, m/s)
- HUD mode for car use
- Top speed tracking
- Ad-free experience
- Accelerometer (in-app purchase)
- Altimeter (in-app purchase)
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Viewing your current speed has never been simpler. With a no-nonsense user interface, this app helps you concentrate on what you really are doing. Ad-free. Measure your speed in various units; miles per hour, km per hour, knots and meters per second. It includes a HUD-mode for easily viewing your speed in the car, without having to look down. A top speed mode helps you to keep track of your highest speed. Additionally, features such as accelerometer and altimeter are available as in-app purchases. Note: Not compatible with iPod Touch or iPad Wi-Fi only.
Doubling Back
This utility app allows you to precisely measure walking or running distances. You can start and stop tracking at any point, and it calculates the total distance covered only during the measured segments.
- Measure walking/running distance
- Start and stop measurement
- Calculate distance for selected portions
- iPhone and iPad compatible
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Doubling Back is an iPhone application for measuring your walking or running distance. What does Doubling Back offer that other pedometer apps do not? You can start and stop the measurement, and when you are finished, Doubling Back will show you the total distance for just the portions of the walk or run that you chose to measure.
Screenshots
Verdict
The clearest difference is rating: Flat Speedometer at 5.0 against Doubling Back's 3.7. Flat Speedometer also leads on update cadence (every 5 months vs every 13 months) and iOS requirement (9.0 vs 12.0). Doubling Back's advantage is in-app purchases (none vs 2) and ratings volume (3 vs 1). 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. Flat Speedometer sells 2 one-off in-app purchases. Doubling Back asks for nothing beyond the download.
Flat Speedometer holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 1 and 3 respectively.
Flat Speedometer ships an update every 5 months, Doubling Back every 13 months. The most recent releases landed on June 3, 2026 and September 18, 2026 respectively.
| Parameter | Flat Speedometer | Doubling Back |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 3.7 (3 ratings) |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 1 | 3 — better |
| Update frequency | Every 5 months — better | Every 13 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 32 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Axel Backlund | Terry NIGHTINGALE |
Customer experience
Flat Speedometer
Doubling Back
In-app purchases
Flat Speedometer
- Altitude$0.99
- Accelerometer$0.99
Doubling Back
No in-app purchases
