GPS Measure vs WetRuler
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GPS Measure
Measure routes, time, speed, distance, direction, and altitude using GPS. Customize units and targets to track the speed of various vehicles, including airplanes and ships. Note that GPS functionality is limited in tunnels or underground.
- Route tracking on map
- Time measurement
- Speed tracking
- Distance measurement
- Direction tracking
- Altitude measurement
- Customizable units
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What can be measured with this application: - Route (displayed on map) - Time - Speed - Distance - Direction - Altitude etc. Set your comfortable units and targets from setting page, and let's measure the speed of various vehicles! You can measure speed of airplanes and ships as well. Note: - Since this application works with GPS, you cannot use this in tunnel or underground environments. - Do not operate this application while driving, because it is dangerous. - Application developer is not responsible for any disadvantages such as accidents and injuries while using this application. Please be sure to use this at your own risk.
WetRuler
This augmented reality application measures and weighs fish using your device's camera. Simply place your catch on a surface, select the fish type, and the app will estimate its length and approximate weight. It also records a photo of your catch with the measurements displayed.
- AR measurement grid
- Fish type selection
- Approximate weight and length calculation
- Records catch photos with data
- Works in water for catch and release
- Supports large fish up to 10 feet
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WetRuler is an AR app that measures and weighs your fish all without rulers or scales. Select the type of fish that you've caught from a list of common ones caught in Alaska. Place the fish on a horizontal surface and a AR screen grid will appear. Choose the the head to tail length and algorithms will generate length and approximate weight. --most common Alaskan fish included --records weight in pounds and length in inches --you don't have to touch the fish! --able to weigh halibut up to 10 feet in length! --records photo of your catch with weight and length displayed --works well in water for catch and release
Screenshots
Verdict
The clearest difference is update cadence: GPS Measure at every 3 months against WetRuler's every 43 months. GPS Measure also leads on ratings volume (103 vs 1) and iOS requirement (11.0 vs 15.5). WetRuler's advantage is rating (5.0 vs 4.7). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.
WetRuler holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: GPS Measure has 103 ratings behind it against 1, so its average is the more settled of the two.
GPS Measure ships an update every 3 months, WetRuler every 43 months. Both last shipped on November 2, 2026.
| Parameter | GPS Measure | WetRuler |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (103 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 74.1% of reviews | — |
| Number of ratings | 103 — better | 1 |
| Update frequency | Every 3 months — better | Every 43 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 15.5 |
| Further details — not scored | ||
| Size | 8 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Shota Utsumi | Robert Werner |
Customer experience
GPS Measure
WetRuler
In-app purchases
GPS Measure
No in-app purchases
WetRuler
No in-app purchases
Questions
Is GPS Measure free?
Is WetRuler free?
Which has better reviews, GPS Measure or WetRuler?
Do GPS Measure or WetRuler have ads?
Which is updated more often, GPS Measure or WetRuler?
Other comparisons
