WetRuler vs Cetvel Ruler
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
Cetvel Ruler
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Cetvel Pro is a practical precision tool for everyday measuring. FEATURES • 50 cm ruler with clear centimeter and inch scales • Draggable start/end markers for quick distance checks • Fine calibration for better real-world accuracy • Separate calibration support for portrait and landscape use • Built-in converter (cm ↔ inch) • Dual-axis angle level for horizontal and vertical alignment • Fast, clean interface designed for one-hand use USE CASES • Home, office, school, workshop, and DIY tasks • Quick alignment checks and small object measurements • Daily measurements without extra hardware PRIVACY Cetvel Pro does not require an account and does not collect personal data. Calibration and preferences are stored on-device.
Screenshots
Verdict
The clearest difference is update cadence: Cetvel Ruler at fortnightly against WetRuler's every 43 months. On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
WetRuler ships an update every 43 months, Cetvel Ruler fortnightly. The most recent releases landed on November 2, 2026 and October 25, 2026 respectively.
| Parameter | WetRuler | Cetvel Ruler |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 43 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.5 | 15.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Robert Werner | Ozkan Kayhan |
In-app purchases
WetRuler
No in-app purchases
Cetvel Ruler
No in-app purchases









