Ruler vs Infinite Ruler
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ruler
This utility app uses augmented reality to measure lengths and areas in the real world. Simply point your device's camera to get accurate measurements.
- Augmented reality measurement
- Measure length
- Measure area
- Simple interface
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A simple AR ruler for length and area measurements.
Infinite Ruler
Measure objects with precision using a digital ruler that extends beyond your screen. Choose fractional inch or centimeter units and calibrate for accuracy. Ideal for quick measurements when a physical tool isn't available.
- Fractional inch or centimeter measurement
- Adjustable precision (1/8, 1/16, 1/32 inch)
- Extendable ruler beyond screen length
- Customizable zero point
- Live distance markers
- On-device calibration
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Infinite Ruler The perfect app for when you've forgotten your tape measurer in the shed and want to know how tall your coffee mug is. Or maybe you need to settle an argument about how big your cat's head is. Measure in centimeters or fractional inches, then keep going beyond the length of one screen. • Choose 1/8, 1/16 or 1/32-inch precision • Move the zero point to start anywhere • Place A and B markers for a live distance • Continue measuring across as many ruler pages as you need • Put the scale on the left or right edge • Calibrate per phone for better real-world accuracy Your measurements and calibration values stay on your device.
Screenshots
Verdict
The clearest difference is rating: Infinite Ruler at 5.0 against Ruler's 4.5. Ruler's advantage is update cadence (every 3 months vs every 7 months) and device support (3 vs 1). On price, review sentiment, ratings volume and ads 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.
Infinite Ruler holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 4 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Ruler ships an update every 3 months, Infinite Ruler every 7 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.
| Parameter | Ruler | Infinite Ruler |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (4 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 4 — better | 2 |
| Update frequency | Every 3 months — better | Every 7 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 11.0 — better | 18.2 |
| Further details — not scored | ||
| Size | 22 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Play, Inc. | Eric Savoie |
Customer experience
Ruler
Infinite Ruler
In-app purchases
Ruler
No in-app purchases
Infinite Ruler
No in-app purchases
