Ruler App vs Infinite Ruler
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ruler App
Transform your iPhone or Apple Watch into a precise measuring tool. Easily switch between imperial and metric units and adjust the ruler's height for direct comparisons. Customize your experience with different color schemes.
- Imperial and metric scale switching
- Adjustable ruler height
- Color scheme customization
- Apple Watch compatibility
- Switchable ruler scales
Read full descriptionHide full description
Turn your iPhone or Apple Watch into a ruler and measure the scale of any small thing. Features: - switch between imperial and metric scales - adjust the height of the ruler for direct comparison - different color schemes - switchable ruler scales Apple Watch App: - switch between imperial and metric scales - switchable ruler scales
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
Read full descriptionHide full description
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 review sentiment: Infinite Ruler at 100% against Ruler App's 0%. Infinite Ruler also leads on price (Free vs $0.99) and rating (5.0 vs 2.6). Ruler App's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 18.2). On ratings volume, update cadence, ads and in-app purchases 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
Infinite Ruler is free to download; Ruler App costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Infinite Ruler holds the better App Store score, 5.0 against 2.6. Both are backed by a comparable volume of ratings — 5 and 2 respectively. Written reviews point the same way: 0% of Ruler App's written reviews are positive against 100% of Infinite Ruler's.
Ruler App ships an update every 11 months, Infinite Ruler every 7 months. The most recent releases landed on October 22, 2026 and October 8, 2026 respectively.
| Parameter | Ruler App | Infinite Ruler |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 2.6 (5 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 5 — better | 2 |
| Update frequency | Every 11 months | Every 7 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPod, Apple Watch — better | iPhone |
| Requires iOS | 12.0 — better | 18.2 |
| Further details — not scored | ||
| Size | 2 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Piet Jonas | Eric Savoie |
Customer experience
Ruler App
Infinite Ruler
In-app purchases
Ruler App
No in-app purchases
Infinite Ruler
No in-app purchases
Questions
Is Ruler App free?
Is Infinite Ruler free?
Which has better reviews, Ruler App or Infinite Ruler?
Do Ruler App or Infinite Ruler have ads?
Which is updated more often, Ruler App or Infinite Ruler?
Other comparisons
