Super Ruler vs Calipers Tape Measure
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Super Ruler
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Now you can Measure everything with beautiful on-screen ruler. A simple, user-friendly and accurate ruler for your phone -Caliper mode - Pick your units: mm, cm, inches, m, inch, foot, and yards - Control ruler length as you want, even you can put 100 meter if you want - no calibration needed - Copy current length to clipboard and paste it in another app - Save your current measurement screen as image - Very simple so everyone can use it
Calipers Tape Measure
Measure objects of any size with your phone. Features a 5-meter tape measure for larger items and a precision caliper mode for measuring small objects down to a tenth of a millimeter. Offers highly accurate readings tested across various devices and settings.
- 5-meter tape measure
- Precision caliper mode
- Measure to 0.1mm accuracy
- Spirit level functionality
- Accurate measurement testing
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Calipers lets you take measurements when you're on the go. For the big things, there's 5 meter tape measure. Simply place your iPhone on a surface so the ‘zero’ aligns with where you want to start your measurement. Next, place a finger near the bottom of your iPhone and slide your iPhone along the surface, keeping your finger still. Finally, when your finger reaches the top, repeat the process again until you’ve completed your measurement For the little things, the calipers mode will let you measure objects within a tenth of a millimeter. Simply place an object on the screen, and drag the top and bottom guides until they are just visible. To get really accurate readings, you can use the ‘plus’ and ‘minus’ buttons to move the guides closer or further apart by a 1/10th of a millimeter. 6 out of the top 10 free apps in this category are off by as much as 10% on the iPhone 12 & 13 Mini, or when some accessibility features are enabled. Since most people don't check their app against a ruler - we felt it was really important we did! This app has been throughly tested to ensure the measurements are accurate in every scenario.
Screenshots
Verdict
The clearest difference is price: Super Ruler at Free against Calipers Tape Measure's $1.99. Super Ruler also leads on iOS requirement (11.0 vs 17.0). Calipers Tape Measure's advantage is ads (none vs shown) and update cadence (every 3 months vs every 109 months). On 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
Super Ruler is free to download; Calipers Tape Measure costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Super Ruler ships an update every 109 months, Calipers Tape Measure every 3 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.
| Parameter | Super Ruler | Calipers Tape Measure |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | — | 4.3 (26 ratings) — better |
| Positive reviews | — | 77.8% of reviews |
| Number of ratings | — | 26 — better |
| Update frequency | Every 109 months | Every 3 months — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 11.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 8 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Hany Elmehy | Jacob Parker |
In-app purchases
Super Ruler
No in-app purchases
Calipers Tape Measure
No in-app purchases
Questions
Is Super Ruler free?
Is Calipers Tape Measure free?
Do Super Ruler or Calipers Tape Measure have ads?
Which is updated more often, Super Ruler or Calipers Tape Measure?
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