Ruler Professional vs Epic Ruler
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ruler Professional
Transform your iOS device into a versatile measuring tool. Accurately measure lengths in both centimeters and inches using on-screen markers. Ideal for quick, on-the-go measurements.
- Device as a ruler
- Metric and imperial units
- Adjustable measurement markers
- Real-time distance display
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Turn your iPod Touch, iPhone or iPad into a ruler! You want to measure in centimeters? or inches? We support both the metric and English systems. You want to measure the length of an object? You can move the two red lines in the app and the distance between the two lines will be displayed to you immediately!
Epic Ruler
Transform your smartphone into a portable measuring tool. Accurately measure lengths in both inches and centimeters directly from your device.
- Converts phone to ruler
- Measures in inches
- Measures in centimeters
- Pocket-sized utility
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This app turns your phone into a portable pocket ruler, with support for both inches and centimeters.
Screenshots
Verdict
The clearest difference is review sentiment: Ruler Professional at 57% against Epic Ruler's 0%. Ruler Professional also leads on rating (3.3 vs 1.0) and ads (none vs shown). Epic Ruler's advantage is in-app purchases (none vs 1). On price, ratings volume 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. Ruler Professional sells 1 one-off in-app purchase. Epic Ruler asks for nothing beyond the download.
Ruler Professional holds the better App Store score, 3.3 against 1.0. Both are backed by a comparable volume of ratings — 3 and 4 respectively. Written reviews point the same way: 57% of Ruler Professional's written reviews are positive against 0% of Epic Ruler's.
Ruler Professional ships an update every 6 months, Epic Ruler every 17 months. The most recent releases landed on September 29, 2026 and October 2, 2026 respectively.
| Parameter | Ruler Professional | Epic Ruler |
|---|---|---|
| Price | Free | Free |
| Rating | 3.3 (3 ratings) — better | 1.0 (4 ratings) |
| Positive reviews | 57.1% of reviews — better | 0.0% of reviews |
| Number of ratings | 3 | 4 — better |
| Update frequency | Every 6 months — better | Every 17 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 10.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 7 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | KBIC International Ltd | Chih-Hao Chen |
Customer experience
Ruler Professional
Epic Ruler
In-app purchases
Ruler Professional
- Ad Removal$0.99
Epic Ruler
No in-app purchases
Questions
Is Ruler Professional free?
Is Epic Ruler free?
Which has better reviews, Ruler Professional or Epic Ruler?
Do Ruler Professional or Epic Ruler have ads?
Which is updated more often, Ruler Professional or Epic Ruler?
Other comparisons
