Epic Ruler vs Rul3r
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
Rul3r
This utility app provides a portable ruler for on-the-go measurements. It also includes a suite of additional tools like a protractor, spirit level, and various meters for diverse measurement needs.
- Portable ruler
- Protractor
- Spirit level
- Altimeter
- Decibel meter
- Plumb line
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Did you ever want to measure the length of something but you had no ruler at hand? Rul3r was created exactly for situations like this, so that a portable ruler is always available to you on your phone, whenever you need it. What's more, Rul3r provides a lot more tools: * Protractor * Plumb Line * Spirit Level * Elevation, Air Pressure and Location meter * Decibel Meter * Ordinal Date Converter
Screenshots
Verdict
The clearest difference is review sentiment: Rul3r at 45% against Epic Ruler's 0%. Rul3r also leads on rating (4.5 vs 1.0) and update cadence (every 2 months vs every 17 months). Epic Ruler's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price 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. Rul3r sells 1 one-off in-app purchase. Epic Ruler asks for nothing beyond the download.
Rul3r holds the better App Store score, 4.5 against 1.0. That said, the two scores are not equally well evidenced: Rul3r has 1K ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 0% of Epic Ruler's written reviews are positive against 45% of Rul3r's.
Epic Ruler ships an update every 17 months, Rul3r every 2 months. The most recent releases landed on August 11, 2026 and September 22, 2026 respectively.
| Parameter | Epic Ruler | Rul3r |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (4 ratings) | 4.5 (1K ratings) — better |
| Positive reviews | 0.0% of reviews | 44.8% of reviews — better |
| Number of ratings | 4 | 1K — better |
| Update frequency | Every 17 months | Every 2 months — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 26.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 11 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Chih-Hao Chen | YOYASOFT LLC |
Customer experience
Epic Ruler
Rul3r
In-app purchases
Epic Ruler
No in-app purchases
Rul3r
- Remove Ads$2.99
Questions
Is Epic Ruler free?
Is Rul3r free?
Which has better reviews, Epic Ruler or Rul3r?
Do Epic Ruler or Rul3r have ads?
Which is updated more often, Epic Ruler or Rul3r?
Other comparisons
