Ruler / Measuring Tape vs E
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ruler / Measuring Tape
Measure objects using your device's screen, augmented reality, or by printing a ruler. Offers three distinct methods for on-demand measurement without physical tools.
- Measure against screen
- Augmented reality measurement
- Printable ruler via AirPrint
- ARKit integration
- No ads or in-app purchases
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Three ways to measure when you don't have a measuring tape or a ruler: 1 – AGAINST YOUR SCREEN Simple and precise for small measurements. 2 – IN AUGMENTED REALITY Place a virtual measuring tape on a vertical or horizontal surface, such as a wall, table or floor. Built with ARKit. 3 – USING AIRPRINT Print a ruler! Accuracy depends on the printer, so check the result against the on-screen ruler. NO ADS / NO IN-APP PURCHASES / NO TRACKING If you enjoy this app, discover "Print to Size" and my other independent apps at clafou.com
E
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E-LERT est une application collaborative qui propose à ses utilisateurs d'œuvrer collectivement pour identifier et localiser les délestages ou les coupures d'électricité sur une zone géographique donnée. L’application est dans un premier temps déployée sur le Grand Libreville. En participant à la communauté E-LERT, vous aidez les autres utilisateurs à profiter en temps réel de cartes plus précises et d'informations sur les coupures de courant, ainsi que d'autres fonctionnalités. Conditions d'utilisation: https://e-lert.org/cgvu.html Politique de confidentialité: https://e-lert.org/confidentiality.html
Screenshots
Verdict
The clearest difference is update cadence: E at every 9 days against Ruler / Measuring Tape's every 4 months. On price, ads, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Ruler / Measuring Tape ships an update every 4 months, E every 9 days. The most recent releases landed on October 15, 2026 and October 11, 2026 respectively.
| Parameter | Ruler / Measuring Tape | E |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (233 ratings) — better | — |
| Positive reviews | 50.7% of reviews | — |
| Number of ratings | 233 — better | — |
| Update frequency | Every 4 months | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 6 MB | 139 MB |
| Age rating | 4+ | 4+ |
| Developer | Clafou Ltd | E-Lert |
Bugs and requests
Ruler / Measuring Tape
Reported bugs
26 issues- Cannot accurately measure anything
- Force turns off the flashlight
- Shows totally wrong scale on iPhone 15 Pro Max
- cm and inch are in reverse directions
- Ne s’adapte pas au zoom de l’écran
Show 21 moreShow fewer
- Wouldn’t detect any surface
- Incorrect for iPad 7th Gen
- Doesn’t work as advertised (requires camera access)
- Impossibilité de mesurer des verticales
- Sólo sirve para cosas pequeñas
- Pas fiable, mesures différentes comparées avec un mètre-ruban
- Ne fonctionne pas
- Ne marche pas
- Tardo años, no sirve
- Can’t detect flat surface
- iPhone 6s: marche une fois sur dix
- Keeps analysing repeatedly with no recognition whatsoever
- Funktioniert nicht
- No vale para nada, no funciona y no detecta el suelo ni la mesa
- Todavía no entiendo para que sirve
- The augmented reality doesnt work accurately and the rules wont allow us to touch the screen
- Not working at all
- Ne semble pas fonctionner, passe son temps à analyser
- L'app prends énormément de temps à analyser
- AR läuft nicht, erkennt keine Fläche
- Can’t get it to measure anything
Requested features
9 requests- Option to change ruler pips (16/1, 8/1)
- Scrolling ruler for longer objects
- Button to turn on flashlight
- Compatibility for iPad Air 2
- Tutorial or instructions
Show 4 moreShow fewer
- Numeric measurements near the rule
- Ability to take multiple measurements simultaneously
- Dark mode option
- Advanced analytics dashboard
E
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Ruler / Measuring Tape
No in-app purchases
E
No in-app purchases
