# Ruler ++ — user reviews > 826 indexed App Store user reviews of Ruler ++ by Fapps World et Cie S.E.C.S., rated 3.50/5 from 934 ratings. - Source: https://appshunter.io/ios/app/ruler-plus-plus/id381682088/reviews - App overview in markdown: https://appshunter.io/ios/app/ruler-plus-plus/id381682088.md - Rating breakdown: 5★ 518 · 4★ 60 · 3★ 40 · 2★ 33 · 1★ 283 ## What do users think of Ruler ++? Overall sentiment: negative **Pros** - 👍 Simple and quick to use - 👍 Includes both metric and Imperial measures - 🚀 Great for wanting to measure displayed length **Cons** - 🐛 Measurements are not accurate - 🐛 Ruler not matching real-world measurements - 🐛 Ruler not scaling properly on different devices - 🔋 Ads make it impossible to use - 🔋 Constant, intrusive ads - 🔋 Ads with sound that can't be turned off **Commonly reported bugs** - Ruler markings are incorrect - Ruler not displaying full length on screen - Incompatible with newer iPhone models **Most requested features** - Add ability to calibrate ruler for different devices - Improve accuracy of measurements - Reduce or remove ads ## Newest reviews (18 of 826) ### 2/5 — Useless *2026-03-30, version 1.8* There is no way to adjust the rule to match your phone. I have a 17 pro max and it over measures on the scale ### 1/5 — Très imprécis sur mon iPhone 12 mini *2025-12-01, version 1.8* J’ai eu le besoin de vérifier la précision de cette règle. J’ai essayé sur la largeur d’une feuille A4 : 22,7 cm au lieu de 21,0 cm ! App à éviter à tout prix, on ne peut pas y faire confiance ! ### 3/5 — Great, but not with iPhone 17 *2025-11-24, version 1.8* This is a nice simple ruler app, but unfortunately it is not accurate on my iPhone 17 with iOS 26. I’m sure the developer can update it in due course. ### 1/5 — This is way off *2025-11-13, version 1.8* The scale it totally off ### 1/5 — Not accurate *2025-11-04, version 1.8* We tested it out on two different phones with different screen sizes (iphone 14 pro max and 12 pro) and the screen displayed an identical picture (i.e. 1cm on the smaller iPhone did not correspond to 1cm on the larger iPhone) ### 2/5 — Not accurate in iPhone 14 Plus *2025-11-03, version 1.8* Not accurate in iPhone 14 Plus ### 1/5 — 3mmズレてる *2025-09-30, version 1.8* 広告ウザイなどあるが、致命的なのは10cmで3mmズレてる 他の定規アプリではズレてないので、端末ではなくこのアプリの問題 そのおかげで何度か買い直した経験あり最悪 ### 1/5 — 10cm→実際は9.6cm *2025-09-08, version 1.8* 現実の定規で測ってみるとズレがある ちょっと修正するだけでいいのでお願いします ### 1/5 — Awful app *2025-08-17, version 1.8* Not accurate ### 1/5 — Sai kích thước *2025-06-04, version 1.8* sai kích thước bét nhẹt ### 1/5 — Weird app *2025-04-13, version 1.8* Very very weird ### 1/5 — 절대 쓰레기 쓰지마요 *2025-03-26, version 1.8* 실제 치수보다 눈금이 크게 차이납니다. 참고용정도로만. 깔았다 바로 삭제함. ### 1/5 — Infect mauvaise taille depuis 5 ans *2025-02-26, version 1.8* Pire logiciel qui donne de fausse mesures ### 1/5 — Inaccurate measurement *2025-02-21, version 1.8* Untrustable, should not be used to measure anything. Should use anther application or physical ruler instead ### 3/5 — Precisão *2025-02-01, version 1.8* A régua é prática, mas aumenta 3 mm a cada 10 cm. Seria útil uma função para calibrar a escala? ### 1/5 — Not accurate. *2025-01-31, version 1.8* I have an iPhone 15 pro max. Ruler is not accurate at all. Just putting it up to a ruler it’s about 20-30% off. No way to scale it to my phone. So it’s useless. ### 1/5 — No real *2024-12-24, version 1.8* La medida que se obtiene no es real en un iPhone 15 Pro Max ### 1/5 — Wrong Size on iPhone 16 Pro Max *2024-11-18, version 1.8* Ruler has one job and gets it wrong on iPhone 16 Pro Max. Inch is far far greater than an inch. ## Most critical reviews (10 lowest-rated) ### 1/5 — Trash *2026-08-30, version 1.8* Useless ### 1/5 — Ad banner makes ruler inaccurate *2026-07-18, version 1.8* I wish I was joking here, but the banner ad at the top of the app squishes the ruler image and makes the ruler’s increments inaccurate! You need to pay to remove the ads to get an actually accurate ruler! Ridiculous! ### 1/5 — is deceiving *2026-05-17, version 1.8* Shows distance incorrectly. ### 1/5 — 普通にズレとる *2026-04-24, version 1.8* 1cmは合ってるんだけど長くなるにつれてズレてくる ### 1/5 — Incorrect scale *2026-03-04, version 1.8* Incorrect scale on iPhone 12 mini ### 1/5 — Non veritiero *2026-02-23, version 1.8* Assolutamente inutile ### 1/5 — Wrong measurement *2026-01-18, version 1.8* This app is not accurate. 1 inch is not an inch. It is about a half an inch off. ### 1/5 — Achtung Werte stimmen nicht *2026-01-02, version 1.8* iPhone 12 Pro Max und Zentimeter stimmen definitiv nicht ### 1/5 — Không chuẩn *2025-12-28, version 1.8* Kích thước trên app lớn hơn kích thước thực tế ### 1/5 — なんちゃって定規 *2025-12-08, version 1.8* iPhone12 miniで使用。 セミオーダー品の作成のため使用していたが実数値が合わないことが多く定規と比較。 10mmまでは合っているがそれ以降はどんどんズレる。 最終的にアプリで100mmのところは定規で92mmでした。 二度と使わない。 ## Most praised reviews (10 highest-rated) ### 5/5 — Yep its a ruler *2026-02-28, version 1.8* 🤘 ### 5/5 — Ruler *2025-01-13, version 1.8* Trop cool Surtout pour la géométrie ### 5/5 — Ruler *2024-07-01, version 1.8* I don’t know why you designed this app but I downloaded it and it’s like a real ruler! 5 stars. ### 5/5 — Excelente *2024-05-05, version 1.8* Muy útil ### 5/5 — Good *2024-03-13, version 1.8* It is good ### 5/5 — One *2023-12-15, version 1.8* Junk ### 5/5 — Règle prenium sans pub mon gaté *2023-12-01, version 1.8* Ça vaut ce que ça vaut, je conseille la version prenium qui offre une qualité d’utilisation plus qu’ultime surtout dans les métiers de l’art et du design qui nécessitent une grande précision le tout sans pub. Brad Pitt m’avait dit un jour « depuis que j’ai l’appli règle prenium j’ai gagné 37 oscar et 7 cesar, je recommande , je te passerais 20 balles si tu installe » Brad Pitt me les a passer je suis riche dorénavant ### 5/5 — Boring *2023-08-04, version 1.8* Add aerial combat please modern warfare has it but this doesn’t ### 5/5 — My feet are too small for the scale I will wet them down. W *2023-07-27, version 1.8* 1.2 inches btw isn’t that crazy Crazy? I was crazy once they locked me in a room a rubber room a rubber room with rats rats make me crazy, Crazy? I was crazy once they locked me in a room a rubber room a rubber room with rats rats make me crazy, Crazy? I was crazy once they locked me in a room a rubber room a rubber room with rats rats make me crazy, Crazy? I was crazy once they locked me in a room a rubber room a rubber room with rats rats make me crazy, Crazy? I was crazy once they locked me in a room a rubber room a rubber room with rats rats make me crazy, Crazy? 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