# Ruler - Accurate Ruler — user reviews > 96 indexed App Store user reviews of Ruler by 祥祎 刘, rated 2.60/5 from 40 ratings. - Source: https://appshunter.io/ios/app/ruler-accurate-ruler/id1084232739/reviews - App overview in markdown: https://appshunter.io/ios/app/ruler-accurate-ruler/id1084232739.md - Rating breakdown: 5★ 11 · 4★ 5 · 3★ 3 · 2★ 1 · 1★ 20 ## What do users think of Ruler? Overall sentiment: mixed **Pros** - ✅ Accurate measurements compared to physical rulers - 👍 Simple and intuitive user interface - 🎯 No intrusive ads or minimal advertising - ⚡ Fast and responsive performance - 🆓 Free to use application - 📱 Works well on older iPhone models (6S, 6+, 7) - 🎨 Clean and minimalist design **Cons** - 🐛 Blank white screen on newer devices - ❌ No support for iPhone 12 and newer models - ❌ No support for iPhone X and iPhone 11 - 🔄 App not updated in years - ⚠️ Device compatibility detection issues - 🔐 Privacy concerns - clipboard access without permission - 📐 Inaccurate measurements on some devices - 🔧 Broken toggle switches and non-functional UI elements - 💰 Misleading free app that charges users - 📱 iPad compatibility issues **Commonly reported bugs** - White/blank screen display on newer iOS versions - App crashes and freezes on launch - Ruler not rendering or displaying - Toggle switches stuck in grey/disabled state - Incorrect device identification (iPad size misidentification) - Incompatibility with iOS 13.3 and newer - Authenticator code clipboard access on launch - Screen rotation issues - Inaccurate ruler scaling on iPhone 8, 11, 12, 13, 16 Pro - App requests rating before allowing use **Most requested features** - Support for iPhone 12, 13, 14, 15, 16 and newer models - Millimeter measurement option - Longer ruler display - Fractional inches (1/16, 1/8) instead of decimal inches - Support for newer iPad models - Ability to disable ads - Better device detection and compatibility ## Newest reviews (10 of 96) ### 4/5 — Pretty funny interface *2025-09-21* When i opened the app i thought it’s sole purpose was to simply tell you that it’s correct about your screen size 😂 ### 3/5 — Great app, but outdated *2022-01-08* This app is a great app! I've used it for stuff a lot! Now to the bad news: I got a new phone today (iPhone 13 Mini), only to find that this app doesn't support iPhone 12 or newer. So I can't use this app anymore! Please update it. ### 4/5 — Not working on 13 pro max *2021-12-19* Very good ruler. Not working on newest iPhone ### 1/5 — Doesn’t work with iPhone 12 or IPad Pro (with Lidar) *2021-01-26, version 6.1* Doesn’t work with iPhone 12 or IPad Pro (with Lidar) ### 4/5 — Love it! *2021-01-17* Nice and simple, and ACCURATE. Makes it easy when I don’t have a ruler handy, or when I am at the store and need to measure if a basket or bin is the right size I am looking for! ### 1/5 — Copies clipboard data *2020-11-24* As soon as I opened up the app, it copied the information off of my clipboard, the same way that Instagram was caught doing. I deleted the app right away! ### 3/5 — T *2020-09-21* Cc’d r c ### 1/5 — Does not work on iPad *2020-08-21* Just showing ads. No ruler. 😟 ### 1/5 — Rate to use *2020-08-09, version 6.1* Had it rate it in order to use ### 1/5 — Doesn’t work iPhone SE 2020 *2020-07-11, version 6.1* Doesn’t even show a ruler, app not updated in 8 months, don’t bother. ## Most critical reviews (10 lowest-rated) ### 1/5 — Doesn’t work on iphone 16 pro *2025-03-05* Doesn’t work on iphone 16 pro ### 1/5 — Dead *2024-01-13, version 6.1* App no longer functions and when launched it requested access to my Authenticator pasted code. The app just displays a white screen, a broken toggle and 3 links. One of those links is just to write a review. ### 1/5 — Used to work fine but it’s broken now *2023-06-24, version 6.1* Used to work fine but now there is no ruler on the screen, the app is rotated and all I can ever see is the switch between CM and IN. ### 1/5 — Blank screen *2023-06-11* It doesn’t show anything except some buttons like “my other apps” and “write a review” which I used to write this but not a ruler ### 1/5 — Not working *2023-05-01, version 6.1* App won’t even let me choose cm or inches there both grey ### 1/5 — Was excellent but now just a blank screen *2022-07-15, version 6.1* This ruler app used to be absolutely perfect. It just worked. It was accurate and showed the ruler instantly. However, it now just shows a blank white screen with no measurements. Please fix it as all the other ruler apps are full of ads and terrible ! ### 1/5 — Used to be great now no longer works *2022-06-16* I’ve had this ruler app on this phone for a while and suddenly one day decided to not work anymore. Developer is not following through with software updates and the application is no longer functional. ### 1/5 — It’s not accurate *2021-11-10* I placed a real ruler up to the screen and the app ruler was considerably shorter. ### 1/5 — terrible *2021-07-20* theres isn’t even a ruler on the app, just a blank screen and the option for cm/in. waste of time. ### 1/5 — Stopped working. *2021-07-10, version 6.1* Only get a blank screen ## Most praised reviews (10 highest-rated) ### 5/5 — Great app *2024-10-01* Has worked well for many years and looks nice, thanks! ### 5/5 — nb *2023-01-16* nb ### 5/5 — It works *2021-09-19* Works with my device ### 5/5 — cool *2020-11-21* i can now easily measure my pp ### 5/5 — a bit above average *2020-11-17, version 6.1* 10/10 ### 5/5 — Awesome *2020-10-17* Why are there so many bad reviews it told me super fast. Definitely recommend!! ### 5/5 — Simple and really useful app. *2020-10-04* It just works ### 5/5 — Great use *2020-09-23, version 6.1* Simple ruler, just what I needed, thank you ### 5/5 — Time for *2020-07-26* Time for ### 5/5 — Needed a small ruler *2020-07-05* It was perfect with my 6+ --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-17.*