# Ruler for iPad and iPhone — user reviews > 73 indexed App Store user reviews of Ruler for iPad and iPhone by Jonathon Walz, rated 4.50/5 from 545 ratings. - Source: https://appshunter.io/ios/app/ruler-for-ipad-and-iphone/id408117905/reviews - App overview in markdown: https://appshunter.io/ios/app/ruler-for-ipad-and-iphone/id408117905.md - Rating breakdown: 5★ 416 · 4★ 62 · 3★ 18 · 2★ 14 · 1★ 35 ## What do users think of Ruler for iPad and iPhone? Overall sentiment: neutral **Pros** - 👍 Very Convenient - ⚖️ Accurate - 🚀 Quick and simple - 🎨 Clear and well-designed **Cons** - 🐛 Inaccurate measurements - 🚫 Incompatible with newer devices - 📵 Ads blocking utility - 🤯 Confusing/buggy interface **Commonly reported bugs** - Ruler lines disappearing - Freezing/crashing issues - Incorrect scaling on different devices **Most requested features** - Add support for millimeters - Ability to save and share measurements - Customizable ruler options ## Newest reviews (13 of 73) ### 4/5 — useful but - *2019-08-26* useful app, but the add at the bottom conceals the end of the ruler. can the add go in the middle where it doesn’t obscure the point of the app?? ### 3/5 — Good for checking stitch gauge, a few other things. *2017-05-27* I needed a short ruler that I couldn't lose, as I design and create my own crochet patterns. This is handy, and it's long enough for the job, as well as for spacing buttons and such. ### 4/5 — Ads block utility *2016-11-27* An ad bar appears across the ruler at the bottom of the screen. It's in the one worst place it could possibly be to prevent being able to measure an object. It's only a buck to remove them, or is it? They play a game with "how much is it worth to you to remove the ads?" The polices range from $0.99 to several dollars. It's just a measuring stick. Businesses give them away for free. It's not worth a buck to me. Time to find a new app. ### 4/5 — Not too bad. You can measure stuff with your phone *2015-10-01* Look, what more do you want. It's not like the iPhone is an ideal ruler. The lines thing is easier erased when there are too many of them. Not a big deal. It's free and convenient as hell not to have to get up and get a ruler. ### 1/5 — You had one job... *2015-06-18, version 3.0.0* This app used to be great, but the measurements are now incorrect. For example, inches only have seven eighths on my iPhone 5s running iOS 8.3. ### 1/5 — Why is the App size doubled? *2015-05-12, version 2.2.3* Is the extra memory because of ios 8, or the new background ? ### 1/5 — Inaccurate!!!! Don't use!!! *2015-04-28, version 2.2.3* Zero stars for accuracy. This app shows inches to measure about 125% of true measurement. Because of this I had to return something I had purchased after using this app to check its size. This app wasted a good bit of my time. ### 3/5 — Only good for inches and centimeters *2015-03-18, version 2.2.3* It is a really good app buuut it is only for centimeters and inches I wanted one with millimeters ### 1/5 — Worthless on a 6 *2015-03-18, version 2.2.3* Doesn't account for different screen size on a 6. I learned the hard way. This app is horrible. ### 1/5 — Not for 6+ users *2015-03-04, version 2.2.3* Used this app for a small project, only afterwords I realized that 1 inch on a six plus is actually about 1.5 inches. Huge error for a ruler app. Useless. ### 1/5 — Abandoned App *2015-02-03, version 2.2.3* This used to be my "go to" ruler app and I even paid the IAP to remove ads but now the app has been completely abandoned and no longer is relevant. I now have an iPhone 6 and the measurements in this app are all off. It's showing the same size ruler I used to get in my iPhone 5. Obviously the app isn't intelligent enough to detect screen dimensions and format accordingly. Too bad. I used to like this one. 😟 ### 1/5 — Incorrect measuring *2015-01-29, version 2.2.3* Gets the basics wrong if t thinks 9.2cm is 8.8cm and also has an obtrusive advert obscuring one edge of the screen. Rubbish. ### 4/5 — Good, needs iPhone 6 Plus support *2015-01-10, version 2.2.3* Works great on iPhone 5. Needs update to support iPhone 6 Plus. ## Most critical reviews (10 lowest-rated) ### 1/5 — 👎👎👎👎👎 *2023-05-26* 😿 ### 1/5 — Nah... *2021-06-11* I gave them a buck, but not sure why. Maybe cause $.50 is not an option. I still don't get the purpose. Maybe the person who gave it a good review can explain it to the rest of us? ### 1/5 — App keeps freezing *2020-11-29* Appp keeps freezing on me for no reason ### 1/5 — No iPad 12.9 pro support *2018-11-12, version 3.1.3* No IPad 12.9 support ### 1/5 — Inaccurate *2018-06-22* Doesn't display correctly on my iPhone 6s plus, one inch on this ruler is closer to 1.2 inches in reality. ### 1/5 — Very Inaccurate *2016-08-05* This app is frustrating and very inaccurate. Don't waste your time checking measurements or trying to to make sense of all the lines and angles that pop up if you touch the screen. I would like to give this app what it deserves - zero stars. However, I had to gave it one star in order to leave a review. ### 1/5 — Grossly Inaccurate *2016-03-28* Measurements are about 10% less than truth. ### 1/5 — Not calibrated for iPhone 6s. *2015-10-06* Third ruler app I have tried. All three measure 93mm at the 80mm mark. ### 1/5 — Very bad!!!! *2015-07-20* This app is ridiculous. The lines pop up all over the screen and you have to continually delete them. I have tried many times to make it work. But it doesn't. Thinking the app would work if the ads were not there I was suckered into paying the 99 cents. The 99 cent charge is a scam. They will not give a refund. When I file a problem complaint with Apple's "Report a Problem", I am directed in circles, filling out more forms and giving more information to the developer. Please be forewarned, do not purchase anything from this developer, Walz Development. You will be sorry if you do. ### 1/5 — Incorrect ruler *2015-06-24, version 3.0.0* As seen in the sample images, and in the app itself: there are 28 increments per inch. Huh? Thats right, not 32 or 16. Twenty-eight. Garbage. ## Most praised reviews (10 highest-rated) ### 5/5 — Very Convenient!!! I use a lot! *2022-05-31* Use ### 5/5 — Accurate *2019-11-23* I tried two other screen-ruler apps and they were way off on iPhone X. This one is accurate! ### 5/5 — Does what it’s supposed to *2019-02-16, version 3.1.3* Works. Does what it’s supposed to do. Ads are unobtrusive. Who could ask for more! ### 5/5 — Works as advertised *2018-03-06* Many ruler apps are not scaled correctly to iPhone X, but this one was — I checked it with a tape measure. ### 5/5 — Accuracy *2018-01-24* It’s accurate on all iPhone models ### 5/5 — Very handy *2015-11-16* I think it's great. I added it to my iPad mini and find it great for quick measurements of small objects. Hey for those of us that are lazy and don't want to get up and find an actual ruler this does a fine job. It's also fun to play with. ### 5/5 — Quick start, accurate, and simple *2014-11-19, version 2.2.3* Nuff said ### 5/5 — does the trick *2014-08-10, version 2.2.3* I wanted to measure something but was too lazy to get up from my ipad. Tried the three ruler apps at the top of the list and this was the best. Simple, allows diagonal measurements so you can measure longer things. No irritating upsells. Easy to figure out. Does the trick. ### 5/5 — Ruler *2014-01-11, version 2.2.3* Great app. Use it to measure my groups when target shooting. Very useful. ### 5/5 — A hidden gem *2013-12-10, version 2.2.3* This app blows the competition away for having a crisp, simple, and even refreshing interface. The ability to measure sections of the screen using multi touch is very well executed. The fact that it works on both iPhone and iPad is icing on the cake. --- *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 2026-06-10.*