About Ruler App
I downloaded the Ruler App because I was tired of digging through drawers for a tape measure every time I needed to check if a new bookshelf would fit. As a free app from Grymala apps, I wasn’t expecting professional-grade accuracy, but I was curious to see if it could handle everyday tasks. My first test was in my living room, and I’ve been using it on and off for small projects since.
Features & Highlights
The core feature is obvious: you point your phone’s camera at something, tap to set start and end points, and it gives you a measurement. I found the ability to switch between inches and centimeters with one tap genuinely useful when I was looking at online furniture specs. The photo annotation tool saved me once; I measured a weird corner in my kitchen, took a photo, doodled the dimensions right on it, and sent it to my partner so we could discuss a new cabinet. While the angle and area modes sound great, I mostly stuck to simple length measurements. Saving measurements with labels like “Window Frame” was more helpful than I thought for keeping track during a small renovation weekend.
User Experience
Opening the app, the interface is straightforward with a big camera view. I remember trying to measure my desk first. The on-screen prompts were clear, but I had to move around to get good lighting, as a shadow was throwing off the initial reading. When it worked, it felt like magic—seeing the digital line overlay the real world and getting a number instantly. However, I tried measuring the height of my floor-to-ceiling bookshelf, and the app struggled with the vertical distance, giving me a result that was off by a few inches compared to my physical tape measure. For smaller, flatter items like a picture frame or a laptop, it was surprisingly close. The experience is a mix of “wow, this is cool” and “okay, I should probably double-check that.”
Pricing
The app is completely free with ads. The ads are usually banners at the bottom of the screen and weren’t too intrusive during my measuring sessions. I didn’t encounter any paywalls locking away core features like the camera measure or unit toggling. For a zero-cost tool, it delivers solid value. You’re not getting a laser-precise instrument, but for a quick “ballpark” check to see if a rug is roughly the right size before you go move it, it’s absolutely worth the download.
Updates & Support
Looking at its update history on the Play Store, Grymala apps pushes updates every few months, mostly for bug fixes and compatibility. I haven’t had any major crashes that required me to contact support, so I can’t speak to their responsiveness. The app itself feels stable, if a bit basic in its design. It doesn’t seem like a project that’s getting major new features regularly, but it’s being maintained enough to keep it running on new Android versions.
Security & Privacy
I got it from the official Google Play Store. The app’s privacy label on the store states it may collect location data (probably for ads) and app diagnostics. During my use, it requested camera permission, which is obviously necessary, but I didn’t see requests for anything else like contacts or files. The in-app ads are standard for a free utility. If you’re privacy-conscious, it’s a good idea to review the permissions after install and restrict anything you’re not comfortable with, like location.
