# Safety Score Accelerometer — See & Hear Car Deceleration > Measures and visualizes car deceleration using iPhone accelerometer data. (iPhone/iPad app by Christopher Torrella.) - Source: https://appshunter.io/ios/app/safety-score-accelerometer/id1589130959 (this page in markdown: same URL + `.md`) - Developer: [Christopher Torrella](https://appshunter.io/developer/1589130961) - Category: Utilities, Lifestyle - Price: Free - Rating: 4.73/5 from 11 App Store ratings · 6 written reviews indexed - Age rating: 4+ - Requires: iOS 14.5 · 0 MB - Languages: American English - Released: 2021-10-08 - Data updated: 2026-11-03 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/safety-score-accelerometer/id1589130959/reviews.md ## What is Safety Score Accelerometer? Wanna know how quickly you're decelerating in the coolest car made in America? Look no further than Safety Score Accelerometer! This simple app plays a tone and displays a color based on the accelerometer data on your iPhone. You can even change the tone frequencies and specify custom deceleration values. ## Key features - Accelerometer-based deceleration measurement - Auditory tone feedback - Visual color display - Customizable tone frequencies - User-defined deceleration thresholds ## Is Safety Score Accelerometer safe? Not enough ratings yet to assess Safety Score Accelerometer. ## Is Safety Score Accelerometer legit? Safety Score Accelerometer appears to be a legitimate app. The AppsHunter Legitimacy Score for Safety Score Accelerometer is 83 out of 100 points across 7 verification signals from App Store and developer data. ## Recent user reviews (6 of 6) All indexed reviews: https://appshunter.io/ios/app/safety-score-accelerometer/id1589130959/reviews.md ### 5/5 — Thanks and request *2022-03-25* Hi Chris, Thanks for this app. It really helped me improve my breaking score. The only problem is I have to turn Bluetooth off on my phone in order to hear the sound and then my phone doesn’t work with the car. If you don’t time to make fixes, perhaps you could share the code on GitHub? Much appreciated, Debbie ### 4/5 — Thank you! *2022-02-04* I’ll join the others and ask for two things: 1) lateral acceleration for the “aggressive turning” measure. Based on my vast ignorance of what it takes, I want to believe this wouldn’t be too difficult. 2) I fully understand the need for the iPhone to be oriented as described. I’d join every user in awarding bonus points if you could integrate the various inputs to give reliable results while the phone is in its happy place, the charging cradle! ### 4/5 — Clever idea, but should add steering *2021-12-25* Not sure why it doesn’t include an option to analyze the lateral acceleration for the steering portion of the safety score. ### 4/5 — Simple and great, but needs one improvement *2021-10-27* Works as expected and is very simple to use. However, I wish it was set up to be placed in the Tesla’s phone holders instead of flat on the center console where it can slide around too easily. Hope this will be added in an update ### 5/5 — Perfect app to help see the invisible score basher *2021-10-23* Thanks for whipping this up. Breaking and turning are so hard to determine without some visual guide in order for us to associate the proper braking as well as turning. Fingers crossed for fsd with this aide. ### 5/5 — Works as expected *2021-10-08* Indicators seem to be accurate as long as the phone is laying flat in the car and not in the charge bay. My infant also loves the sounds so it doubles as a baby toy I guess? ## Frequently asked questions about Safety Score Accelerometer ### What is Safety Score Accelerometer? Safety Score Accelerometer is a utility app that uses your iPhone's accelerometer to measure and display your car's deceleration. It provides both visual color cues and auditory tones based on the data. ### How does Safety Score Accelerometer work? The app utilizes the built-in accelerometer of your iPhone to detect changes in motion, specifically deceleration. This data is then translated into a color display and a sound alert. ### Can I customize the alerts in Safety Score Accelerometer? Yes, you can customize the tone frequencies and set specific deceleration values that trigger alerts. This allows for a personalized driving safety experience. ### What devices is Safety Score Accelerometer compatible with? Safety Score Accelerometer is compatible with iPhone, iPad, and iPod devices. It requires iOS 4.0 or later. ### Is Safety Score Accelerometer free to use? Yes, Safety Score Accelerometer is available for free. There are no in-app purchases or subscription fees associated with its use. ### Does Safety Score Accelerometer have ads? No, Safety Score Accelerometer does not contain advertisements. It provides an ad-free experience for users. ### How often is Safety Score Accelerometer updated? The app was last updated on October 8, 2021, with version 1.0. Further update frequency is not specified in the provided data. ### What is the age rating for Safety Score Accelerometer? Safety Score Accelerometer has an age rating of 4+, making it suitable for a wide range of users. ## Version history (last 1 release) ### 1.0 — 2021-10-08 No release notes. --- *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 2026-11-03.*