# ECRI Vehicle Calibrator > Vehicle calibration and diagnostic tool with GPS speedometer adjustment. (iPhone/iPad app by Connections Design, LLC.) - Source: https://appshunter.io/ios/app/ecri-vehicle-calibrator/id1459448854 (this page in markdown: same URL + `.md`) - Developer: [Connections Design, LLC](https://appshunter.io/developer/1080493516) - Category: Utilities, Productivity - Price: Free with in-app purchases - Rating: 4.61/5 from 18 App Store ratings · 13 written reviews indexed - Age rating: 4+ - Requires: iOS 15.1 · 46 MB - Languages: English - Released: 2019-11-05 - Data updated: 2026-06-04 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/ecri-vehicle-calibrator/id1459448854/reviews.md ## What is ECRI Vehicle Calibrator? ECRI uses patent pending technology to connect to your vehicle using an ECRI wireless device, which allows you to see current calibrations and write new ones. Benefits: • Easy to read current calibrations • Writing new calibrations is fast and easy • Use your phone's GPS to calibrate your tire size/speedometer • Calibration history is saved for each vehicle, letting you see calibration history from all ECRI uses on your vehicle • Read and clear trouble codes from specific modules System requirements: • Bluetooth 4+ • Internet access (WIFI or cellular) • GPS (if using automatic speedometer calibration) ## Key features - View current vehicle calibrations - Write new vehicle calibrations - GPS speedometer calibration - Calibration history tracking - Read and clear trouble codes ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Unlock Programming One Vehicle | $49.99 | one-time | ## Recent user reviews (10 of 13) All indexed reviews: https://appshunter.io/ios/app/ecri-vehicle-calibrator/id1459448854/reviews.md ### 5/5 — Very good and easy to use jku 2018 *2026-03-15, version 3.1.1* Does everything easily reprograms for new gearing, tire size, speedometer calibration. Wish it had some updates, for viewing gauges and temps ### 1/5 — No longer working after update *2026-02-14, version 3.1.0* The app no longer detects the ECRI security bypass module after the latest update. I am not longer able to recalibrate my Jeep Gladiator. Please fix this issue asap! ### 3/5 — 2013 Jeep Sahara *2025-02-01, version 2.4.0* The device seems to work as advertised. I completely understand needing a license for additional vehicles, however it would be nice to get one with the purchase of the device. ### 5/5 — 2022 Jeep JT Mojave *2024-06-28, version 2.2.0* This device is extremely easy to use. I recalibrated my tire size using GPS and it works perfectly. Additionally I enabled the LED lights on my truck and was able to engine codes that rapidly disappeared that other readers wouldn’t even see. I sent them to my dealership and they were able to fix my truck based off from those codes that were read. It was a bad speed sensor that lit up my dashboard and disabled cruise control and traction control. ### 5/5 — Super Simple *2024-04-01, version 2.2.0* Bought the Ecri to recalibrate my 2022 Jeep JT speedometer after upgrading to 35” tires. If you’ve watched the Ecri YouTube videos, it’s just that simple. The device and the app does what they say it does! ### 5/5 — I’m a believer! *2024-03-03, version 2.1.1* I’m not a mechanic but took me about 10 min to get everything up and running. My Jeep drives so smooth now after adjusting the correct tire size! Kudos ECRI : ) ### 5/5 — Phenomenal App *2023-05-19* A must for every Jeep owner. Brilliant execution of a most worthwhile application. ### 5/5 — Phenomenal Device *2022-09-04, version 1.9.12* A most impressive device that every vehicle enthusiast should posses. My 2022 Jeep Wrangler JL has benefited greatly and allowed me to access built in features that I otherwise would not have accessed otherwise. ### 5/5 — Outstanding *2022-05-18* The best app with easy to use features for my Jeep Wrangler. Also contacted support to add in new feature regarding auto door locks on/off and they updated it. Fantastic customer service with 5 Star ratings in all areas. ### 5/5 — Wow! *2021-07-24, version 1.7.2* Easy to use, worked great for my 2917 JeepJK. Now when I put new tires I can easily calibrate. Great app and product. ## Frequently asked questions about ECRI Vehicle Calibrator ### What is ECRI Vehicle Calibrator used for? ECRI Vehicle Calibrator connects to your vehicle using a specific wireless device to display current calibrations and write new ones. It also allows for GPS-based speedometer calibration and reading/clearing trouble codes. ### Does ECRI Vehicle Calibrator require a special device? Yes, the app requires a proprietary ECRI wireless device to connect to your vehicle. This device is essential for the app's calibration and diagnostic functionalities. ### How does ECRI Vehicle Calibrator calibrate the speedometer? The app utilizes your phone's GPS to accurately calibrate your tire size and, consequently, your speedometer. This feature ensures your speedometer reflects your vehicle's actual speed. ### Can I see past calibrations with ECRI Vehicle Calibrator? Yes, ECRI Vehicle Calibrator saves a calibration history for each vehicle. This allows you to review all past calibrations performed using ECRI devices on your specific vehicle. ### What are the system requirements for ECRI Vehicle Calibrator? The app requires Bluetooth 4+, internet access (WIFI or cellular), and GPS if you plan to use the automatic speedometer calibration feature. It is compatible with iPhone, iPad, and iPod. ### How often is ECRI Vehicle Calibrator updated? The latest version is 3.1.1, last updated on February 26, 2026. While the last update date is in the future, indicating potential for ongoing development, users can expect regular updates for improvements and bug fixes. ### What is the age rating for ECRI Vehicle Calibrator? ECRI Vehicle Calibrator has an age rating of 4+. This indicates it is suitable for a wide range of users, including younger individuals, due to its non-mature content. ### Does ECRI Vehicle Calibrator have ads? No, ECRI Vehicle Calibrator does not contain advertisements. This provides an uninterrupted user experience focused solely on vehicle calibration and diagnostics. ## Version history (last 5 releases) ### 4.0.1 — 2026-05-12 Small bug fixes ### 3.1.1 — 2026-02-26 Minor updates to improved vehicle compatibility ### 3.1.0 — 2026-01-14 - Tire size input no longer resets when dialog is dismissed - Freedom Module compatibility improved - Freedom Module can now be programmed whether the stock SGW module is connected or bypassed ### 3.0.0 — 2025-09-09 Added support for Freedom Module ### 2.5.1 — 2025-06-25 Minor user interface improvements ## Apps similar to ECRI Vehicle Calibrator | App | Rating | Price | Category | | --- | --- | --- | --- | | [WARN HUB Wireless Control](https://appshunter.io/ios/app/warn-hub-wireless-control/id1480869446) | 4.1 (61) | Free | Utilities | | [Pulsar XT](https://appshunter.io/ios/app/pulsar-xt/id1673798600) | 3.3 (4) | Free | Utilities | | [Smart TPMS](https://appshunter.io/ios/app/smart-tpms/id1124926342) | 2.4 (5) | Free | Utilities | | [OBD JScan](https://appshunter.io/ios/app/obd-jscan/id1445903514) | 4.3 (76) | Free | Utilities | | [TPMS-Tool](https://appshunter.io/ios/app/tpms-tool/id1602193687) | — | Free | Utilities | | [sPOD Bantam](https://appshunter.io/ios/app/spod-bantam/id1256843949) | 2.6 (61) | Free | Utilities | ## Related topics [ecri vehicle calibrator](https://appshunter.io/ios/topics/ecri-vehicle-calibrator) · [ecri](https://appshunter.io/ios/topics/ecri) · [at588 calibration](https://appshunter.io/ios/topics/at588-calibration) · [calibrex](https://appshunter.io/ios/topics/calibrex) --- *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 2026-06-04.*