# STUNLOCKER > Shimano E-Bike motor Bluetooth connectivity and settings customizer. (iPhone/iPad app by Vadim Bukin.) - Source: https://appshunter.io/ios/app/stunlocker/id1470219023 (this page in markdown: same URL + `.md`) - Developer: [Vadim Bukin](https://appshunter.io/developer/1470219022) - Category: Sports - Price: Free (on sale, was $0.99) - Rating: 3.96/5 from 24 App Store ratings · 49 written reviews indexed - Age rating: 4+ - Requires: iOS 12.1 · 14 MB - Languages: English - Released: 2019-07-02 - Data updated: 2026-06-10 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/stunlocker/id1470219023/reviews.md ## What is STUNLOCKER? App works with Shimano E-Bike motors via Bluetooth. Allows: - Get E-bike information (total distance, battery health and etc) - Change assist settings - Change gearing type (mechanical, electrical) and chainrings size - Change light settings - Presets for quick setups of your bike - Other features depending on your bike's firmware Warning: the new EP801 and EP6 motors do not support changing advance settings (region, circumference). All other motors with the latest firmware do not support changing advanced settings via Bluetooth. ## Key features - Connect via Bluetooth to Shimano E-Bike motors - View E-bike information (distance, battery health) - Change assist settings - Modify gearing type and chainring size - Adjust light settings - Create presets for quick setups ## Recent user reviews (10 of 49) All indexed reviews: https://appshunter.io/ios/app/stunlocker/id1470219023/reviews.md ### 1/5 — DO NOT BUY *2025-07-20, version 1.21.113* I don't do reviews but one doesn't work and two the customer service when emailing is outrageous the sarcasm from the email if I could no stars I would. DO NOT BUY ### 5/5 — Ideal app *2025-02-06, version 1.20.112* I used this from 2020 or so on my steps8000. Amazing Easy to refit the restriction when i lent bike to friend for several years. He can’t ride now so i have it back. I have forgotten the code so i can use the app. Can you help? ### 5/5 — Works *2024-07-14, version 1.19.108* Most issues here are user error not the fault of this app. Read all the docs people. ### 5/5 — Really good *2024-06-24, version 1.18.107* Software seems better than the Shimano app. Works well, I’ve changed my e7000 to us spec and now get 20mph. Fairly easy to understand and really good communication from the developer ### 5/5 — Very user friendly *2024-04-01, version 1.18.105* I’ve used the app on a number of Shimano motors and found the instructions to unlock the speed limit (and other settings) extremely easy to follow. You get so much more joy out of your e-bike once it’s un-restricted. Keep up the good work. ### 4/5 — Battery info *2024-03-19, version 1.18.104* Got the basic version of the app to be able to read battery health info. Didn’t purchase premium version. I get 95% battery health reading without and 97% with extender attached. Does that mean that extender is super healthy and brings the overall health percentage up? It also shows 0 cycles in both cases. Not sure how to interpret that result. ### 5/5 — Can’t buy license *2024-02-23, version 1.17.102* Hi there , I have got an orange phase mx pro with ep8 motor I am having trouble purchasing the license do have an idea many thanks. ### 4/5 — Works well *2023-12-11, version 1.17.102* Limited with ep801 modification ### 4/5 — EP8 full support? *2023-11-16, version 1.17.102* Are you going to be able to add the possibility to change the full power to 600w and 100nm on the EP8? Right now the app is nice but missing the key features. ### 5/5 — RS motor upgrade *2023-11-14, version 1.17.102* If you have an RS motor with 60NM you need this app. 99p to upgrade to 85NM and it takes literally 30 seconds! Amazing app thank you! Is there any way of upping the speed limiter on the RS motor yet? It’s saying the full app isn’t compatible with this motor ## Frequently asked questions about STUNLOCKER ### What does STUNLOCKER do? STUNLOCKER connects to Shimano E-Bike motors via Bluetooth. It allows you to view E-bike information such as total distance and battery health, and to change various settings like assist levels, gearing type, and light settings. ### What are the key features of STUNLOCKER? Key features include Bluetooth connectivity to Shimano E-Bike motors, displaying E-bike data, modifying assist settings, changing gearing configurations, adjusting light settings, and creating presets for quick bike setups. ### Is STUNLOCKER free to use? Yes, the application is free to use. There are no in-app purchases or advertisements mentioned. ### What E-Bike motors is STUNLOCKER compatible with? The app works with Shimano E-Bike motors via Bluetooth. However, newer EP801 and EP6 motors do not support changing advanced settings like region or circumference. All other motors with the latest firmware also do not support advanced Bluetooth settings changes. ### What are common use cases for STUNLOCKER? Common use cases include monitoring your E-bike's battery health and total distance, fine-tuning the assist levels to your preference, or changing gearing configurations for different riding conditions. You can also set up custom presets for different types of rides. ## Version history (last 5 releases) ### 1.21.115 — 2026-05-01 = widgets update for latest IOS ### 1.21.114 — 2025-10-09 = options for EP801/EP6 optimization ### 1.21.113 — 2025-05-22 + actual firmware support = minor changes ### 1.20.112 — 2025-01-22 = minor fixes ### 1.20.111 — 2025-01-18 = minor fixes ## Apps similar to STUNLOCKER | App | Rating | Price | Category | | --- | --- | --- | --- | | [E-TUBE PROJECT Cyclist](https://appshunter.io/ios/app/e-tube-project-cyclist/id1176407871) | 1.8 (62) | Free | Sports | | [SpeedBox App](https://appshunter.io/ios/app/speedbox-app/id1404769262) | 3.9 (10) | Free | Sports | | [My SmartBike](https://appshunter.io/ios/app/my-smartbike/id1566348476) | 4.7 (569) | Free | Sports | | [Intuvia 100 Update](https://appshunter.io/ios/app/intuvia-100-update/id6474067957) | 1.0 (3) | Free | Sports | | [SAGLY - #1 mtb settings guide](https://appshunter.io/ios/app/sagly-1-mtb-settings-guide/id1564693622) | 4.4 (12) | Free | Sports | | [WiGET](https://appshunter.io/ios/app/wiget/id768095762) | 2.3 (24) | Free | Sports | ## More apps by Vadim Bukin - [HopHut](https://appshunter.io/ios/app/hophut/id1493433756) - [STUnlocker Ride](https://appshunter.io/ios/app/stunlocker-ride/id1555083755) - [STUnlocker Ride SP](https://appshunter.io/ios/app/stunlocker-ride-sp/id6498951084) All apps by Vadim Bukin: https://appshunter.io/developer/1470219022 ## Related topics [shimano di2](https://appshunter.io/ios/topics/shimano-di2) --- *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.*