STUNLOCKER

4.4
768 reviews
10K+
Downloads
Content rating
Everyone
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About this app

App works with Shimano E-Bike motors (EP801, EP8, EP6, E8000, E7000, E6100, E5000) via Bluetooth.
Allows:
- Get E-bike information (total distance, battery health and etc)
- Change assist settings
- Change gearing type (mechanical, electrical) and chainrings size
- Presets for quick setups of your bike
- Other features depending on 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.
Updated on
Oct 27, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection

Ratings and reviews

4.4
751 reviews
Viper Guy
February 15, 2021
You need to have the old firmware, which they can send you the instructions on how to revert back through Bluetooth on your phone. Once I did that the software worked as advertised. Keep in mind the initial cost of the software is not the final amount. It's an additional $38 for unlocking all the features of the software, but it is worth it and it will truly derestrict your Shimano ebike. Unlike a piggyback, you actually get the full use of your mph on your display. Follow provided directions!
14 people found this review helpful
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A Google user
December 4, 2019
Initially I did not realise to purchase a licence to access the full app, I couldn't find a contact so left a review to gain their attention, they responded 👍 I purchased the Licence and tried the App today. I uploaded the US profile, which allowed the bike to reach 19 or 20 mph before the motor cut out, and seemed to have increased torque. Impressive. I need to work out what else the App can do as it's not as fast as a speedbox, but much cheaper and I have had issues with my speedbox
5 people found this review helpful
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STUnlocker.com
December 1, 2019
You can't apply US settings without the Premium licence. Read the manual first. Looks like you solved it by purchasing a premium license. Still 3* ?
Rob
April 5, 2026
Rubbish app, doesn't work with upgraded software, total waste of money won't refund!
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STUnlocker.com
April 6, 2026
Impressive consistency: ignoring the compatibility warnings before purchase, confirming many times that firmware is not supported including "no refund" term, and then being surprised by exactly what was clearly stated. At least the app works exactly as described. Anyway we’re happy to help you with the firmware downgrade anytime.

What’s new

= minor fixes

App support

About the developer
Вадим Букин
stepsunlocker@gmail.com
пер.Цимлянский 1Б кв.44 Новочеркасск Ростовская область Russia 346421

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