Eplus Tutor Pro vs STUNLOCKER
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Eplus Tutor Pro
Customize your Shimano ebike's engine performance with this app. Adjust factory parameters for free, or unlock higher speed limits through in-app purchases. Features include anti-theft locking and advanced mapping customization.
- Customize engine mapping
- Unlock speed limits
- Anti-theft engine lock
- Preset and custom mappings
- Free parameter adjustments
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** WARNING: WITH THE LATEST FIRMWARE VERSION (4.9.0 OR HIGHER) THE UNLOCK 32 KM/H (20 MPH) IS NOT COMPATIBLE ** ** WARNING: IT IS NOT COMPATIBLE WITH EP8 AND E7000 ENGINES ** Eplus Tutor Pro is an app, developed by Eplus, to allow maximum customization of your Shimano ebike. It is only compatible with: - Shimano Steps E8000 and SC-E8000 display - Shimano Steps E8000 and SC-E7000 display NEW FEATURES UNLOCK 32 KM/H (20 MPH) (Up to 4.8.0 firmware version) It is now possible to unlock the engine up to 32 km/h (20 mph), through an in-app purchase. N.B. This release does not allow modification of the engine mappings parameters. FEATURES ECO FREE Possibility to change the engine mapping for FREE by lowering the factory parameters. Without 'Race Unlock', it is not possible to increase the values beyond the factory ones. ANTITHEFT It is possible to lock the engine to prevent theft. UNLOCK 50 KM/H (31 MPH) (Flash Home software required) It is possible to unlock the engine up to 50 km/h (31 mph), using the Flash Home software (available only for Windows PC). For info: sales@eplus.bike RACE UNLOCK To take advantage of the "Race Unlock" it is necessary to modify the ebike using the Flash Home software (Windows). For info: sales@eplus.bike After making the change, it will be possible customize the engine mapping parameters directly from the app. You can choose from a series of preset mappings or create your own mapping. All trademarks mentioned are the property of their respective owner. Shimano does not support, does not sponsor, is not in any way to be considered us related to our company.
STUNLOCKER
This application connects to Shimano E-Bike motors via Bluetooth to provide detailed information and allow customization of various settings. Users can monitor battery health, adjust assist levels, change gearing configurations, and manage light settings for a personalized riding experience.
- 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
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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.
Screenshots
Verdict
The clearest difference is review sentiment: STUNLOCKER at 74% against Eplus Tutor Pro's 13%. STUNLOCKER also leads on rating (4.0 vs 1.0) and in-app purchases (none vs 2). On price, update cadence, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Eplus Tutor Pro sells 2 one-off in-app purchases. STUNLOCKER asks for nothing beyond the download.
STUNLOCKER holds the better App Store score, 4.0 against 1.0. That said, the two scores are not equally well evidenced: STUNLOCKER has 24 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 13% of Eplus Tutor Pro's written reviews are positive against 74% of STUNLOCKER's.
Eplus Tutor Pro ships an update every 5 weeks, STUNLOCKER monthly. The most recent releases landed on September 23, 2026 and October 5, 2026 respectively.
| Parameter | Eplus Tutor Pro | STUNLOCKER |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (2 ratings) | 4.0 (24 ratings) — better |
| Positive reviews | 12.5% of reviews | 73.6% of reviews — better |
| Number of ratings | 2 | 24 — better |
| Update frequency | Every 5 weeks | Monthly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 12.0 — better | 12.1 |
| Further details — not scored | ||
| Size | 20 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Eguides | Vadim Bukin |
Customer experience
Eplus Tutor Pro
STUNLOCKER
Bugs and requests
Eplus Tutor Pro
Not enough reviews yet to summarise bugs or requests.
STUNLOCKER
Reported bugs
14 issues- One unit does not work
- Customer service is outrageous and sarcastic
- Does not work for changing settings to USA
- Keeps asking to turn bike off and on, use default pin, or no Bluetooth connection
- Doesn't appear to be a way to switch to imperial units
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- Motor warranty void
- Premium license not working
- Does not support Mac or iPhone
- Premium features menu items don't show up
- License took about 3 mins to get in the email (positive, but implies a process)
- Email requests for optional features receive no response
- License not received after payment
- Duplicate serial number issue
- App is good, but trying to get the license is difficult
Requested features
5 requests- Add possibility to change full power to 600w and 100nm on EP8
- Upping the speed limiter on RS motor
- Compatibility with Speedbox
- Imperial units option
- Dark mode option
In-app purchases
Eplus Tutor Pro
- Racing Eplus$0.99
- Racing 32 Eplus$54.99
STUNLOCKER
No in-app purchases
Questions
Is Eplus Tutor Pro free?
Is STUNLOCKER free?
Which has better reviews, Eplus Tutor Pro or STUNLOCKER?
Do Eplus Tutor Pro or STUNLOCKER have ads?
Which is updated more often, Eplus Tutor Pro or STUNLOCKER?
Other comparisons
