STUNLOCKER vs e
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
e
This app connects to compatible e-bike devices to display real-time riding information, including speed and heart rate. It records your cycling activities, generates FIT files, and allows for automatic or manual uploads to Strava. Review and edit your past rides with weekly, monthly, and yearly summaries.
- Large sync display for e-bike data
- Personal sub-screen with selectable orientation
- Records riding activity as FIT files
- Auto/manual upload to Strava
- Heart rate monitor integration
- Activity review and editing
- Weekly, monthly, yearly activity summaries
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Features: App have large sync display and self selectable personal sub screen selectable vertical or horizontal display. If APP connection with specify e-bike device, the e-bike information will sync display on the app. App using phone and GPS to record your riding activity as FIT file, you can auto/manual upload it to your STRAVA account. For review or share activities to your friends. If APP connection with Echowell Bluetooth heart rate monitor, will display riding information on the app. You can review or edit your activity records on the app. App auto summary you total activity information by the week , month , Year for you reference. Compatible Device : YAMAHA Display C YAMAHA Interface X ECHOWELL STD200 ECHOWELL STD700 ECHOWELL DMH30
Screenshots
Verdict
The clearest difference is review sentiment: STUNLOCKER at 74% against e's 17%. STUNLOCKER also leads on update cadence (monthly vs every 3 months) and ratings volume (24 vs 1). e's advantage is rating (5.0 vs 4.0). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.
e holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: STUNLOCKER has 24 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 74% of STUNLOCKER's written reviews are positive against 17% of e's, so the app with the better star average is not the one people write more warmly about.
STUNLOCKER ships an update monthly, e every 3 months. The most recent releases landed on October 5, 2026 and September 28, 2026 respectively.
| Parameter | STUNLOCKER | e |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (24 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 73.6% of reviews — better | 16.7% of reviews |
| Number of ratings | 24 — better | 1 |
| Update frequency | Monthly — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 12.1 — better | 14.0 |
| Further details — not scored | ||
| Size | 14 MB | 30 MB |
| Age rating | 4+ | 4+ |
| Developer | Vadim Bukin | ECHOWELL ELECTRONIC CO., LTD |
Customer experience
STUNLOCKER
e
Bugs and 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
e
Not enough reviews yet to summarise bugs or requests.
In-app purchases
STUNLOCKER
No in-app purchases
e
No in-app purchases
