STUNLOCKER vs KontRoller
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.
KontRoller
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Main functionalities: - Unlock / lock the scooter - Set speed limit (1-25 km/h) - Set alarm - Set transport mode - Set kick-to-start mode - Toggle the lights (on / off) - Set name for your scooter (saved only on your phone)
Screenshots
Verdict
The clearest difference is update cadence: STUNLOCKER at monthly against KontRoller's every 26 months. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
STUNLOCKER ships an update monthly, KontRoller every 26 months. The most recent releases landed on October 13, 2026 and October 14, 2026 respectively.
| Parameter | STUNLOCKER | KontRoller |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (24 ratings) — better | — |
| Positive reviews | 73.6% of reviews | — |
| Number of ratings | 24 — better | — |
| Update frequency | Monthly — better | Every 26 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.1 — better | 12.4 |
| Further details — not scored | ||
| Size | 14 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Vadim Bukin | Varga Bros Korlatolt Felelossegu Tarsasag |
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
KontRoller
Not enough reviews yet to summarise bugs or requests.
In-app purchases
STUNLOCKER
No in-app purchases
KontRoller
No in-app purchases
Questions
Is STUNLOCKER free?
Is KontRoller free?
Do STUNLOCKER or KontRoller have ads?
Which is updated more often, STUNLOCKER or KontRoller?
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