STUNLOCKER vs eTrax Rider
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.
eTrax Rider
This app enhances electric bike and motorcycle rides with real-time tracking, safety features like crash detection and SOS, and social sharing of live locations. It also provides smart range predictions and community hazard alerts.
- Real-time ride tracking (route, speed, distance)
- Live location sharing with friends
- Crash detection and one-tap SOS
- Smart range prediction
- Community hazard alerts
- Service log and bike data tracking
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eTrax is the premium companion app for electric bike and motorcycle riders. Track every ride, share your live location with friends, get warned about hazards on your route, and stay safe with crash detection and one-tap SOS. REAL RIDE TRACKING Tap Begin Ride and eTrax records your route, distance, top speed, average speed, duration, and battery use. Every ride is saved to your history with a beautiful stats summary you can share. SAFETY FIRST - One-tap SOS texts your emergency contacts your live GPS pin - Crash detection runs in the background during rides - Medical info screen for first responders - Always-visible Call 911 button when SOS is active LIFE360 FOR RIDERS Create circles with friends and family. They see your live position, ride status, and battery while you're sharing. Pause sharing whenever you want. NEVER GET LOST OR LOW Smart range engine learns your bike's energy use over time, factors in weather, wind, and elevation. Always know how far you can ride before turning back. CHALLENGE FRIENDS Race a friend point-to-point. Both phones drop a finish pin, count down together, and the first to arrive wins Sparks — eTrax's in-app currency for real-world rewards. COMMUNITY ALERTS Drop pins for police, potholes, road cameras, scenic spots, and group rides. See alerts other riders dropped near your route. Confirm or dismiss to keep the map accurate. YOUR BIKE, YOUR DATA - 270+ e-bike and motorcycle models supported (Super73, Sur-Ron, Talaria, Stark, Onyx, Zero, and more) - Personal Wh/km efficiency tracked per bike - Service log so you know when to swap chains and check brakes - US units (miles + lbs) by default, switchable to metric in Settings PRIVACY-FIRST Your location data stays yours. We don't sell data, ever. Delete your account in one tap and everything is gone. eTrax is built by riders, for riders. Welcome to the crew.
Screenshots
Verdict
The clearest difference is rating: eTrax Rider at 4.7 against STUNLOCKER's 4.0. eTrax Rider also leads on review sentiment (100% vs 74%). STUNLOCKER's advantage is ratings volume (24 vs 3) and iOS requirement (12.1 vs 15.1). 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.
eTrax Rider holds the better App Store score, 4.7 against 4.0. That said, the two scores are not equally well evidenced: STUNLOCKER has 24 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 74% of STUNLOCKER's written reviews are positive against 100% of eTrax Rider's.
| Parameter | STUNLOCKER | eTrax Rider |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (24 ratings) | 4.7 (3 ratings) — better |
| Positive reviews | 73.6% of reviews | 100.0% of reviews — better |
| Number of ratings | 24 — better | 3 |
| Update frequency | Monthly | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 12.1 — better | 15.1 |
| Further details — not scored | ||
| Size | 14 MB | 72 MB |
| Age rating | 4+ | 12+ |
| Developer | Vadim Bukin | ZARIFA ISA MAMATOVA |
Customer experience
STUNLOCKER
eTrax Rider
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
eTrax Rider
Not enough reviews yet to summarise bugs or requests.
In-app purchases
STUNLOCKER
No in-app purchases
eTrax Rider
No in-app purchases









