YouFs vs Speed Master EE
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
YouFs
Connect to your electric scooter or bicycle via Bluetooth to monitor vehicle status, lock/unlock remotely, and track riding data. Adjust settings, check battery voltage, and diagnose faults for convenient maintenance.
- Bluetooth connection to vehicle
- Remote lock/unlock
- Real-time vehicle status monitoring
- GPS positioning
- Speed and gear adjustment
- Fault self-inspection
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YouFS APP is an APP developed by Shenzhen Yongfengshun Technology Co., Ltd. for electric scooters, lithium trams, bicycles and other controllers. Automatically by the mobile phone bluetooth wireless connection electric scooter, the connection is successful after can get a lot of information to the vehicle on the mobile phone APP can be remotely lock the car through the APP, remote positioning, access speed, power, light condition, gear, total mileage and the mileage, riding time, boot mode information such as temperature of the battery voltage. The speed of each gear can be adjusted in the setting, and the fault status of the vehicle can be checked through the fault self-inspection, which is convenient for maintenance.
Speed Master EE
Configure and control your electric kick scooter equipped with a Speed Master kit. Adjust all features and parameters, including speed settings, via Bluetooth. Ensure compliance with local speed regulations for public roads.
- Control electric kick scooter features
- Configure parameters
- Activate/deactivate features
- Adjust speed settings
- Bluetooth connectivity
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Control and configure your Speed Master with this free utility. Activate, adjust or deactivate all features and parameters for your electric kick scooter equipped with Speed Master kit. Requires Bluetooth connection. IMPORTANT: Depending on the country you live in, there can be maximum speed limited authorized for electric kick scooters For example: - 20 km/h in Germany - 25 km/h in the rest of Europe - 20 mph in USA etc. Maximum speed is allowed no matter the country on private road & tracks. For public road, make sure to document yourself about the speed limit that applies to your area.
Screenshots
Verdict
The clearest difference is review sentiment: YouFs at 35% against Speed Master EE's 0%. YouFs also leads on iOS requirement (14.0 vs 16). Speed Master EE's advantage is update cadence (every 3 months vs every 14 months). 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.
YouFs ships an update every 14 months, Speed Master EE every 3 months. The most recent releases landed on September 25, 2026 and September 10, 2026 respectively.
| Parameter | YouFs | Speed Master EE |
|---|---|---|
| Price | Free | Free |
| Rating | 3.4 (115 ratings) — better | — |
| Positive reviews | 35.3% of reviews — better | 0.0% of reviews |
| Number of ratings | 115 — better | — |
| Update frequency | Every 14 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 14.0 — better | 16 |
| Further details — not scored | ||
| Size | 212 MB | 31 MB |
| Age rating | 17+ | 4+ |
| Developer | Shenzhen Yongfengshun Technology Co., Ltd. | Fehr GmbH |
Customer experience
YouFs
Speed Master EE
In-app purchases
YouFs
No in-app purchases
Speed Master EE
No in-app purchases
