# STUNLOCKER vs GD Members

The clearest difference is iOS requirement: STUNLOCKER at 12.1 against GD Members's 16.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 21, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | STUNLOCKER | GD Members |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (24 ratings)](https://appshunter.io/ios/app/stunlocker/id1470219023/reviews)** | — |
| Number of ratings | **24** | — |
| Positive reviews | 73.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Monetization | Free | — |
| Size | 14 MB | 14 MB |
| Requires iOS | **12.1** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Vadim Bukin](https://appshunter.io/developer/1470219022) | [Andreas Saurer](https://appshunter.io/developer/1499110533) |

## What reviewers say

### STUNLOCKER

[App page](https://appshunter.io/ios/app/stunlocker/id1470219023)

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.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🚀 Works well for many users
- 👍 Easy to use and understand
- 💡 Unlocks full potential of e-bikes
- 🚀 Quick response from developer
- 👍 Good value for money

**What reviewers complain about**

- 🐛 Does not work for some users
- 😞 Outrageous customer service (sarcastic)
- 🐛 Incompatible with certain models/firmware
- 🐛 Warranty voiding risk
- 😞 Can't buy license

**Reported bugs**

- 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

**Requested features**

- 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


### GD Members

[App page](https://appshunter.io/ios/app/gd-members/id1499110534)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is STUNLOCKER free?

STUNLOCKER is free to download, with no in-app purchases.

### Is GD Members free?

GD Members is free to download, with no in-app purchases.

### Do STUNLOCKER or GD Members have ads?

Neither STUNLOCKER nor GD Members shows ads.

### Which is updated more often, STUNLOCKER or GD Members?

STUNLOCKER ships an update monthly, and GD Members monthly. Most recently, STUNLOCKER was updated on October 21, 2026 and GD Members on October 10, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*