ISD Go vs Gens Ace
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ISD Go
Control and manage wireless smart devices with a user-friendly interface. Connect and operate devices via Bluetooth, and receive automatic firmware updates when new versions are available.
- Connect BLE smart devices
- Wireless device operation
- Automatic firmware detection
- Firmware upgrades
- User-friendly interface
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ISD GO is an APP specially used to connect Aster wireless smart devices, so as to provide users with a more convenient and user-friendly user interface to operate Aster's smart devices. We have added the following features in ISD GO: 1. Bind Esther BLE (Bluetooth Low Energy) smart device Users can bind Aster Bluetooth smart devices with their mobile phones, so that they can wirelessly access and operate the devices through their mobile phones. 2. Firmware upgrade When a new device firmware is released on the official website of Esther, ISD GO will automatically detect it, so as to realize the firmware upgrade of the smart device.
Gens Ace
Monitor your RC charger and battery status in real-time via Bluetooth. Track charging and discharging progress directly from your iPhone or iPad. Designed for hobbyists and professional racers seeking a safer and smarter power experience.
- Real-time status monitoring
- Bluetooth connectivity
- Charge and discharge tracking
- iPhone and iPad support
- Smart power solutions
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Gens ace is dedicated to becoming the world's most professional brand for RC power system solutions, focusing on field-specific portable smart chargers and battery interconnectivity. Our brand-new mobile app is now available, allowing you to monitor the real-time status of your charger and battery—such as charging and discharging—via Bluetooth on your iPhone or iPad. From entry-level hobbyists to professional racers, Gens ace will continue to deliver a safer, smarter and more seamless experience for using chargers and batteries together. Gens ace, we power your passion.
Screenshots
Verdict
The clearest difference is rating: Gens Ace at 3.4 against ISD Go's 1.8. Gens Ace also leads on review sentiment (40% vs 19%). ISD Go's advantage is update cadence (weekly vs every 3 weeks) and ratings volume (31 vs 7). 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.
Gens Ace holds the better App Store score, 3.4 against 1.8. Both are backed by a comparable volume of ratings — 31 and 7 respectively. Written reviews point the same way: 19% of ISD Go's written reviews are positive against 40% of Gens Ace's.
ISD Go ships an update weekly, Gens Ace every 3 weeks. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.
| Parameter | ISD Go | Gens Ace |
|---|---|---|
| Price | Free | Free |
| Rating | 1.8 (31 ratings) | 3.4 (7 ratings) — better |
| Positive reviews | 18.5% of reviews | 40.0% of reviews — better |
| Number of ratings | 31 — better | 7 |
| Update frequency | Weekly — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPod |
| Requires iOS | 11.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 26 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | 深圳艾斯特创新科技有限公司 | Shenzhen Grepow Battery Co.Ltd. |
Customer experience
ISD Go
Gens Ace
Bugs and requests
ISD Go
Reported bugs
56 issues- App crashes during updates
- Device not recognized by app
- Abnormal network connection for firmware server
- App not updated for current iOS
- Bluetooth not reconnecting
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- Inaccurate current readings
- Device disconnected during update
- No device detected
- App corrupts N series chargers
- Batteries showing incorrect discharge status
- Unable to bind to FD-200
- Bluetooth will not connect
- Computer doesn't recognize charger
- App fails to download firmware
- Drag brake not engaging
- ESC not staying connected via Bluetooth
- Timeout messages
- CM1620: inaccurate battery/power display, cut-off info
- A8 Air not seen via USB or Bluetooth
- Unstable firmware update connection
- FD200: impossible to discharge below 3.0V, limited current options, preset conflicts
- N16 recognized as N8
- App shows 'Waiting for device'
- Bluetooth drops all the time
- Does not work on iOS 16.5
- Shows wrong device (N8 instead of 16N)
- Firmware version mismatch
- K4 locked on 'UPDATE' screen
- FD-200 disconnects during discharge
- FD-200 keeps discharging regardless of parameters
- App disconnects and won't reconnect
- FD200 Bluetooth disconnects all the time
- CM1620: unstable Bluetooth, incorrect charge level display
- App does not stay connected via Bluetooth
- ESC70: times out, loses connection, resets to factory settings
- FD-200 drops Bluetooth signal
- Bluetooth dropping constantly
- App loses connection to FD200
- H605 Air error code
- New version doesn't work with H605
- App crashes constantly
- App does not remember cut off voltage
- App loses binding to device
- Fails to connect to FD-200
- Difficulty re-establishing BT connection
- K4 won't connect
- Cannot connect to FD-200
- Bluetooth connection problem
- App doesn't find FD-200
- Bluetooth connection with iPad not working
- Cannot connect with iPad or Android
- H605 Air overvolts battery packs
- Incapable of balance charge
- Font size too big on iPhone SE
- Cell voltage not displayed correctly after update
- Manual calibration doesn't work
Requested features
13 requests- Update app for current iOS
- Fix firmware update issues
- Improve Bluetooth connection stability
- Allow discharging to lower voltages (e.g., 0.0V)
- Increase discharge current options
Show 8 moreShow fewer
- Fix preset conflicts
- Improve drag brake settings
- Add dark mode
- Add balance charge option
- Improve font size for smaller screens
- Allow landscape mode on iPad
- Add charge volume in %
- Add alarm for charged battery
Gens Ace
Not enough reviews yet to summarise bugs or requests.
In-app purchases
ISD Go
No in-app purchases
Gens Ace
No in-app purchases
