Comparison

ISD Go vs FLYROTOR ESC

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head

ISD Go

ISDT

Free

🔧 Utilities

★ 1.831 ratingsView app →

About

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.

Highlights

Connect BLE smart devices
Wireless device operation
Automatic firmware detection
Firmware upgrades
User-friendly interface

Read full description

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.

About

FLYROTOR ESC

Read full description

FLYROTOR ESC is the official app for compatible FLYROTOR ESC devices.

Screenshots

ISD Go3 screens

FLYROTOR ESC4 screens

Verdict

The call

The clearest difference is device support: ISD Go at 4 against FLYROTOR ESC's 1. ISD Go also leads on iOS requirement (11.0 vs 17.0). On price, update cadence, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

ISD Go ships an update weekly, FLYROTOR ESC every 2 weeks. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level

ISD Go versus FLYROTOR ESC: the parameters behind the verdict, then further details
Parameter	ISD Go	FLYROTOR ESC
Price	Free	Free
Rating	1.8 (31 ratings) — better	—
Positive reviews	18.5% of reviews	—
Number of ratings	31 — better	—
Update frequency	Weekly — better	Every 2 weeks
Ads	No	No
In-app purchases	No	No
Monetization	Free	—
Devices	iPhone, iPad, iPod, Mac — better	iPhone
Requires iOS	11.0 — better	17.0
Further details — not scored
Size	26 MB	3 MB
Age rating	4+	12+
Developer	深圳艾斯特创新科技有限公司	锐李

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

Show 51 more

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 more

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

FLYROTOR ESC

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

ISD Go

No in-app purchases

None

FLYROTOR ESC

No in-app purchases

Questions

Is ISD Go free?

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

Is FLYROTOR ESC free?

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

Do ISD Go or FLYROTOR ESC have ads?

Neither ISD Go nor FLYROTOR ESC shows ads.

Which is updated more often, ISD Go or FLYROTOR ESC?

ISD Go ships an update weekly, and FLYROTOR ESC every 2 weeks. Most recently, ISD Go was updated on November 2, 2026 and FLYROTOR ESC on October 31, 2026.