Comparison

ISD Go vs TSight

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

Head to head
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

TSight

Read full description

TSight turns your iPhone's LiDAR scanner into a sense of touch for the space around you. Point your phone at anything — a wall, a table, a doorway — and feel its distance through vibration. The closer the object, the stronger the pulse. An audio tone and spoken readout are available for situations where haptics alone aren't enough. WHAT IT DOES • Real-time haptic feedback — distance becomes vibration intensity • Spoken distance on demand — double-tap anywhere to hear the exact measurement • Audio tone mode — frequency rises as objects get closer • Edge detection — a distinct pulse marks depth boundaries like table edges and steps • Beacon mode — lock onto a point in space and track it as you move • Depth map — an optional colour overlay shows the full depth field at a glance DESIGNED FOR ACCESSIBILITY TSight is built for people with visual impairments and anyone who wants to sense their environment without looking. Every feature is fully accessible with VoiceOver, with custom actions for every gesture and spoken feedback at every step. WORKS ON IPHONE WITH LIDAR iPhone 12 Pro and later. FREE TRIAL Use every feature free for 21 days. Unlock permanently with a single one-time purchase — no subscription, ever.

Screenshots

ISD Go3 screens
TSight4 screens

Verdict

The call

The clearest difference is in-app purchases: ISD Go at none against TSight's 4. ISD Go also leads on device support (4 vs 1) and iOS requirement (11.0 vs 17.0). On price, update cadence and ads 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. TSight sells 4 one-off in-app purchases. ISD Go asks for nothing beyond the download.

UpkeepUpdate frequency

ISD Go ships an update weekly, TSight every 8 days. The most recent releases landed on November 2, 2026 and October 5, 2026 respectively.

Scorecard3 real differences · 7 level
ISD Go versus TSight: the parameters behind the verdict, then further details
ParameterISD GoTSight
PriceFreeFree
Rating1.8 (31 ratings) — better—
Positive reviews18.5% of reviews—
Number of ratings31 — better—
Update frequencyWeekly — betterEvery 8 days
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod, Mac — betteriPhone
Requires iOS11.0 — better17.0
Further details — not scored
Size26 MB2 MB
Age rating4+4+
Developer深圳艾斯特创新科技有限公司RM7, UAB

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

TSight

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

ISD Go

No in-app purchases

4 purchases

TSight

One-time4
  • TSight Tip — Coffee$2.99
  • TSight Tip — Supporter$6.99
  • Unlock TSight$12.99
Show 1 more
  • TSight Tip — Patron$17.99

Questions

Is ISD Go free?
ISD Go is free to download, with no in-app purchases.
Is TSight free?
TSight is free to download, with in-app purchases available.
Do ISD Go or TSight have ads?
Neither ISD Go nor TSight shows ads.
Which is updated more often, ISD Go or TSight?
ISD Go ships an update weekly, and TSight every 8 days. Most recently, ISD Go was updated on November 2, 2026 and TSight on October 5, 2026.

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