# ISD Link — Interact with smart devices

> Smart device interaction app with local data storage and Bluetooth connectivity. (iPhone/iPad app by SHENZHEN ISD TECHNOLOGY CO.,LTD.)

- Source: https://appshunter.io/ios/app/isd-link/id1568620244 (this page in markdown: same URL + `.md`)
- Developer: [SHENZHEN ISD TECHNOLOGY CO.,LTD](https://appshunter.io/developer/1405370693)
- Category: Utilities
- Price: Free
- Rating: 2.09/5 from 23 App Store ratings · 81 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 61 MB
- Languages: English, French, German, Italian, Japanese, Chinese, Spanish, Chinese
- Released: 2021-08-14
- Data updated: 2026-06-22
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/isd-link/id1568620244/reviews.md

## What is ISD Link?

ISD Link is an APP specially designed for smart device interaction. 
1. ISD Link does not have an account registration function, and all data on the device is saved locally and will not be uploaded to remote servers. It promises not to collect user information.
2. During use of ISD Link, Bluetooth needs to be turned on for device scanning and connection.
3.ISD Link supports the following devices: TESTV co-branded model PB25DW, TESTV co-branded model PB40, MAG20, PB70W, PB40, PB50DW, PB10DW, PB25DW, ZIP, Power200 series, EDGE, NP2GO, 608PD, A8Air, A4Air, Air8, C4Air, B80 /B60, K4, X16, K2Air, NP2Air, LP2Air.

## Key features

- Smart device interaction
- Local data saving
- No account registration
- Bluetooth connectivity
- Supports numerous device models

## Recent user reviews (10 of 81)

All indexed reviews: https://appshunter.io/ios/app/isd-link/id1568620244/reviews.md

### 1/5 — 点开zip后会闪退

*2026-02-27, version 1.8.3*

请看看到底是什么原因

### 1/5 — Nutzlose APP

*2025-11-04, version 1.8.3*

Ich sehe nur die Daten wie auf dem Display. Keine Einstellungen sichtbar, kein Update Fenster nichts. Absolut wertlos

### 1/5 — A8air not linking to anymore

*2025-11-01, version 1.8.3*

No longer shows my 4 A8 Air chargers in the app, can’t get them to link at all? What the fix here

### 2/5 — Poor connectivity

*2025-07-04, version 1.8.1*

App loads and connects on latest iOS iPhone/ipad but the live data does not update when charging

### 2/5 — Potentially dangerous

*2025-05-27, version 1.8.1*

Using the 608PD charger to charge a 12V Lead acid battery with a custom charging task at 6S it inputs 21V. When you use the preset tasks it gives 15V which is what you would expect. This is potentially dangerous if it happens with other battery chemistries and will damage your batteries. Please fix. This was a bug that happened to me once though once is enough to burn your house down. Always look at what the charger is doing.

### 1/5 — Firmware fails to update

*2025-05-02, version 1.8.1*

Basically have an A8 Air charger and every time I connect to it the firmware update pop up requests to update… I try, it cycles for minutes through thr update only to remain showing the original firmware. Pointless if it can’t actually update its own firmware. Loops spiral into always doing the same thing. Ghastly engineering.

### 1/5 — Failed firmware update

*2025-04-30, version 1.8.1*

The firmware update just kept looping itself and never truly finish. It has bricked the device.

### 1/5 — C’est une véritable escroquerie, ne marche ni avec iphone ni avec iwatch.

*2025-04-18, version 1.8.1*

C’est une véritable escroquerie, ne marche ni avec iphone ni avec iwatch, c’est pour cela que que le matériel associé à ce logiciel est bradé sur les sites Internet.

### 1/5 — STILL NO NOTIFICATIONS OF CHARGE COMPLETE !

*2025-04-13, version 1.8.1*

UPDATE 26MAR2025: STILL NO NOTIFICATIONS WHEN CHARGING COMPLETE. OVER A YEAR THIS HAS BEEN HAPPENING. UPDATE 30/6/23: The recent update DID NOT fix the issue of not getting an alert when charging complete. You said this new update would fix this issue but it didn’t. The only way I get an alert is if I first open the app up and check the status of charging. I shouldn’t need to have the app open to get alerts. Before the last two updates it worked, now it doesn’t. I have 4 of these chargers, and if this is not fixed in the next couple of weeks, I will return them back to Amazon for refund. UPDATE 22/6/23: After the recent update I no longer get notifications that a battery has completed charging. As soon as I open the app I get the notification. I should still get a notification when I’m out of the app, but I don’t. It worked yesterday, but you’ve broken it with the new update !!! Bought an Air A4 today and found some bugs. 1) The notification you get when a cell is finished charging, the cell slot is wrong. So, when it says “CH2: Fast charges done” it means Channel 3 !!. CH1 is CH4, CH2 is CH3, CH3 is CH2 and CH4 is CH1. It’s completely round the wrong way. 2) A lot of the time when I change the parameters they don’t change and I have to reapply them again and again. For example, I tried to change the Charge Current to 1A and it stayed at 0.3A, I did this twice and it stayed at 0.3A. I had to do it 3 times before it would change. 3) The charge rate (mA) is very inaccurate, I charged an AA up, the display said it was charging at 500mA yet it took nearly 3 hours to put 1A into it. This means the true figure was 333mA, not the reported 500mA. If these bugs were ironed out then these would be great little chargers.

### 1/5 — Does Not Work with N8

*2025-03-25, version 1.7.2*

Doesnt work for N8

## Frequently asked questions about ISD Link

### What does ISD Link do?

ISD Link is an application designed for interacting with various smart devices. It enables users to control and manage their compatible smart devices directly from their smartphone.

### How does ISD Link handle user data?

ISD Link prioritizes user privacy by not having an account registration function. All data generated during use is saved locally on the device and is not uploaded to remote servers. The app promises not to collect any user information.

### What are the requirements to use ISD Link?

To use ISD Link, Bluetooth needs to be turned on on your device. This is essential for scanning and connecting to the smart devices supported by the application.

### Is ISD Link free to use?

Yes, ISD Link is a free application. There are no charges associated with downloading or using its core functionalities for interacting with compatible smart devices.

### Which devices are compatible with ISD Link?

ISD Link supports a wide range of devices including TESTV co-branded models (PB25DW, PB40), MAG20, PB70W, PB50DW, PB10DW, PB25DW, ZIP, Power200 series, EDGE, NP2GO, 608PD, A8Air, A4Air, Air8, C4Air, B80 /B60, K4, X16, K2Air, NP2Air, and LP2Air.

## Version history (last 5 releases)

### 1.8.5 — 2026-06-12

1.Resolved known issues

### 1.8.4 — 2026-04-07

1.Resolved known issues

### 1.8.3 — 2025-10-01

1.Add the F160
2.Fix the B80 firmware update (issues)

### 1.8.2 — 2025-09-29

1.Add the F160
2.Fix the B80 firmware update (issues)

### 1.8.1 — 2025-04-09

Fix B80 Crash

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## More apps by SHENZHEN ISD TECHNOLOGY CO.,LTD

- [ISD Go](https://appshunter.io/ios/app/isd-go/id1447072980)
- [BattAir](https://appshunter.io/ios/app/battair/id1546717583)
- [Polying](https://appshunter.io/ios/app/polying/id6471041609)

All apps by SHENZHEN ISD TECHNOLOGY CO.,LTD: https://appshunter.io/developer/1405370693

## Related topics

[isdt](https://appshunter.io/ios/topics/isdt) · [hc9801fcp4z](https://appshunter.io/ios/topics/hc9801fcp4z) · [isd link](https://appshunter.io/ios/topics/isd-link) · [isdt link](https://appshunter.io/ios/topics/isdt-link) · [isd go](https://appshunter.io/ios/topics/isd-go) · [i2u](https://appshunter.io/ios/topics/i2u)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-22.*