# ISD Go vs Duration Tracker

The clearest difference is device support: ISD Go at 4 against Duration Tracker's 1. ISD Go also leads on iOS requirement (11.0 vs 26.0). 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 weekly. The most recent releases landed on September 29, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | ISD Go | Duration Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.8 (30 ratings)](https://appshunter.io/ios/app/isd-go/id1447072980/reviews)** | — |
| Number of ratings | **30** | — |
| Positive reviews | 18.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | Weekly |
| Monetization | Free | — |
| Size | 26 MB | 9 MB |
| Requires iOS | **11.0** | 26.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [深圳艾斯特创新科技有限公司](https://appshunter.io/developer/1405370693) | [Myung Geun Choi](https://appshunter.io/developer/1384350201) |

## What reviewers say

### ISD Go

[App page](https://appshunter.io/ios/app/isd-go/id1447072980)

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

**In-app purchases:** none


### Duration Tracker

[App page](https://appshunter.io/ios/app/duration-tracker/id6759609367)

**In-app purchases:** none


## Frequently asked questions

### Is ISD Go free?

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

### Is Duration Tracker free?

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

### Do ISD Go or Duration Tracker have ads?

Neither ISD Go nor Duration Tracker shows ads.

### Which is updated more often, ISD Go or Duration Tracker?

ISD Go ships an update weekly, and Duration Tracker weekly. Most recently, ISD Go was updated on September 29, 2026 and Duration Tracker on September 14, 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.*