# ISD Link vs One Tap Timer

The clearest difference is update cadence: One Tap Timer at every 2 days against ISD Link's every 3 weeks. ISD Link's advantage is iOS requirement (16.6 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

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

ISD Link ships an update every 3 weeks, One Tap Timer every 2 days. The most recent releases landed on October 24, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | ISD Link | One Tap Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.1 (23 ratings)](https://appshunter.io/ios/app/isd-link/id1568620244/reviews)** | — |
| Number of ratings | **23** | — |
| Positive reviews | 21.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Monetization | Free | — |
| Size | 3 MB | 4 MB |
| Requires iOS | **16.6** | 18.0 |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [深圳艾斯特创新科技有限公司](https://appshunter.io/developer/1405370693) | [Jin Nakamura](https://appshunter.io/developer/6802013586) |

## What reviewers say

### ISD Link

[App page](https://appshunter.io/ios/app/isd-link/id1568620244)

This app allows interaction with various smart devices. It prioritizes user privacy by saving all data locally and not collecting personal information. Bluetooth is required for device scanning and connection.

**Highlights:** Smart device interaction, Local data saving, No account registration, Bluetooth connectivity, Supports numerous device models

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### One Tap Timer

[App page](https://appshunter.io/ios/app/one-tap-timer-preset-timer/id6811255797)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ISD Link free?

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

### Is One Tap Timer free?

One Tap Timer is free to download, with no in-app purchases.

### Do ISD Link or One Tap Timer have ads?

Neither ISD Link nor One Tap Timer shows ads.

### Which is updated more often, ISD Link or One Tap Timer?

ISD Link ships an update every 3 weeks, and One Tap Timer every 2 days. Most recently, ISD Link was updated on October 24, 2026 and One Tap Timer on October 10, 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.*