# 热链云 vs Sentarm

The clearest difference is in-app purchases: 热链云 at none against Sentarm's 4. 热链云 also leads on iOS requirement (13.0 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Sentarm sells 4 one-off in-app purchases. 热链云 asks for nothing beyond the download.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 18, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | 热链云 | Sentarm |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.2 (5 ratings)](https://appshunter.io/ios/app/sentarm/id6747161489/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | Weekly |
| Monetization | — | Free with in-app purchases |
| Size | 79 MB | 45 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [北京创今世纪科技有限公司](https://appshunter.io/developer/1278222382) | [永康 梁](https://appshunter.io/developer/1789349442) |

## What reviewers say

### 热链云

[App page](https://appshunter.io/ios/app/id1620178018)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sentarm

[App page](https://appshunter.io/ios/app/sentarm/id6747161489)

This smart alarm assistant simplifies setting alarms for complex and rotating schedules. It offers holiday recognition, custom calendars, and a minimalist interface for ease of use. Widgets, dark mode, and multi-language support enhance the user experience.

**Highlights:** Customizable work schedule alarms, Automatic holiday and special date skipping, Multiple regional and custom calendars, Convenient alarm and calendar widgets, Dark mode and multi-language support

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Custom Sound | Free | one-time |
| Custom Calendar | $0.99 | one-time |
| Widgets | $0.99 | one-time |
| Missions | $1.99 | one-time |


## Frequently asked questions

### Is 热链云 free?

热链云 is free to download, with no in-app purchases.

### Is Sentarm free?

Sentarm is free to download, with in-app purchases available.

### Do 热链云 or Sentarm have ads?

Neither 热链云 nor Sentarm shows ads.

### Which is updated more often, 热链云 or Sentarm?

热链云 ships an update weekly, and Sentarm weekly. Most recently, 热链云 was updated on October 18, 2026 and Sentarm on October 23, 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.*