# Sentarm vs Activity

The clearest difference is in-app purchases: Activity at none against Sentarm's 4. Activity also leads on iOS requirement (18.4 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. Activity asks for nothing beyond the download.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on June 24, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Sentarm | Activity |
| --- | --- | --- |
| 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 | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | Weekly |
| Monetization | Free with in-app purchases | — |
| Size | 45 MB | 2 MB |
| Requires iOS | 26.0 | **18.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [永康 梁](https://appshunter.io/developer/1789349442) | [清煜 孙](https://appshunter.io/developer/1815181652) |

## What reviewers say

### 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 |


### Activity

[App page](https://appshunter.io/ios/app/activity/id6754206929)

**In-app purchases:** none


## Frequently asked questions

### Is Sentarm free?

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

### Is Activity free?

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

### Do Sentarm or Activity have ads?

Neither Sentarm nor Activity shows ads.

### Which is updated more often, Sentarm or Activity?

Sentarm ships an update weekly, and Activity weekly. Most recently, Sentarm was updated on June 24, 2026 and Activity on September 19, 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.*