# onshift vs Sentarm

The clearest difference is iOS requirement: onshift at 16 against Sentarm's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. onshift sells 2 one-off in-app purchases and Sentarm sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

onshift ships an update every 6 days, Sentarm weekly. The most recent releases landed on October 7, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | onshift | 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 | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Weekly |
| Monetization | — | Free with in-app purchases |
| Size | 3 MB | 45 MB |
| Requires iOS | **16** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [朱涛 戴](https://appshunter.io/developer/1675226784) | [永康 梁](https://appshunter.io/developer/1789349442) |

## What reviewers say

### onshift

[App page](https://appshunter.io/ios/app/onshift-autoalarm/id6502572759)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Permanent VIP | $2.99 | one-time |
| Permanent VIP | $9.99 | one-time |


### 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 onshift free?

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

### Is Sentarm free?

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

### Do onshift or Sentarm have ads?

Neither onshift nor Sentarm shows ads.

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

onshift ships an update every 6 days, and Sentarm weekly. Most recently, onshift was updated on October 7, 2026 and Sentarm on October 5, 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.*