# iDeveloper vs Sentarm

The clearest difference is price: Sentarm at Free against iDeveloper's $0.29. iDeveloper's advantage is in-app purchases (none vs 4) and iOS requirement (17.0 vs 26.0). On update cadence, ads and device support there is nothing between them.

Sentarm is free to download; iDeveloper costs $0.29 up front. Sentarm sells 4 one-off in-app purchases. iDeveloper asks for nothing beyond the download.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 4, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | iDeveloper | Sentarm |
| --- | --- | --- |
| Price | $0.29 | **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 | 14 MB | 45 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [天从 何](https://appshunter.io/developer/914453386) | [永康 梁](https://appshunter.io/developer/1789349442) |

## What reviewers say

### iDeveloper

[App page](https://appshunter.io/ios/app/ideveloper-190-plus-tools/id1240856775)

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

**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 iDeveloper free?

iDeveloper costs $0.29, with no in-app purchases.

### Is Sentarm free?

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

### Do iDeveloper or Sentarm have ads?

Neither iDeveloper nor Sentarm shows ads.

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

iDeveloper ships an update weekly, and Sentarm weekly. Most recently, iDeveloper was updated on October 4, 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.*