# Sentarm vs UltraTimerGo

The clearest difference is review sentiment: UltraTimerGo at 100% against Sentarm's 50%. UltraTimerGo also leads on rating (4.8 vs 4.2) and in-app purchases (none vs 4). On price, ratings volume, update cadence and ads there is nothing between them.

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

UltraTimerGo holds the better App Store score, 4.8 against 4.2. Both are backed by a comparable volume of ratings — 5 and 5 respectively. Written reviews point the same way: 50% of Sentarm's written reviews are positive against 100% of UltraTimerGo's.

Sentarm ships an update weekly, UltraTimerGo every 5 days. The most recent releases landed on June 24, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Sentarm | UltraTimerGo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (5 ratings)](https://appshunter.io/ios/app/sentarm/id6747161489/reviews) | **[4.8 (5 ratings)](https://appshunter.io/ios/app/ultratimergo/id6751472255/reviews)** |
| Number of ratings | 5 | 5 |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | **Every 5 days** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 45 MB | 7 MB |
| Requires iOS | 26.0 | **17.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [永康 梁](https://appshunter.io/developer/1789349442) | [Josep Vicent Ibanez Piera](https://appshunter.io/developer/1740562168) |

## 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 |


### UltraTimerGo

[App page](https://appshunter.io/ios/app/ultratimergo/id6751472255)

This app offers a visually clear and simple timer experience for various activities like cooking, workouts, and study sessions. It features color-coded progress arcs and voice commands for easy use, even from a distance.

**Highlights:** Countdown timer with analog clock, Customizable presets with icons, Visual progress with color feedback, Voice commands and announcements, Multiple alarm sounds, Light, dark, and system themes

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

**In-app purchases:** none


## Frequently asked questions

### Is Sentarm free?

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

### Is UltraTimerGo free?

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

### Which has better reviews, Sentarm or UltraTimerGo?

UltraTimerGo is rated higher. Sentarm averages 4.2 out of 5 from 5 ratings, while UltraTimerGo averages 4.8 from 5 ratings.

### Do Sentarm or UltraTimerGo have ads?

Neither Sentarm nor UltraTimerGo shows ads.

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

Sentarm ships an update weekly, and UltraTimerGo every 5 days. Most recently, Sentarm was updated on June 24, 2026 and UltraTimerGo on September 12, 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.*