# UseIRIS vs OnClock

The clearest difference is price: UseIRIS at Free against OnClock's $0.99. UseIRIS also leads on rating (3.8 vs 2.5) and ratings volume (6 vs 2). OnClock's advantage is update cadence (every 3 weeks vs every 24 months). On ads, in-app purchases and device support there is nothing between them.

UseIRIS is free to download; OnClock costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UseIRIS holds the better App Store score, 3.8 against 2.5. Both are backed by a comparable volume of ratings — 6 and 2 respectively.

UseIRIS ships an update every 24 months, OnClock every 3 weeks. The most recent releases landed on June 2, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | UseIRIS | OnClock |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[3.8 (6 ratings)](https://appshunter.io/ios/app/useiris/id1363192543/reviews)** | [2.5 (2 ratings)](https://appshunter.io/ios/app/onclock-widget/id1533102000/reviews) |
| Number of ratings | **6** | 2 |
| Positive reviews | — | 62.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 24 months | **Every 3 weeks** |
| Monetization | **Free** | Paid |
| Size | 12 MB | 13 MB |
| Requires iOS | **10.3** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Techradium, Inc.](https://appshunter.io/developer/1363192542) | [AHN YOONJI](https://appshunter.io/developer/1056120766) |

## What reviewers say

### UseIRIS

[App page](https://appshunter.io/ios/app/useiris/id1363192543)

This app enables administrators to send mass notifications via text, voice, or recorded alerts. Recipients can view and listen to recent messages and respond to emergency alerts if the 'needs assistance' feature is enabled.

**Highlights:** Broadcast messages via text, voice, or recorded alerts, Deliver messages via SMS, phone calls, and email, View alert delivery reports, Access last ten received alerts, Respond to emergency alerts with assistance status

**Features:** macOS Compatibility

**In-app purchases:** none


### OnClock

[App page](https://appshunter.io/ios/app/onclock-widget/id1533102000)

Customize your home screen with unique clock widgets. Choose from designer fonts, personalized gradient colors, and adjustable text sizes. Enhance your widget with a background image for a personalized look.

**Highlights:** 20 designer font types, Customizable gradient colors, Adjustable time and date text size, Background image support, Home screen widget decoration

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is UseIRIS free?

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

### Is OnClock free?

OnClock costs $0.99, with no in-app purchases.

### Which has better reviews, UseIRIS or OnClock?

UseIRIS is rated higher. UseIRIS averages 3.8 out of 5 from 6 ratings, while OnClock averages 2.5 from 2 ratings.

### Do UseIRIS or OnClock have ads?

Neither UseIRIS nor OnClock shows ads.

### Which is updated more often, UseIRIS or OnClock?

UseIRIS ships an update every 24 months, and OnClock every 3 weeks. Most recently, UseIRIS was updated on June 2, 2026 and OnClock on September 7, 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.*