# Clock Chime vs Shift Unit

The clearest difference is in-app purchases: Shift Unit at none against Clock Chime's 3. Shift Unit also leads on review sentiment (100% vs 68%) and rating (5.0 vs 4.6). Clock Chime's advantage is ratings volume (472 vs 21). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Clock Chime sells 3 in-app purchases, starting at $0.99 per month. Shift Unit asks for nothing beyond the download.

Shift Unit holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Clock Chime has 472 ratings behind it against 21, so its average is the more settled of the two. Written reviews point the same way: 68% of Clock Chime's written reviews are positive against 100% of Shift Unit's.

Clock Chime ships an update every 7 months, Shift Unit every 2 months. The most recent releases landed on September 25, 2026 and September 6, 2026 respectively.

## The numbers

| Metric | Clock Chime | Shift Unit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (472 ratings)](https://appshunter.io/ios/app/clock-chime-time-is-passing/id466715015/reviews) | **[5.0 (21 ratings)](https://appshunter.io/ios/app/shift-unit/id1514037983/reviews)** |
| Number of ratings | **472** | 21 |
| Positive reviews | 68.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 2 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 143 MB | 20 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | **iPhone, iPad, Vision Pro** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [i4islam](https://appshunter.io/developer/301048985) | [Didier Burton](https://appshunter.io/developer/1514037982) |

## What reviewers say

### Clock Chime

[App page](https://appshunter.io/ios/app/clock-chime-time-is-passing/id466715015)

This app makes tracking time fun with hourly spoken announcements that include light-hearted, humorous phrases. It offers customizable notification times and works even when the app is closed, ensuring you never miss an update with a smile.

**Highlights:** Humorous speaking clock, Hourly time announcements with jokes, Customizable notification hours, Spoken time with fun phrases, 24-hour format option, Multiple alert sounds, Themed backgrounds

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $0.99 | per month |
| Pro | $5.99 | per year |
| ثيمات رائع جديد للساعة الناطقة | $0.99 | one-time |

**What reviewers like**

- 👍 Excellent app
- 💡 Helpful for learning Arabic time
- 🚀 Reminds users of time
- 🚀 Maintains schedule during the day

**What reviewers complain about**

- 🐛 App crashes after update
- 🐛 Doesn't work with iOS 13 and newer
- 🐛 Doesn't announce time when screen is locked
- 💰 Overpriced for features provided
- 🔋 App drains battery

**Reported bugs**

- App crashes when changing sound settings
- Weather feature doesn't work, says server not found
- Time announcement doesn't work after device is locked

**Requested features**

- Add more voice options including female voices
- Improve Arabic pronunciation of time
- Add option to disable music before time announcement
- Display Arabic calendar date
- Add option to announce time every 5 or 10 minutes


### Shift Unit

[App page](https://appshunter.io/ios/app/shift-unit/id1514037983)

This utility app offers precise unit and currency conversions with over 1400 units across 34 categories. It supports light/dark modes, home widgets, and an independent Apple Watch app. Features include a custom keypad with calculator mode and educational Wikipedia integration.

**Highlights:** 1400+ conversion units, 34 categories, Light/dark mode support, Home widget, Apple Watch app, Custom keypad with calculator, Wikipedia integration

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Clock Chime free?

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

### Is Shift Unit free?

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

### Which has better reviews, Clock Chime or Shift Unit?

Shift Unit is rated higher. Clock Chime averages 4.6 out of 5 from 472 ratings, while Shift Unit averages 5.0 from 21 ratings.

### Do Clock Chime or Shift Unit have ads?

Neither Clock Chime nor Shift Unit shows ads.

### Which is updated more often, Clock Chime or Shift Unit?

Clock Chime ships an update every 7 months, and Shift Unit every 2 months. Most recently, Clock Chime was updated on September 25, 2026 and Shift Unit on September 6, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*