# gravity clock vs Luke Roberts

The clearest difference is review sentiment: gravity clock at 89% against Luke Roberts's 25%. gravity clock also leads on rating (4.8 vs 3.7) and ratings volume (18 vs 3). Luke Roberts's advantage is price (Free vs $0.99). On update cadence, ads, in-app purchases and device support there is nothing between them.

Luke Roberts is free to download; gravity clock costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

gravity clock holds the better App Store score, 4.8 against 3.7. That said, the two scores are not equally well evidenced: gravity clock has 18 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 89% of gravity clock's written reviews are positive against 25% of Luke Roberts's.

gravity clock ships an update every 2 months, Luke Roberts every 3 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | gravity clock | Luke Roberts |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.8 (18 ratings)](https://appshunter.io/ios/app/gravity-clock/id363623428/reviews)** | [3.7 (3 ratings)](https://appshunter.io/ios/app/luke-roberts/id1087783514/reviews) |
| Number of ratings | **18** | 3 |
| Positive reviews | **88.8% of reviews** | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Paid | **Free** |
| Size | 6 MB | 51 MB |
| Requires iOS | **10.3** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [joerg piringer](https://appshunter.io/developer/358824537) | [LR Innovation Lab GmbH](https://appshunter.io/developer/1035289595) |

## What reviewers say

### gravity clock

[App page](https://appshunter.io/ios/app/gravity-clock/id363623428)

Experience time's passage through a visually stunning clock that destroys and reconstructs its face. Numbers break off and fall, creating a dynamic and beautiful display of seconds ticking by.

**Highlights:** Realistic gravity/physics simulation, Digital and analog modes, Customizable gravity strength and direction, Night mode, Time speaking functionality, Customizable colors

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

**In-app purchases:** none

**What reviewers like**

- 🌟 Mesmerizing visuals
- ⏰ Reliable alarm clock
- 🎨 Customizable color options
- 🕰️ Analog and digital clock modes
- 🔄 Gravity and anti-gravity effects

**What reviewers complain about**

- 🐛 Crashes when opening settings
- 🕰️ Analog and digital clocks show different times
- 🔋 Battery draining
- 🔍 Small clock face on some devices

**Reported bugs**

- Crashes at midnight
- Twitter integration not working

**Requested features**

- Add Arabic-Indic numerals
- Restore alarm function
- Implement 64-bit support for iOS 11
- Add countdown timer
- Allow setting clock as device screensaver


### Luke Roberts

[App page](https://appshunter.io/ios/app/luke-roberts/id1087783514)

Control your luvo Matrix LED Lamp with intuitive paint gestures. Adjust intensity, direction, and color to create custom lighting scenes for any mood or occasion. Save your personalized lighting designs for easy recall.

**Highlights:** Adjust light intensity, direction, and color, Paint light with gestures, Control downlight and uplight independently, Create and save personalized lighting scenes, Utilize preset light scenes, Design glare-free indirect lighting

**In-app purchases:** none


## Frequently asked questions

### Is gravity clock free?

gravity clock costs $0.99, with no in-app purchases.

### Is Luke Roberts free?

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

### Which has better reviews, gravity clock or Luke Roberts?

gravity clock is rated higher. gravity clock averages 4.8 out of 5 from 18 ratings, while Luke Roberts averages 3.7 from 3 ratings.

### Do gravity clock or Luke Roberts have ads?

Neither gravity clock nor Luke Roberts shows ads.

### Which is updated more often, gravity clock or Luke Roberts?

gravity clock ships an update every 2 months, and Luke Roberts every 3 months. Most recently, gravity clock was updated on November 1, 2026 and Luke Roberts on November 2, 2026.

---

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