# Time Timer vs Sun to Moon Sleep Clock

The clearest difference is price: Time Timer at Free against Sun to Moon Sleep Clock's $2.99. Time Timer also leads on update cadence (every 2 weeks vs every 2 months) and ratings volume (15K vs 107). Sun to Moon Sleep Clock's advantage is in-app purchases (none vs 1) and review sentiment (94% vs 63%). On rating, ads and device support there is nothing between them.

Time Timer is free to download; Sun to Moon Sleep Clock costs $2.99 up front. Time Timer sells 1 in-app purchase, starting at $9.95 per year. Sun to Moon Sleep Clock asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.6 for Time Timer against 4.5 for Sun to Moon Sleep Clock. That said, the two scores are not equally well evidenced: Time Timer has 15K ratings behind it against 107, so its average is the more settled of the two. Written reviews are what separate them: 63% of Time Timer's written reviews are positive against 94% of Sun to Moon Sleep Clock's.

Time Timer ships an update every 2 weeks, Sun to Moon Sleep Clock every 2 months. Both last shipped on October 19, 2026.

## The numbers

| Metric | Time Timer | Sun to Moon Sleep Clock |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[4.6 (15K ratings)](https://appshunter.io/ios/app/time-timer/id332520417/reviews)** | [4.5 (107 ratings)](https://appshunter.io/ios/app/sun-to-moon-sleep-clock/id1052898458/reviews) |
| Number of ratings | **15K** | 107 |
| Positive reviews | 62.7% of reviews | **94.1% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Freemium | **Free** |
| Size | 174 MB | 52 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | **iPhone, iPad, Mac, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Time Timer LLC](https://appshunter.io/developer/332520420) | [Michael Sibley](https://appshunter.io/developer/1052898457) |

## What reviewers say

### Time Timer

[App page](https://appshunter.io/ios/app/time-timer/id332520417)

This app provides a visual representation of time passing, making it easier to manage tasks and routines. It's designed to be inclusive and flexible for various needs, from educational settings to personal productivity.

**Highlights:** Iconic visual timer with disappearing disk, Inclusive design for various needs, Flexible routine creation and sequencing, Multiple timers and preset options, Customizable sound, vibration, and color

**Features:** Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock all Time Timer features | $9.95 | per year |

**What reviewers like**

- 👍 Helpful for ADHD and autism
- 🚀 Great visual timer
- 👍 Customizable timers
- 👍 Useful for presentations and meetings
- 👍 Indispensable for organization and time management

**What reviewers complain about**

- 🐛 Unreliable sound/vibration alerts
- 🐛 Inconsistent behavior when phone is locked or app is minimized
- 🐛 Occasional crashes or bugs
- 🔋 Screen turns off during timer
- 👎 Subscription model for some features

**Reported bugs**

- No timers show up in app
- Timer stops working when phone is locked
- Inconsistent dark mode implementation
- Vibration doesn't work as expected

**Requested features**

- Add Apple Watch complication
- Allow rearranging of timers
- Ability to continue timer after time is up
- Option to change timer color and background
- Lock timer settings on Apple Watch


### Sun to Moon Sleep Clock

[App page](https://appshunter.io/ios/app/sun-to-moon-sleep-clock/id1052898458)

This app acts as a gentle sleep trainer for young children, visually indicating when it's time to stay in bed and when it's okay to wake up. It offers customizable features like sleep sounds, nap timers, and a reward system to encourage good sleep habits.

**Highlights:** Visual star countdown for bedtime, Customizable sleep and wake sounds, Nap timers and bedtime routine tools, Personalizable characters with outfits, Optional Snooze Rewards system, Visual shooting-star progress bar, PIN-protected settings

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Time Timer free?

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

### Is Sun to Moon Sleep Clock free?

Sun to Moon Sleep Clock costs $2.99, with no in-app purchases.

### Which has better reviews, Time Timer or Sun to Moon Sleep Clock?

Time Timer is rated higher. Time Timer averages 4.6 out of 5 from 15K ratings, while Sun to Moon Sleep Clock averages 4.5 from 107 ratings.

### Do Time Timer or Sun to Moon Sleep Clock have ads?

Neither Time Timer nor Sun to Moon Sleep Clock shows ads.

### Which is updated more often, Time Timer or Sun to Moon Sleep Clock?

Time Timer ships an update every 2 weeks, and Sun to Moon Sleep Clock every 2 months. Most recently, Time Timer was updated on October 19, 2026 and Sun to Moon Sleep Clock on October 19, 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.*