# Flip clock vs Controller Security

The clearest difference is in-app purchases: Controller Security at none against Flip clock's 2. Controller Security also leads on iOS requirement (13.0 vs 15.0). Flip clock's advantage is device support. On price there is nothing between them.

Both are free to download. Flip clock sells 2 in-app purchases, starting at $5.49 per year. Controller Security asks for nothing beyond the download.

## The numbers

| Metric | Flip clock | Controller Security |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (4.9K ratings)](https://appshunter.io/ios/app/flip-clock-no-ads/id1522242289/reviews)** | — |
| Number of ratings | **4.9K** | — |
| Positive reviews | 58.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Update frequency | Every 3 weeks | — |
| Monetization | Subscription | — |
| Size | 64 MB | 84 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [Beijing Free Calculator Technology Co., Ltd.](https://appshunter.io/developer/1457813265) | [109 Apps SAS](https://appshunter.io/developer/1503358738) |

## What reviewers say

### Flip clock

[App page](https://appshunter.io/ios/app/flip-clock-no-ads/id1522242289)

A digital clock app featuring a unique page-turning animation and customizable backgrounds. It includes white noise sounds, hourly chimes, and a timer for enhanced functionality. Personalize your display with various skins, colors, and animations.

**Highlights:** Page-turning digital clock animation, 123 White Noise Sounds, Customizable skins and colors, Hourly chime and timer functions, Charging animation, Widget support

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Clock — annual subscription | $5.49 | per year |
| Permanent purchase | $3.99 | one-time |

**What reviewers like**

- 👍 Simple and straightforward
- 🌟 Customizable clock design
- 💤 Helpful for sleep and focus
- 🕰️ Useful as a desk clock

**What reviewers complain about**

- 💰 Most features require a subscription
- 🔒 Limited functionality without paying
- 🐛 Occasional bugs and syncing issues
- 🕰️ Clock not always accurate

**Reported bugs**

- Widget freezes or stops updating
- Time display not syncing correctly
- Subscription issues and lost purchases

**Requested features**

- Add alarm clock functionality
- Allow customization of widget
- Improve dark mode/night settings
- Introduce more free features


### Controller Security

[App page](https://appshunter.io/ios/app/controller-security/id6532624778)

**In-app purchases:** none


## Frequently asked questions

### Is Flip clock free?

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

### Is Controller Security free?

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

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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.*