# Flip Clock Pro vs Quad Calcs

The clearest difference is price: Quad Calcs at Free against Flip Clock Pro's $2.99. Quad Calcs also leads on update cadence (every 2 weeks vs every 2 months). Flip Clock Pro's advantage is ads (none vs shown). On in-app purchases, device support and iOS requirement there is nothing between them.

Quad Calcs is free to download; Flip Clock Pro costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Flip Clock Pro ships an update every 2 months, Quad Calcs every 2 weeks. The most recent releases landed on October 21, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Flip Clock Pro | Quad Calcs |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[4.6 (1.5K ratings)](https://appshunter.io/ios/app/flip-clock-pro-time-widgets/id1181029289/reviews)** | — |
| Number of ratings | **1.5K** | — |
| Positive reviews | 74.1% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Paid | — |
| Size | 46 MB | 36 MB |
| Requires iOS | **15.0** | 15.8.3 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [翠玲 施](https://appshunter.io/developer/1181028776) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### Flip Clock Pro

[App page](https://appshunter.io/ios/app/flip-clock-pro-time-widgets/id1181029289)

A minimalist desktop digital clock offering a variety of customization options. It displays time with seconds, includes a smart alarm, timer, stopwatch, and Pomodoro timer. The app also supports white noise and personalized signatures.

**Highlights:** Display time with seconds, Smart alarm clock, Timer and stopwatch, Pomodoro Technique timer, Multiple clock themes, Background white noise playback, Home and lock screen widgets

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Great app with lots of customization options
- 👍 Useful features like alarm clock and vertical flip clock
- 👍 Simple and clean interface
- 👍 Visible from a distance
- 👍 Nostalgic retro style

**What reviewers complain about**

- 🐛 Occasional crashes and bugs
- 🐛 Inconsistent sound and alarm issues
- 🐛 Seconds digit freezing up
- 🐛 Widget not respecting app settings
- 🔋 Brightness issues and screen burn-in concerns

**Reported bugs**

- Seconds digit freezing
- Widget not showing 12-hour time format
- Brightness issues when leaving app open
- Inconsistent sound and alarm problems

**Requested features**

- Add more alarm sound options
- Allow customization of alarm sound from music library
- Implement a snooze function
- Add ability to set multiple alarm times
- Provide more color and font customization options


### Quad Calcs

[App page](https://appshunter.io/ios/app/quad-calcs/id6741951453)

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

**In-app purchases:** none


## Frequently asked questions

### Is Flip Clock Pro free?

Flip Clock Pro costs $2.99, with no in-app purchases.

### Is Quad Calcs free?

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

### Do Flip Clock Pro or Quad Calcs have ads?

Quad Calcs shows ads; Flip Clock Pro does not.

### Which is updated more often, Flip Clock Pro or Quad Calcs?

Flip Clock Pro ships an update every 2 months, and Quad Calcs every 2 weeks. Most recently, Flip Clock Pro was updated on October 21, 2026 and Quad Calcs on October 4, 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.*