# Flip Clock Pro vs Nixie Tube Timer

The clearest difference is in-app purchases: Nixie Tube Timer at none against Flip Clock Pro's 3. Nixie Tube Timer also leads on update cadence (every 3 days vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Flip Clock Pro sells 3 in-app purchases, starting at $0.29 per month. Nixie Tube Timer asks for nothing beyond the download.

Flip Clock Pro ships an update every 4 months, Nixie Tube Timer every 3 days. The most recent releases landed on October 15, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Flip Clock Pro | Nixie Tube Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/flip-clock-pro-desk-clock/id6758658957/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 days** |
| Monetization | Paid | — |
| Size | 16 MB | 85 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [颖 杨](https://appshunter.io/developer/1872549512) | [Good Gary Apps LLC](https://appshunter.io/developer/6805500311) |

## What reviewers say

### Flip Clock Pro

[App page](https://appshunter.io/ios/app/flip-clock-pro-desk-clock/id6758658957)

This app offers a minimalist clock, a professional Pomodoro timer with white noise, and a versatile stopwatch. It features intuitive gestures, personalized themes, and fluid interactions for a distraction-free time management experience.

**Highlights:** Minimalist full-screen clock, Immersive Pomodoro timer with white noise, Versatile stopwatch and countdown timer, Customizable themes and digit animations, Intuitive gesture controls, Ad-free experience

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro | $0.29 | per month |
| Yearly Pro (Best Value) | $0.69 | per year |
| Lifetime Pro | $2.99 | one-time |


### Nixie Tube Timer

[App page](https://appshunter.io/ios/app/nixie-tube-timer-countdown/id6807435836)

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

**In-app purchases:** none


## Frequently asked questions

### Is Flip Clock Pro free?

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

### Is Nixie Tube Timer free?

Nixie Tube Timer is free to download, with no in-app purchases.

### Do Flip Clock Pro or Nixie Tube Timer have ads?

Neither Flip Clock Pro nor Nixie Tube Timer shows ads.

### Which is updated more often, Flip Clock Pro or Nixie Tube Timer?

Flip Clock Pro ships an update every 4 months, and Nixie Tube Timer every 3 days. Most recently, Flip Clock Pro was updated on October 15, 2026 and Nixie Tube Timer on October 7, 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.*