# Flip Clock Flow vs Nixie Tube Timer

Flip Clock Flow and Nixie Tube Timer are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Flip Clock Flow ships an update every 5 days, Nixie Tube Timer every 3 days. The most recent releases landed on October 9, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Flip Clock Flow | Nixie Tube Timer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 3 days** |
| Size | 7 MB | 85 MB |
| Requires iOS | 18.2 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Eric Savoie](https://appshunter.io/developer/1695096773) | [Good Gary Apps LLC](https://appshunter.io/developer/6805500311) |

## What reviewers say

### Flip Clock Flow

[App page](https://appshunter.io/ios/app/flip-clock-flow/id6752408901)

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

**In-app purchases:** none


### 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 Flow free?

Flip Clock Flow is free to download, with no in-app purchases.

### Is Nixie Tube Timer free?

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

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

Neither Flip Clock Flow nor Nixie Tube Timer shows ads.

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

Flip Clock Flow ships an update every 5 days, and Nixie Tube Timer every 3 days. Most recently, Flip Clock Flow was updated on October 9, 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.*