# Nano Timekeeper vs Flip Clock

The clearest difference is in-app purchases: Nano Timekeeper at none against Flip Clock's 1. Flip Clock's advantage is 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 sells 1 one-off in-app purchase. Nano Timekeeper asks for nothing beyond the download.

Nano Timekeeper ships an update every 4 months, Flip Clock every 3 days. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Nano Timekeeper | Flip Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (5 ratings)](https://appshunter.io/ios/app/flip-clock-zen-focus-timer/id6762340795/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 days** |
| Monetization | — | Free with in-app purchases |
| Size | 1 MB | 9 MB |
| Requires iOS | 16.4 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Alexandre Casino](https://appshunter.io/developer/1651133406) | [Hai Nam Trinh](https://appshunter.io/developer/1139152400) |

## What reviewers say

### Nano Timekeeper

[App page](https://appshunter.io/ios/app/nano-timekeeper/id6471913403)

**Features:** macOS Compatibility

**In-app purchases:** none


### Flip Clock

[App page](https://appshunter.io/ios/app/flip-clock-zen-focus-timer/id6762340795)

Transform your device into a beautiful, distraction-free desk clock. This app offers a fullscreen flip clock experience with smooth animations, customizable themes, and built-in focus tools like Pomodoro timers. It's designed for deep concentration and quiet productivity, working fully offline without ads or tracking.

**Highlights:** Fullscreen flip clock with realistic animations, Built-in Pomodoro timer (Focus/Break/Cycles), Customizable themes and clock styles, Screen stays awake for desk use, Works fully offline, Subtle haptic feedback

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Premium | $1.99 | one-time |


## Frequently asked questions

### Is Nano Timekeeper free?

Nano Timekeeper is free to download, with no in-app purchases.

### Is Flip Clock free?

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

### Do Nano Timekeeper or Flip Clock have ads?

Neither Nano Timekeeper nor Flip Clock shows ads.

### Which is updated more often, Nano Timekeeper or Flip Clock?

Nano Timekeeper ships an update every 4 months, and Flip Clock every 3 days. Most recently, Nano Timekeeper was updated on November 4, 2026 and Flip Clock on November 5, 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.*