# Frequency Conversion vs Planetary Hours

The clearest difference is update cadence: Planetary Hours at monthly against Frequency Conversion's every 22 months. Frequency Conversion's advantage is price ($2.99 vs $4.99). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Frequency Conversion costs $2.99 and Planetary Hours $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Frequency Conversion ships an update every 22 months, Planetary Hours monthly. The most recent releases landed on September 30, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Frequency Conversion | Planetary Hours |
| --- | --- | --- |
| Price | **$2.99** | $4.99 |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/planetary-hours-astro-clock/id6757678864/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 22 months | **Monthly** |
| Monetization | — | Paid |
| Size | 2 MB | 16 MB |
| Requires iOS | 17.6 | **17** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Heng Jia Liang](https://appshunter.io/developer/1532000635) | [雪 蔺](https://appshunter.io/developer/1853712836) |

## What reviewers say

### Frequency Conversion

[App page](https://appshunter.io/ios/app/frequency-conversion/id6444392460)

**Features:** macOS Compatibility

**In-app purchases:** none


### Planetary Hours

[App page](https://appshunter.io/ios/app/planetary-hours-astro-clock/id6757678864)

This app provides a dynamic clock that displays planetary hours, adapting to the natural flow of the sun. It offers real-time calculations based on your location and supports various iOS features like Live Activities and Apple Watch complications for at-a-glance timing updates.

**Highlights:** Dynamic Island & Live Activities, Apple Watch Complications, StandBy & Lock Screen Widgets, Interactive Home Screen Widgets, Precision Astronomy Calculations, Offline Processing, Customizable Notifications

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Frequency Conversion free?

Frequency Conversion costs $2.99, with no in-app purchases.

### Is Planetary Hours free?

Planetary Hours costs $4.99, with no in-app purchases.

### Do Frequency Conversion or Planetary Hours have ads?

Neither Frequency Conversion nor Planetary Hours shows ads.

### Which is updated more often, Frequency Conversion or Planetary Hours?

Frequency Conversion ships an update every 22 months, and Planetary Hours monthly. Most recently, Frequency Conversion was updated on September 30, 2026 and Planetary Hours on September 29, 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.*