# Prep Clock vs Planthology

The clearest difference is in-app purchases: Planthology at none against Prep Clock's 2. Prep Clock's advantage is iOS requirement (18.0 vs 26.4). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Prep Clock sells 2 in-app purchases, starting at $2.99 per month. Planthology asks for nothing beyond the download.

Prep Clock ships an update every 5 days, Planthology weekly. The most recent releases landed on October 11, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Prep Clock | Planthology |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/planthology-daily-planner/id6779658543/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 days** | Weekly |
| Monetization | — | Free |
| Size | 17 MB | 11 MB |
| Requires iOS | **18.0** | 26.4 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ryan Tinklepaugh](https://appshunter.io/developer/1883444651) | [MITCHELL THOMAS ISLER](https://appshunter.io/developer/6779658545) |

## What reviewers say

### Prep Clock

[App page](https://appshunter.io/ios/app/prep-clock-backward-timer/id6760279596)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $2.99 | per month |
| Pro Annual | $19.99 | per year |


### Planthology

[App page](https://appshunter.io/ios/app/planthology-daily-planner/id6779658543)

This app helps you optimize your daily schedule by calculating travel times between your plans and notifying you when to leave. It also allows for flexible errand planning and trip itineraries, with integrated mapping and journaling features.

**Highlights:** Leave-by time calculations, Travel mode selection (drive, walk, transit), Flexible errand planning, Trip itinerary builder, Integrated mapping and directions, Photo journaling and review summaries, Widgets and Live Activities

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

**In-app purchases:** none


## Frequently asked questions

### Is Prep Clock free?

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

### Is Planthology free?

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

### Do Prep Clock or Planthology have ads?

Neither Prep Clock nor Planthology shows ads.

### Which is updated more often, Prep Clock or Planthology?

Prep Clock ships an update every 5 days, and Planthology weekly. Most recently, Prep Clock was updated on October 11, 2026 and Planthology on October 24, 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.*