# ChangeWatcher vs Geoid Calculator

The clearest difference is in-app purchases: Geoid Calculator at none against ChangeWatcher's 2. Geoid Calculator also leads on ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. ChangeWatcher sells 2 in-app purchases, starting at $0.99 per month. Geoid Calculator asks for nothing beyond the download.

## The numbers

| Metric | ChangeWatcher | Geoid Calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Weekly | — |
| Size | 33 MB | 450 MB |
| Requires iOS | **18.0** | 18.5 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Paolo Leonardi](https://appshunter.io/developer/1065225960) | [Joshua Manson](https://appshunter.io/developer/1774540729) |

## What reviewers say

### ChangeWatcher

[App page](https://appshunter.io/ios/app/changewatcher/id6739185519)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad-Free Monthly | $0.99 | per month |
| Ad-Free Yearly | $4.99 | per year |


### Geoid Calculator

[App page](https://appshunter.io/ios/app/geoid-calculator/id6754636784)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ChangeWatcher free?

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

### Is Geoid Calculator free?

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

### Do ChangeWatcher or Geoid Calculator have ads?

ChangeWatcher shows ads; Geoid Calculator does not.

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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.*