# Monarch Migration vs MonarchPatch

The clearest difference is in-app purchases: Monarch Migration at none against MonarchPatch's 4. Monarch Migration also leads on ads (none vs shown) and update cadence (every 2 months vs every 8 months). On price there is nothing between them.

Both are free to download. MonarchPatch sells 4 in-app purchases, starting at $0.99 per month. Monarch Migration asks for nothing beyond the download.

Monarch Migration ships an update every 2 months, MonarchPatch every 8 months. The most recent releases landed on October 2, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Monarch Migration | MonarchPatch |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.8 (5 ratings)](https://appshunter.io/ios/app/monarch-migration-tracking-monarch-butterfly-migration/id1023464725/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 8 months |
| Monetization | Free | — |
| Size | 100 MB | 48 MB |
| Requires iOS | **7.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Conserve.IO](https://appshunter.io/developer/651453353) | [Cetalingua, LLC](https://appshunter.io/developer/1867026326) |

## What reviewers say

### Monarch Migration

[App page](https://appshunter.io/ios/app/monarch-migration-tracking-monarch-butterfly-migration/id1023464725)

This science research tool allows users to track monarch butterfly migration patterns. Record location, flight direction, and body orientation for upload to a cloud server. Supports two distinct research projects focused on offshore platforms and butterfly navigation.

**Highlights:** Track monarch butterfly migration, Record location and flight data, Utilize device compass for direction, Upload data to cloud server, Support for Marine Monarchs project, Support for Migration Compasses project

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

**In-app purchases:** none


### MonarchPatch

[App page](https://appshunter.io/ios/app/monarchpatch/id6757447255)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Supporter Monthly | $0.99 | per month |
| Partner Monthly | $9.99 | per month |
| Supporter Yearly | $9.99 | per year |
| Partner Yearly | $99.99 | per year |


## Frequently asked questions

### Is Monarch Migration free?

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

### Is MonarchPatch free?

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

### Do Monarch Migration or MonarchPatch have ads?

MonarchPatch shows ads; Monarch Migration does not.

### Which is updated more often, Monarch Migration or MonarchPatch?

Monarch Migration ships an update every 2 months, and MonarchPatch every 8 months. Most recently, Monarch Migration was updated on October 2, 2026 and MonarchPatch on October 1, 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.*