# Project Monarch Science vs Neuroscape ORCA

The clearest difference is rating: Project Monarch Science at 4.0 against Neuroscape ORCA's 2.7. Project Monarch Science also leads on update cadence (every 10 days vs every 5 weeks) and ratings volume (28 vs 3). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Project Monarch Science holds the better App Store score, 4.0 against 2.7. That said, the two scores are not equally well evidenced: Project Monarch Science has 28 ratings behind it against 3, so its average is the more settled of the two.

Project Monarch Science ships an update every 10 days, Neuroscape ORCA every 5 weeks. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Project Monarch Science | Neuroscape ORCA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (28 ratings)](https://appshunter.io/ios/app/project-monarch-science/id6460006970/reviews)** | [2.7 (3 ratings)](https://appshunter.io/ios/app/neuroscape-orca/id6746117978/reviews) |
| Number of ratings | **28** | 3 |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 5 weeks |
| Monetization | Free | Free |
| Size | 83 MB | 138 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Cellular Tracking Technologies](https://appshunter.io/developer/1588087267) | [NEUROSCAPE ALLIANCE](https://appshunter.io/developer/1459562932) |

## What reviewers say

### Project Monarch Science

[App page](https://appshunter.io/ios/app/project-monarch-science/id6460006970)

This app transforms your smartphone into a receiver for tiny tracking devices attached to monarch butterflies. By crowdsourcing data, it helps scientists monitor butterfly migration patterns in unprecedented detail, aiding conservation efforts.

**Highlights:** Crowdsourced tracking network, Monarch butterfly migration monitoring, Detailed movement data, Habitat conservation insights, Utilizes Bluetooth frequency, Citizen science participation

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

**In-app purchases:** none


### Neuroscape ORCA

[App page](https://appshunter.io/ios/app/neuroscape-orca/id6746117978)

This app helps users characterize their digital presence and understand their online footprint. It provides insights into how personal data is represented and managed across various digital platforms. Gain a clearer picture of your digital identity and its implications.

**Highlights:** Digital presence characterization, Online footprint insights, Data representation analysis, Digital identity management, Platform data understanding

**In-app purchases:** none


## Frequently asked questions

### Is Project Monarch Science free?

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

### Is Neuroscape ORCA free?

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

### Which has better reviews, Project Monarch Science or Neuroscape ORCA?

Project Monarch Science is rated higher. Project Monarch Science averages 4.0 out of 5 from 28 ratings, while Neuroscape ORCA averages 2.7 from 3 ratings.

### Do Project Monarch Science or Neuroscape ORCA have ads?

Neither Project Monarch Science nor Neuroscape ORCA shows ads.

### Which is updated more often, Project Monarch Science or Neuroscape ORCA?

Project Monarch Science ships an update every 10 days, and Neuroscape ORCA every 5 weeks. Most recently, Project Monarch Science was updated on October 27, 2026 and Neuroscape ORCA 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.*