# Redmap vs AMDI Data Collection

The clearest difference is review sentiment: Redmap at 100% against AMDI Data Collection's 0%. Redmap also leads on update cadence (fortnightly vs every 5 weeks) and iOS requirement (10.0 vs 15.5). 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.

Redmap ships an update fortnightly, AMDI Data Collection every 5 weeks. The most recent releases landed on September 28, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Redmap | AMDI Data Collection |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/redmap/id720634088/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 5 weeks |
| Monetization | Free | Free |
| Size | 30 MB | 87 MB |
| Requires iOS | **10.0** | 15.5 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Condense Pty Ltd](https://appshunter.io/developer/1385358480) | [TANGAROA BLUE FOUNDATION LTD](https://appshunter.io/developer/1408112210) |

## What reviewers say

### Redmap

[App page](https://appshunter.io/ios/app/redmap/id720634088)

Contribute to marine science by logging sightings of uncommon marine species in Australian waters. Expert scientists verify your observations, helping to map species distribution shifts in response to environmental changes. Explore species information and build your personal sighting map.

**Highlights:** Log uncommon marine species sightings, Expert scientific verification, Map species distribution changes, View species information and photos, Build personal sighting catalogue, Citizen science contribution

**In-app purchases:** none


### AMDI Data Collection

[App page](https://appshunter.io/ios/app/amdi-data-collection/id1408112211)

This application allows citizen scientists and organizations to record and submit data on marine debris found during clean-up events. It uses a standardized methodology to contribute to a national database, providing insights into the types and amounts of litter impacting Australian coastlines.

**Highlights:** Data collection for marine debris, Standardized methodology, National database contribution, Analysis of debris types and amounts, Supports clean-up event organizers

**In-app purchases:** none


## Frequently asked questions

### Is Redmap free?

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

### Is AMDI Data Collection free?

AMDI Data Collection is free to download, with no in-app purchases.

### Do Redmap or AMDI Data Collection have ads?

Neither Redmap nor AMDI Data Collection shows ads.

### Which is updated more often, Redmap or AMDI Data Collection?

Redmap ships an update fortnightly, and AMDI Data Collection every 5 weeks. Most recently, Redmap was updated on September 28, 2026 and AMDI Data Collection on October 14, 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.*