Comparison

Redmap vs AMDI Data Collection

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Redmap

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
Read full description

Redmap (Range Extension Database and Mapping project) is a citizen science research project that invites Australians to share (or “log”) sightings of marine species observed that are ‘uncommon’ to their local seas. The species identification of these sightings is verified by a panel of Australian expert marine scientists. Over time, Redmap will use this ‘citizen science’ data to map which Australian marine species may be shifting where they live in response to changes in the marine environment, such as ocean warming/climate change. The Institute for Marine and Antarctic Studies (IMAS) at the University of Tasmania has partnered with research institutes across the country to help monitor species distributions in the marine environment. Citizen scientists – fishers, divers, boaters and beachcombers-can contribute their knowledge of the seas to help monitor Australia’s vast coastline. The citizen science data collected highlights regions and species that may be experiencing important distribution changes, so that research can be focused into these areas. Inspiring Australia and NSW Government Environmental Education Trust Fund provided funding (with support from IMAS and the University of Newcastle) for the development and production of a beautiful and easy-to-use tool allowing photo sightings of unusual marine sightings for any particular area to be submitted to Redmap. The app also contains information on Redmap species that are highlighted in each coastal region as those that are important to look out for. The species information provided includes pictures and basic biology as well as distribution maps. The app also allows individuals to build their own map and catalogue of submitted sightings (sightings will appear on the public website after verification by our science team). Download and start to spot, log and map today! For more information or to provide feedback on this app, please see the Redmap website www.redmap.org.au Available for iPhone and iPod touch, iOS version 6.1 or higher.

About

AMDI Data Collection

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
Read full description

The Australian Marine Debris Initiative® Database enables citizen scientists and organisations who are running clean-up events to collect data on what they are finding with a consistent methodology so it can be collated into a standardised national database on marine debris and litter. The AMDI® Database provides a comprehensive overview of what amounts and types of debris are impacting coastlines and estuaries around the country, and is the most comprehensive marine debris database in the southern hemisphere.

Screenshots

Redmap4 screens
AMDI Data Collection4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

Redmap ships an update fortnightly, AMDI Data Collection every 5 weeks. The most recent releases landed on September 28, 2026 and September 29, 2026 respectively.

Scorecard3 real differences · 7 level
Redmap versus AMDI Data Collection: the parameters behind the verdict, then further details
ParameterRedmapAMDI Data Collection
PriceFreeFree
Rating4.0 (1 ratings) — better—
Positive reviews100.0% of reviews — better0.0% of reviews
Number of ratings1 — better—
Update frequencyFortnightly — betterEvery 5 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS10.0 — better15.5
Further details — not scored
Size30 MB87 MB
Age rating4+12+
DeveloperCondense Pty LtdTANGAROA BLUE FOUNDATION LTD

Customer experience

Redmap

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

AMDI Data Collection

Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

In-app purchases

None

Redmap

No in-app purchases

None

AMDI Data Collection

No in-app purchases

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 September 29, 2026.

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