# Elitter vs iMammalia

The clearest difference is review sentiment: Elitter at 100% against iMammalia's 0%. iMammalia's advantage is update cadence (every 3 weeks vs every 3 months). 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.

Elitter ships an update every 3 months, iMammalia every 3 weeks. The most recent releases landed on October 22, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Elitter | iMammalia |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/imammalia/id1480199644/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 37 MB | 51 MB |
| Requires iOS | 15.1 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ASOC VERTIDOS CERO PARA LA PREVENCION MINIMIZACION Y ELIMINACION DE LOS VERTIDOS](https://appshunter.io/developer/1570610442) | [Centre for Ecology and Hydrology](https://appshunter.io/developer/986306797) |

## What reviewers say

### Elitter

[App page](https://appshunter.io/ios/app/elitter/id1377596169)

This citizen science tool allows users to report and categorize abandoned waste in terrestrial environments. The collected data helps define waste origins and pathways, enabling prioritized disposal actions for a cleaner planet and reduced ocean pollution.

**Highlights:** Report abandoned waste, Categorize waste types, Track waste origins, Visualize waste data, Contribute to environmental cleanup

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

**In-app purchases:** none


### iMammalia

[App page](https://appshunter.io/ios/app/imammalia/id1480199644)

Record wild mammal sightings across Europe with this app. Submit your observations, with or without photos, for expert verification and contribute to mammal distribution mapping. All records can be managed and updated online.

**Highlights:** Record mammal sightings, Photo uploads optional, Expert verification of records, Contribute to distribution mapping, Online record management, Supports European countries

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

**In-app purchases:** none


## Frequently asked questions

### Is Elitter free?

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

### Is iMammalia free?

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

### Do Elitter or iMammalia have ads?

Neither Elitter nor iMammalia shows ads.

### Which is updated more often, Elitter or iMammalia?

Elitter ships an update every 3 months, and iMammalia every 3 weeks. Most recently, Elitter was updated on October 22, 2026 and iMammalia on October 25, 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.*