OpenLitterMap vs TrashBlitz
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OpenLitterMap
Contribute to a global database of litter and plastic pollution by taking photos and tagging them. The interactive map visualizes pollution data, allowing users to create custom tags and see live updates. Participate in a worldwide competition to collect the most data.
- Interactive global litter map
- Photo tagging of pollution
- Customizable tag creation
- Live map updates
- Open source data
- Country-based data collection competition
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OpenLitterMap is an open source, interactive, and accessible database of the world's litter and plastic pollution. Just take a photo and tag it with our app. Litter is the first application of this real-time data collection platform. For the last 8+ years we have been crowdsourcing data to help train the OpenLitterAI to help with detection and classification. You can extend our pre-defined list of tags with your own custom tags. Just type in whatever you want and press enter. Keep the global map open to see live updates. If you click on a notification, you will be zoomed to the data that was just recorded. Copy the URL to get a link that can send anyone to any photo. Our code & data is open and accessible. Anyone can download our data for free, and use it for any purpose. This is necessary to bring transparency and democracy to science on pollution. As you tag litter, you help your country compete at the #LitterWorldCup to see who can collect the most data. By default, all users are anonymous. However, you can make your name or username appear on the map or leaderboards and compete for a position. You can also add your social media links which will appear on each upload. Like getting upvoted, the more data you upload means the more visibility you will get! Follow us on social media to keep up to date with all of the latest updates and developments.
TrashBlitz
This app allows users to log and track the trash they collect from various locations, including national parks, neighborhoods, and cities. It helps users contribute to environmental cleanup efforts by documenting their impact.
- Track trash pickup
- Log environmental cleanup efforts
- Document trash collection
- Support National Park cleanups
- Community cleanup tracking
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Trashblitz is the app to allow people to track the trash they pick up in National Parks or around their house, company, city, or town.
Screenshots
Verdict
The clearest difference is rating: TrashBlitz at 4.4 against OpenLitterMap's 3.6. TrashBlitz also leads on ads (none vs shown) and monetization model (free vs ad-supported). OpenLitterMap's advantage is update cadence (every 3 weeks vs every 2 months) and review sentiment (83% vs 71%). On price, ratings volume, in-app purchases and device support 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
TrashBlitz holds the better App Store score, 4.4 against 3.6. Both are backed by a comparable volume of ratings — 9 and 12 respectively. Written reviews complicate that: 83% of OpenLitterMap's written reviews are positive against 71% of TrashBlitz's, so the app with the better star average is not the one people write more warmly about.
OpenLitterMap ships an update every 3 weeks, TrashBlitz every 2 months. The most recent releases landed on June 20, 2026 and September 9, 2026 respectively.
| Parameter | OpenLitterMap | TrashBlitz |
|---|---|---|
| Price | Free | Free |
| Rating | 3.6 (9 ratings) | 4.4 (12 ratings) — better |
| Positive reviews | 83.3% of reviews — better | 71.4% of reviews |
| Number of ratings | 9 | 12 — better |
| Update frequency | Every 3 weeks — better | Every 2 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 47 MB | 38 MB |
| Age rating | 12+ | 12+ |
| Developer | Sean Lynch | The 5 Gyres Institute |
Customer experience
OpenLitterMap
TrashBlitz
In-app purchases
OpenLitterMap
No in-app purchases
TrashBlitz
No in-app purchases
