Calflora Observer Pro vs TrashBlitz
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calflora Observer Pro
Record observations of wild plants in California with photos, GPS, and notes. Upload your findings to the Calflora.org website to contribute to botanical data. Essential tips are available within the app.
- Record wild plant observations
- Include photos and GPS coordinates
- Add notes and other information
- Upload data to Calflora.org
- Access essential tips within the app
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Use Calflora Observer Pro to record observations of wild plants in California using your phone or tablet and then upload them to the Calflora.org website. Observations can include photos, GPS coordinates, notes, and other information. Be sure to touch the Calflora logo on any screen for essential tips on getting started. Visit http://calflora.org/phone/pro for more detailed information. We're eager to hear about any issues or other comments you have, by sending them to phone@calflora.org.
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: Calflora Observer Pro at 5.0 against TrashBlitz's 4.4. Calflora Observer Pro also leads on review sentiment (100% vs 71%). On price, ratings volume, update cadence and ads 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.
Calflora Observer Pro holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 7 and 12 respectively. Written reviews point the same way: 100% of Calflora Observer Pro's written reviews are positive against 71% of TrashBlitz's.
Calflora Observer Pro ships an update every 3 months, TrashBlitz every 2 months. The most recent releases landed on September 25, 2026 and September 15, 2026 respectively.
| Parameter | Calflora Observer Pro | TrashBlitz |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (7 ratings) — better | 4.4 (12 ratings) |
| Positive reviews | 100.0% of reviews — better | 71.4% of reviews |
| Number of ratings | 7 | 12 — better |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 6 MB | 38 MB |
| Age rating | 4+ | 12+ |
| Developer | Calflora Database | The 5 Gyres Institute |
Customer experience
Calflora Observer Pro
TrashBlitz
In-app purchases
Calflora Observer Pro
No in-app purchases
TrashBlitz
No in-app purchases
Questions
Is Calflora Observer Pro free?
Is TrashBlitz free?
Which has better reviews, Calflora Observer Pro or TrashBlitz?
Do Calflora Observer Pro or TrashBlitz have ads?
Which is updated more often, Calflora Observer Pro or TrashBlitz?
Other comparisons
