Calflora Observer Pro vs Mushroom Observer
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.
Mushroom Observer
Document fungi discoveries directly from your mobile device. Record detailed observations and contribute to a community-driven database of fungal life. Ideal for naturalists and researchers documenting specimens in the field.
- Record fungi observations
- Document field discoveries
- Contribute to a database
- Mobile specimen recording
- Fungal life documentation
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Record observations of fungi found in the field on the Mushroom Observer mobile app.
Screenshots
Verdict
The clearest difference is review sentiment: Calflora Observer Pro at 100% against Mushroom Observer's 0%. Mushroom Observer's advantage is update cadence (fortnightly vs every 3 months) and iOS requirement (13.4 vs 15.0). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Calflora Observer Pro ships an update every 3 months, Mushroom Observer fortnightly. The most recent releases landed on June 1, 2026 and August 27, 2026 respectively.
| Parameter | Calflora Observer Pro | Mushroom Observer |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (7 ratings) — better | — |
| Positive reviews | 100.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 7 — better | — |
| Update frequency | Every 3 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.4 — better |
| Further details — not scored | ||
| Size | 6 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Calflora Database | Mushroom Observer, Inc. |
Customer experience
Calflora Observer Pro
Mushroom Observer
In-app purchases
Calflora Observer Pro
No in-app purchases
Mushroom Observer
No in-app purchases
Questions
Is Calflora Observer Pro free?
Is Mushroom Observer free?
Do Calflora Observer Pro or Mushroom Observer have ads?
Which is updated more often, Calflora Observer Pro or Mushroom Observer?
Other comparisons
