Folium
Folium: Photo-based plant identification with diagnosis, care guidance, and toxicity alerts. Ranked #42 of 49 in Visual Identification Apps by our editors (4.8/10); pricing: Free plan · 3-day trial; best for iPhone users identifying plants and diagnosing issues.
At a glance
- Editor score4.8 / 10
- PricingFree plan · 3-day trial
- Best foriPhone users identifying plants and diagnosing issues
- Free planYes
- Identification scopePlants
- Facts checked3 Oct 2026
Where it wins
- Results include scientific names, confidence scores, taxonomy, and reference images
- Photo diagnosis includes treatment steps, with care guidance across key growing conditions
- Pet and child toxicity alerts plus a collection for saved identifications
Where it doesn't
- Available on iOS only
- Free access is limited to three scans per day
- Health diagnosis and full care guides are part of paid subscriptions
Our verdict on Folium
Folium is a mobile app for identifying plants from photos and getting ongoing care and health guidance. It is aimed at iPhone users who want more than a species name: results include scientific names, confidence scores, taxonomy, and reference images, while photo-based health diagnosis offers treatment steps. Care guidance covers watering, sunlight, temperature, humidity, and soil. Pet and child toxicity alerts make it relevant to people checking plants around family or pets, and a personal collection stores identified plants.
The free plan is described as allowing three scans per day. The App Store listing also offers a three-day free trial, while paid subscriptions provide unlimited plant identification, full care guides, and health diagnosis. Folium Premium Weekly and Folium Premium Annual share those listed benefits; the published starting price is 2.99, and the listing uses euro-denominated weekly and annual prices, with dollar labels also shown in the US storefront. The weekly amount is a weekly renewal price, not a monthly plan price, and prices may vary by storefront.
Folium keeps its scope focused on plants and is designed for mobile use on iOS, so it is not a fit for Android users or anyone seeking identification across other visual categories. Its combination of identification details, diagnosis, treatment guidance, and toxicity alerts makes it a better match for people who want a recurring plant reference than for someone needing only occasional name lookups. Choose it if photo identification and follow-up care are both useful; consider an alternative if cross-platform access matters or three daily free scans are not enough.
Folium pricing
All 2 Folium plans and prices →
Folium fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Not verified |
| Identification scope | Plants |
| Offline identification | Not verified |
| Photo health diagnosis | Yes |
| Mobile platforms | Ios |
| Saved identifications | Yes |
| Community features | Not verified |
| Free trial | 3 days |
| Deployment | Mobile |
| Platforms | iOS |
| Built for | Solo (editorial estimate) |
| Pricing | Free plan · 3-day trial (source) |
| Website | getfolium.app |
| Facts checked | 3 Oct 2026 |
Alternatives to Folium
- Pl@ntNetPhoto-based plant identification with offline mobile models and community review.9.4
- Seek by iNaturalistA free mobile app for offline, camera-based identification of plants, animals, and fungi.9.3
- Merlin Bird IDA free mobile app for identifying birds by image, sound, or guided observations.9.2
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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