Nature Guide vs Cairn Koans
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Nature Guide
Instantly identify plants, animals, and insects with AI by snapping a photo. Diagnose plant diseases and get care tips. Explore nearby nature spots and learn fascinating facts daily.
- AI-powered identification
- Plant disease diagnosis
- Nearby nature exploration
- AI nature expert chat
- Daily nature facts
- Multi-photo identification
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Your AI-Powered Nature Companion Discover wildlife, diagnose plant problems, and explore nature like never before - all in one app! INSTANT IDENTIFICATION Snap a photo of any plant, animal, bird, insect, or mushroom and get accurate results in seconds. Our unique multi-photo technology lets you capture different angles for even better accuracy! PLANT DOCTOR Is your plant sick? Our AI diagnoses diseases, pests, and nutrient deficiencies - then tells you exactly how to fix it. Save your garden before it's too late! EXPLORE NEARBY Find hiking trails, parks, and nature spots around you. Discover local wildlife and plants before your next adventure! ASK YOUR AI GUIDE Chat with our AI expert about any species. Learn about habitats, behaviors, toxicity, care tips, and more - it's like having a naturalist in your pocket. DAILY NATURE FACTS Get smarter every day with fascinating wildlife trivia and plant facts delivered straight to you! Perfect for hikers, gardeners, photographers, students, and anyone curious about nature. Download now and unlock the natural world! Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Cairn Koans
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A SillyDroose app. Small tools for gentle moments.
Screenshots
Verdict
The clearest difference is ads: Cairn Koans at none against Nature Guide's shown. Nature Guide's advantage is update cadence (weekly vs every 2 months) and iOS requirement (15.0 vs 17.0). On price, 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. Nature Guide sells 1 in-app purchase, starting at $1.99 per month and Cairn Koans sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Nature Guide ships an update weekly, Cairn Koans every 2 months. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.
| Parameter | Nature Guide | Cairn Koans |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Weekly — better | Every 2 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 86 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | Relax Software, LLC | Drew Douglass |
In-app purchases
Nature Guide
- Full Access$1.991 Month
Cairn Koans
- A Pebble$1.99
- A Stone$4.99
- A Standing Stone$9.99
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- A Cornerstone$19.99
