Apps by Linh Phan Nhat Khanh
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Reference

Fern Species Guide

Linh Phan Nhat Khanh

Free download In-app purchases
Open on Apple

About this app

Your pocket field guide to 20 fern species — from delicate Maidenhair to towering Tree Fern. Explore, identify, and log every fern you encounter, entirely offline. — KEY FEATURES — • 20 species with full detail sheets — scientific name, leaf shape, habitat, climate, and frond size for every entry • Habitat browser groups species across five ecosystems: Temperate Forest, Tropical, Wetland, Alpine, and Fern Garden • Species search — find any fern instantly by common or scientific name • Personal spotting log — record the date, species, location, and notes each time you spot a fern in the wild • Sightings sorted by date so your most recent finds are always at the top • Works completely offline — no internet, no account, no ads, no tracking • All data stored privately on your device Fern Species Guide covers Boston Fern, Maidenhair, Sword, Bird's Nest, Staghorn, Lady, Cinnamon, Royal, Ostrich, Christmas, Holly, Painted, Rabbit's Foot, Wood, Sensitive, Hay-scented, Hart's Tongue, Asparagus, Bracken, and Tree Fern. Whether you hike temperate forests, explore wetlands, or tend a fern garden, this guide belongs in your field kit. — Fern Species Guide PREMIUM — A subscription unlocks the complete Fern Species Guide experience: all 20 species with full detail sheets, unlimited spotting log entries, the habitat browser, and instant search — 100% offline with no ads and no tracking. Subscription options: • Weekly — $9.99 / week • Yearly — $49.99 / year (includes a 3-day free trial) Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless turned off at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours prior to the end of the period. Manage or cancel anytime in your Apple Account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://pnkl26.web.app/privacy-policy

Latest release

What’s New

Version 1.1.0 Jun 10, 2026

Version 1.0 • Field guide with 20 fern species — scientific name, leaf shape, habitat, climate, and frond size • Habitat browser grouping species by Temperate Forest, Tropical, Wetland, Alpine, and Fern Garden • Full-text search across common and scientific names • Personal spotting log with date, species, location, and free-text notes • All data stored on-device — fully offline, no account required

Audience growth

Ratings growth

Steady
7-day gain +0
Ratings / day 0.0
30-day gain +0
US rating-count history
0 ratings
0 Aug 17, 2026 · 0 ratings Aug 17, 2026

Baseline captured. Growth appears after the crawler observes a changed rating count.

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

Price tracking

Price intelligence

1 captured event
Current Free
Historical low Free
Paid → free
Price history
Current Free
Free Aug 17, 2026 · Free Aug 17, 2026

First snapshot captured. The trend line starts after the next crawler price observation.

  1. First observed Aug 17, 2026 · 8:19 PM Free

Screenshots

Fern Species Guide iPhone screenshotFern Species Guide iPhone screenshotFern Species Guide iPhone screenshot