Fungi Bookletv4.0.0

What changed

• New featureOn-device photograph identification for fungi species with similarity scores.
• New featureOffline Taiwan topographic map with place-name search and coordinate entry.
• New featureTrail recording with background tracking, GPX/KML support, and elevation profiles.
• New featureBacktracking and off-route vibration alerts with arrival time estimation.
• New featureAutomatic summit recording for Taiwan's Top 100 peaks.
• New featureTrail-snapping measurement tool for distance and ascent/descent calculations.
• ContentGranular rainfall forecasts and cumulative scale improvements.
• ComplianceCloud sync now requires sign-in; anonymous account data has been deleted.
• SocialSharing functionality for species, spots, and trip cards via deep links.
• UXLayout corrections for large text sizes and addition of a user guide link.

Original release notes

4.0.0 is the first update since 3.2.0 (April 2026). It adds four major features and changes the default behavior of cloud sync.

■ Identification from a photograph (new)

Photographs taken with the camera or chosen from the library are classified on the device, with a similarity score at each rank from phylum down to species. Photographs are never uploaded and no connection is needed; the model is downloaded once on first use (about 140 MB). Where confidence extends only to genus, the result stops at genus rather than proposing a species name. Results are kept on the device and can be compared, shared as a card, or deleted.

■ Offline Rudy Map (new)

Downloaded once, the Taiwan topographic map — contours, hillshading and place-name index — works with no connection, with a new release each Thursday. A full edition (386 MB) and a light edition (194 MB) are both kept and can be switched between; smaller areas may be downloaded at high zoom. Also added: offline place-name search, coordinate entry (decimal degrees, degrees-minutes-seconds, TWD97 two-degree zone), a compass reading bearing and elevation, and three map styles.

■ Trail recording (new)

Recording starts with a single press and continues in the background, with progress shown on the Lock Screen throughout. GPX, KML and KMZ are supported for import and export; waypoints may be marked and photographed along the way, and an elevation profile and trip card follow on completion. A footprint layer records the trails you have walked and accumulates distance against Taiwan's trail network.

■ Backtracking and off-route alerts (new)

The route walked in is fixed as a reference line; straying about 50 m from it vibrates, and the app reports your distance from the line, the distance remaining to the trailhead, and — from your pace on the day — an estimated arrival time set against sunset. A separate alert appears when you are more than about 60 m from any known trail. Both work entirely offline.

There is no voice guidance, no turn-by-turn direction, and no shortcut will ever be proposed.

■ Summit records (new)

Named summits you walk over are recorded automatically, with no check-in required; Taiwan's Top 100 and Small Top 100 carry a badge. Nothing is pushed at you and no count of remaining summits is shown.

■ Measurement along the trail (new)

Two points placed on the map snap to the nearest trail; distanc…