# Shark Tooth Finder: Fossil ID — Beachcombing AI & Tide Charts

> Beachcombing AI & Tide Charts (iPhone/iPad app by HIROTO KANZAWA.)

- Source: https://appshunter.io/ios/app/shark-tooth-finder-fossil-id/id6748310061 (this page in markdown: same URL + `.md`)
- Developer: [HIROTO KANZAWA](https://appshunter.io/developer/1825123586)
- Category: Education, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 83 MB
- Languages: American English, French (France), German (Germany), Italian, Japanese, Korean, Brazilian Portuguese, Chinese (Simplified, China), European Spanish, Chinese (Traditional, Taiwan)
- Released: 2025-08-11
- Data updated: 2026-08-30
- User reviews in markdown: https://appshunter.io/ios/app/shark-tooth-finder-fossil-id/id6748310061/reviews.md

## What is Shark Tooth Finder?

Point your camera at the sand — AI spots shark teeth in real time, right on the beach.
Know when to go: NOAA-quality tide times and a daily Shark Index that grades every low tide.
From Venice Beach, FL to Calvert Cliffs, MD — hunt smarter and find more fossils.

WHY SHARK TOOTH HUNTERS USE THIS APP

• AI CAMERA — Live detection highlights shark teeth in the shell hash as you scan. Or snap a photo of any find (even an old one) and get an instant fossil ID.

• SHARK INDEX — One score for "is today worth the drive?" It combines the year's top negative tides, post-storm sand movement, and time-of-day grades into a simple rating.

• TIDE & LOW-TIDE TIMES — NOAA-quality tide predictions with exact low-tide windows, so you arrive when the most beach is exposed.

• COLLECTION LOG — Measure each tooth with your camera, pin the exact spot on your map, and watch your stats grow: species, sizes, best beaches, best days.

• WORKS AT THE FAMOUS SPOTS — Venice Beach and Caspersen Beach in Florida, Calvert Cliffs in Maryland, Myrtle Beach and Folly Beach in South Carolina, Topsail in North Carolina — and thousands of other beaches worldwide.

• 10 LANGUAGES — Fully localized, with tide data for the U.S. (NOAA) and Japan (JMA) at meteorological-agency quality.

FREE TO START
Scan the beach, check today's tide, and log your finds for free. Upgrade to Premium for the weekly pinpoint forecast: which day, which beach, which hour — planned for you.

Whether you're planning a trip to the Shark Tooth Capital of the World or beachcombing your local shore after a storm, Shark Tooth Finder turns "maybe I'll get lucky" into a plan.

Download now — the next big low tide is already on your calendar.

■ Subscription
• Plan: Shark Tooth Finder Premium
• Options: Monthly / Yearly (auto-renewable)
• Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless canceled at least 24 hours before the end of the current period.
• Manage/Cancel: Settings > Apple ID > Subscriptions
• Restore: "Restore Purchases" in Settings

* Detection results vary by device, lighting, and sand conditions.

■ Links
• Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
• Privacy Policy: https://kinpatusan.github.io/SharkTeethFinder/en/privacy.html

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Premium Monthly | $2.99 | per month |
| Premium Yearly | $24.99 | per year |



## Version history (last 5 releases)

### 2.2.0 — 2026-08-20

• U.S. TIDE STATIONS — Added 12 NOAA stations covering the famous hunting grounds: Venice Beach and Caspersen (FL), Calvert Cliffs (MD), Myrtle Beach and Folly Beach (SC), Wrightsville Beach (NC), Amelia Island, St. Augustine, Galveston and more.

• SMARTER SHARK INDEX — Every low tide is now graded hour by hour, ranked against the whole year's tides ("today is in the year's top 5%"), and boosted when a storm has just moved the sand.

• SEE WHY — Each day's rating now shows the numbers behind it: tide, timing, weather, wind and season, plus what helped and what held the day back.

• SHARE YOUR FINDS — Create a discovery card for any tooth in your collection and share it with one tap.

• Improved tide accuracy at every station worldwide, plus many stability and localization fixes.

### 2.1.1 — 2026-03-27

Favorite Location Bug Fix

BUG FIXES:
• Fixed issue where favorite location displayed tidal station name instead of user-selected address
• Improved address display to show street-level detail for favorite locations

### 2.1.0 — 2026-03-26

Detection & Tide Improvements

• Reduced false positives: Improved AI model accuracy to minimize detection of shells and debris
• Enhanced tide calculations: Refined harmonic analysis for more accurate tide predictions worldwide
• Fixed issue where 0% confidence boxes appeared on photos with no detections
• Performance optimizations for smoother real-time detection

### 2.0.0 — 2026-03-13

Major Update - Completely Redesigned!

■ New Features
• AI real-time detection completely rebuilt
• Collection management: Save discoveries with photos, videos & GPS
• Map view: See all your find locations at a glance
• Tide & hunting conditions: Check optimal times to hunt
• Favorite locations: Register up to 3 beaches (Premium)
• Weekly forecast: Plan your hunting trips ahead
• Statistics & CSV export

■ Detection Improvements
• Basic: Close-range detection up to 30cm
• Premium: Wide-range detection up to 1.2m
• Vibration & sound alerts on detection

■ Premium Options
• Watch ads: 10-min Premium access (2x/day)
• Subscribe: Unlimited Premium + 3 favorite locations

■ Other
• Redesigned UI with deep-sea theme
• 10 languages supported
• Various bug fixes and performance improvements

### 1.0.2 — 2025-09-03

Added a disclosure modal explaining the 10-minute unlock when watching a video ad.

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## More apps by HIROTO KANZAWA

- [Treasure Map Japan: Rockhound](https://appshunter.io/ios/app/treasure-map-japan-rockhound/id6796719484)

All apps by HIROTO KANZAWA: https://appshunter.io/developer/1825123586

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-30.*