Thread Chart vs Rock Identifier | Stone ID
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Thread Chart
This app provides machinists with quick access to screw thread tolerances for various ISO and UN threads, including exotic sizes. It supports internal and external threads and calculates tap holes, eliminating the need for tolerance tables.
- ISO and UN thread tolerance processing
- Support for exotic thread sizes
- Internal and external thread calculations
- Tap hole calculation
- Eliminates need for tolerance tables
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App for machinists who need screw thread tolerances. Any ISO or UN thread can processed. Even such exotics as M12.3x1.34. Internal and external threads supported. Also calculation of tap holes provided. You do not need tolerance tables and wasting time for searching anymore. All you need is in your phone Note: Due to rounding rules there may be some miscalculations (one or two microns). If precision is critical you should use appropriate standard.
Rock Identifier | Stone ID
Identify rocks, minerals, crystals, and fossils instantly with a photo. Get scientific data, market value estimates, and track your collection. Explore the earth's secrets with this geological lab in your pocket.
- Instant photo identification
- Real-time value estimator
- Comprehensive geological data
- Interactive crystal guide
- Personal collection tracker
- Similar specimen finder
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Turn your smartphone into a powerful geological lab with Stone ID. Instantly identify rocks, minerals, crystals, gemstones, and fossils from a single photo and uncover their hidden stories and values. Whether you are an active rockhound, a passionate crystal collector, a jewelry enthusiast, or a curious hiker, our advanced AI analyzes color, texture, and crystal structures to deliver accurate scientific data in seconds. Key Features: • Instant Photo Identification: Snap a picture to identify any stone, crystal, or mineral instantly. • Real-Time Value Estimator: Get market value estimates for precious gemstones and collector minerals. • Comprehensive Geological Data: Learn about mineral composition, hardness scale, origin, and rarity. • Interactive Crystal Guide: Explore physical properties, geological history, and chemical formulas. • Personal Collection Tracker: Save your discoveries and build your own digital treasure chest. • Similar Specimen Finder: Compare your finds with visually similar rocks and ores. Designed for collectors, prospectors, and geology students alike, Stone ID makes exploring the earth educational and exciting. Start identifying today! Download Stone ID now and uncover the secrets of the stones beneath your feet. Free vs Premium • Free: 1 analysis, limited pricing details. • Premium (Unlimited): • Weekly: $4.99 • Annual: $39.99 • Lifetime: $79.99 (Prices may vary by region. Subscriptions auto-renew; manage or cancel anytime in your iOS Settings.) Links • Terms of Use: https://vexlab.app/p/stoneid/terms • Privacy Policy: https://vexlab.app/p/stoneid/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: Thread Chart at none against Rock Identifier | Stone ID's 3. Thread Chart also leads on iOS requirement (8.0 vs 15.0). Rock Identifier | Stone ID's advantage is device support. On price 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. Rock Identifier | Stone ID sells 3 in-app purchases, starting at $4.99 per 7 days. Thread Chart asks for nothing beyond the download.
| Parameter | Thread Chart | Rock Identifier | Stone ID |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) — better | — |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 2 — better | — |
| Ads | — | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | — | iPhone, iPod — better |
| Requires iOS | 8.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 16 MB | 61 MB |
| Age rating | 4+ | 4+ |
| Developer | Igor Pivnyk | DIDEM URAS |
In-app purchases
Thread Chart
No in-app purchases
Rock Identifier | Stone ID
- Weekly Plan3 Days trial$4.997 Days
- Yearly Plan3 Days trial$39.991 Year
- Lifetime Plan$79.99
