# Screw Identifier - Fastener ID — Identify Screws, Bolts & Nuts

> AI-powered app for instant identification and measurement of fasteners. (iPhone/iPad app by FANG FANG.)

- Source: https://appshunter.io/ios/app/screw-identifier-fastener-id/id6751171399 (this page in markdown: same URL + `.md`)
- Developer: [FANG FANG](https://appshunter.io/developer/1833796784)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Rating: 4.00/5 from 19 App Store ratings · 5 written reviews indexed
- Age rating: 4+
- Requires: iOS 16.4 · 94 MB
- Languages: American English, French (France), German (Germany), Chinese (Simplified, China), European Spanish
- Released: 2025-09-03
- Data updated: 2026-08-31
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/screw-identifier-fastener-id/id6751171399/reviews.md

## What is Screw Identifier?

Identify screws, bolts, and nuts instantly with Screw Identifier – your essential fastener identification app powered by advanced AI. Perfect for DIY enthusiasts, professional mechanics, contractors, and hardware hobbyists. Identify fasteners, measure dimensions, and access detailed specifications with just a photo.

Advanced AI-Powered Fastener Identification

With one tap, Screw Identifier uses cutting-edge AI to deliver detailed fastener analysis. From common wood screws and machine screws to specialized bolts, nuts, washers, and threaded fasteners, this app is your go-to solution for hardware identification and measurement.

Key Features:

- Screw identifier with AI-powered detection
- Bolt scanner with detailed measurements
- Nut detector with type, size, thread pitch identification
- Hardware identifier with real-time processing
- Multiple fastener analysis in one image
- Thread pitch and dimension readouts
- Metric and imperial unit support

Comprehensive Fastener Analysis

The app provides detailed information: estimated measurements (length, diameter, thread pitch, head size), fastener type classification (Phillips head, hex head, flat head, pan head, socket head), standard specifications (metric M3-M10, imperial #4-#12), material and finish identification, thread identification (UNC, UNF, metric thread), and compatible tools recommendations.

AI Chatbot Assistant

Get expert guidance from our built-in AI assistant for fastener types, specifications, tool selection, compatibility advice, and technical guidance. Learn about fastener standards (ANSI, ISO, DIN, JIS) and get replacement part recommendations.

Complete History & Reports

Save all your fastener identifications, access detailed reports, export measurements and specifications, and build your own fastener record.

Pro Plan Benefits:

- Unlimited fastener identifications (no daily limits)
- Multiple fastener analysis in one image
- Detailed report access and export options
- Advanced measurement tools
- No ads and priority AI processing
- Watermark control on shared results

Perfect for DIY projects, automotive repair, construction, electronics repair, furniture assembly, woodworking, and industrial maintenance.

Please note: results are AI-generated estimates. Verify critical dimensions with calipers or a thread gauge before buying or installing parts.

Subscription Details:

Payment will be charged to your iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renewal is turned off at least 24-hours before the end of the current period. Your account will be charged for renewal within 24-hours prior to the end of the current period at the rate of your selected plan. You can manage or cancel your subscription by going to your Account Settings after purchase.

End User License Agreement
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Terms of Use:
https://fangfang.me/docs/app-terms-of-use

Privacy Policy:
https://fangfang.me/docs/app-privacy-policy

## Key features

- AI-powered fastener identification
- Precise measurement with ruler reference
- Detailed specifications (type, size, material)
- AI chatbot for expert guidance
- Scan history and reports
- Intuitive interface

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Weekly Pro | $3.99 | per 7 days |
| Yearly Pro | $19.99 | per year |
| Weekly Pro | $2.99 | per 7 days |


## Recent user reviews (5 of 5)

All indexed reviews: https://appshunter.io/ios/app/screw-identifier-fastener-id/id6751171399/reviews.md

### 2/5 — Cute, but meh.

*2026-06-07, version 2.0.0*

It’s not really precise, and despite the text recommending more pictures, there’s no way to do that in the app. You have to just do several identifications and guess which ones are accurate. 

Maybe if they’d involved photogrammetry, but I can see that getting annoying. 

Just get a set of thread gauges and a micrometer. Those will be accurate and they won’t require a subscription.

### 1/5 — If I had all the information it needs, I wouldn’t need the app

*2026-05-14, version 2.0.0*

The app was unable to identify any useful information and it told me it needed things like pitch, length, diameter, etc., which is what I was trying to use the app to figure out. If I have all of those I don’t need the app

### 1/5 — Not useful

*2026-05-05, version 2.0.0*

It needed more than the two photos. I tried the free trial but it still didn’t give me much. It wanted a ruler and calipers to get an accurate reading. If I had my ruler and calipers on me I wouldn’t need the app.

### 1/5 — AI dependent

*2026-01-10, version 1.0.0*

It relies entirely on the idea that the gemini ai identifies whatever picture you take. So far it hasn’t been reliable at all, and since it charges you to use more than 3 guesses per day (including erroneous guesses) it is more reliable to just use google

### 2/5 — “Precise” Fastener Analysis

*2025-10-15, version 1.0.0*

“Length: 7.0mm” is very precise.

Too bad it wasn’t “Length: 3.5mm”, that which one may refer to as also “accurate”.

Guessing the subscription is for the Ai analysis bit? If the free version is to be taken as an indicator of worth, perhaps another might find this review suited to their needs, precisely and accurately, if not completely.

## Frequently asked questions about Screw Identifier

### How does Screw Identifier work?

Screw Identifier uses advanced AI to analyze a photo of a fastener. You'll need to include a ruler or coin for reference. The app then provides precise measurements, type classification, and specifications.

### What kind of fasteners can Screw Identifier identify?

The app can identify a wide range of fasteners including screws, bolts, and nuts. It can classify types like Phillips and hex, and determine specifications in both metric and imperial standards.

### Does Screw Identifier have ads?

Yes, the free version of Screw Identifier contains advertisements. Users can remove ads by subscribing to the Pro plan.

### What are the subscription options for Screw Identifier?

Screw Identifier offers a Pro plan with unlimited identifications, multiple fastener analysis, detailed reports, and no ads. Subscription options include weekly and yearly plans, with a free trial available for some weekly plans.

### Can I use Screw Identifier offline?

The description does not specify offline functionality. However, AI-powered identification typically requires an internet connection for processing.

### How often is Screw Identifier updated?

The app was last updated on February 9, 2026, indicating active development. Users can expect regular updates for new features and improvements.

### What devices is Screw Identifier compatible with?

Screw Identifier is available for iPhone and iPod devices. It is designed for iOS operating systems.

### Is Screw Identifier suitable for beginners?

Yes, Screw Identifier features a simple and intuitive interface designed for both beginners and professionals. The AI chatbot also provides expert guidance.

## Version history (last 4 releases)

### 3.0.0 — 2026-08-11

- Redesigned onboarding: choose your project and measurement units, learn the photo tips that get better results, and preview a sample report before your first scan
- Faster fastener identification - a scan now opens straight to your result, with a redesigned analysing screen
- Better screw drive recognition, including JIS, Torx and tamper-resistant heads
- Rebuilt history: search, filter by report type, mark favorites, and read your notes right on the card
- Free plan now shows your remaining daily scans and when they reset
- Fixed an issue that could stop single fastener scans from completing

### 2.0.0 — 2026-02-09

- Faster, cleaner identification flow so you get from photo to result with fewer taps.
- Clearer screw-drive visuals for quicker, more confident drive-type recognition.
- Smoother report experience with better structure and readability for key technical details.
- General reliability and polish improvements across onboarding, analysis, and report screens.

### 1.1.0 — 2026-01-12

- Add inch support
- UX improvements

### 1.0.0 — 2025-09-04

No release notes.

## Apps similar to Screw Identifier

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Screw Identifier - Bolt ID](https://appshunter.io/ios/app/screw-identifier-bolt-id/id6759244718) | 3.6 (20) | Free | Utilities |
| [Bolt Thread Identifier](https://appshunter.io/ios/app/bolt-thread-identifier/id6468966021) | 2.3 (3) | Free | Utilities |
| [Stud Finder WallScan:Wall Wood](https://appshunter.io/ios/app/stud-finder-wallscanwall-wood/id6745213508) | 4.0 (633) | Free | Utilities |
| [ScrewFinderAI](https://appshunter.io/ios/app/screwfinderai/id6759080731) | — | Free | Utilities |
| [Screw Pitch Gauge](https://appshunter.io/ios/app/screw-pitch-gauge/id6749295527) | — | Free | Utilities |
| [sqft AR](https://appshunter.io/ios/app/sqft-ar/id1385220107) | 4.4 (761) | Free | Utilities |

## More apps by FANG FANG

- [Meowing: Cat Translator AI](https://appshunter.io/ios/app/meowing-cat-translator-ai/id6752854774)
- [Season Color Analysis, ColorLo](https://appshunter.io/ios/app/season-color-analysis-colorlo/id6755318096)
- [Vinyl Id & Value Scanner](https://appshunter.io/ios/app/vinyl-id-and-value-scanner/id6756349376)
- [AI Roof Inspector: Pro Report](https://appshunter.io/ios/app/ai-roof-inspector-pro-report/id6756862603)
- [Iris Art: Eye Photo Editor](https://appshunter.io/ios/app/iris-art-eye-photo-editor/id6757343363)

All apps by FANG FANG: https://appshunter.io/developer/1833796784

## Related topics

[ant identifica](https://appshunter.io/ios/topics/ant-identifica) · [nut scan](https://appshunter.io/ios/topics/nut-scan)

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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 2026-08-31.*