ScrewFinderAI vs Write on PDF
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ScrewFinderAI
Instantly identify screws, bolts, nuts, and washers using AI-powered image recognition. Get exact sizing, thread type, material, and compatible part numbers in seconds. Find where to buy replacements with detailed specifications.
- AI fastener scanning
- Full specification breakdown
- "Where to Buy" guidance
- Scan history log
- Instant identification
- Detailed output
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Fastener Specs. Zero Work. Stop guessing. Start scanning. ScrewFinderAI is a 100% free AI-powered fastener identification app that instantly recognizes screws, bolts, nuts, washers, and specialty fasteners using advanced image recognition technology. Whether you're on a job site, in a workshop, or at home, ScrewFinderAI gives you accurate specs in seconds. No manuals, no measuring guesswork, no paywalls. Instant Fastener Identification Simply scan your fastener and receive: • Exact sizing • Thread type • Head style • Material & plating • Compatible part numbers • Where to buy replacements Fast. Accurate. Professional. Built for the Real World Designed for: • HVAC Professionals • Plumbers • Electricians • Construction Workers • Carpenters & Woodworkers • Automotive Mechanics • Professional Installers • Military Personnel • DIYers & Homeowners If you work with hardware, this app was built for you. Why ScrewFinderAI? Unlike other fastener apps: • 100% FREE = no subscriptions, no locked features, no hidden paywalls • Professional-grade accuracy • Clean, modern interface • Faster recognition • More detailed output • Broader industry support This isn’t a basic hardware lookup tool; it’s a professional fastener assistant powered by modern AI. Current Features • AI fastener scanning • Full specification breakdown • “Where to Buy” guidance • Scan history log • Clean, simple design Built for Speed. Built for Accuracy. Built Free. ScrewFinderAI transforms a universal problem into an instant solution. Download now and experience fastener identification the smarter way.
Write on PDF
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# Write on PDF Write, type, draw, highlight, sign, and add notes directly to your PDF documents. Write on PDF gives you the tools you need to quickly mark up PDFs without complicated editing software. Open your document, make your changes, and save your updated PDF. ## WRITE & ADD TEXT Add text anywhere on your PDF. Perfect for filling documents, adding answers, making corrections, or adding extra information. ## DRAW & ANNOTATE Use drawing and annotation tools to mark up documents naturally. Circle important information, add handwritten notes, or draw directly on the page. ## FILL PDF FORMS Complete PDF documents and forms from your iPhone or iPad. Add the information you need without printing the document first. ## SIGN DOCUMENTS Add your signature directly to PDF documents for a fast and convenient way to complete forms and paperwork. ## HIGHLIGHT IMPORTANT TEXT Highlight important sections of your documents so you can quickly find the information that matters. ## ADD NOTES Add notes and annotations while reading, reviewing, or studying PDF documents. ## MADE FOR EVERYDAY PDF EDITING Write on PDF is useful for: * Filling PDF forms * Signing documents * Adding text to PDFs * Annotating documents * Highlighting important information * Writing notes * Drawing on PDFs * Reviewing documents * Completing worksheets * Marking up study materials Whether you're working with forms, notes, school documents, business files, or personal PDFs, Write on PDF makes it easy to make changes directly from your device. Open your PDF and start writing. Subscription Details: • Title: Savory All Access • Length: 1 year • Price: $39.99 per year and $7.99 per month (auto-renews) • Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ • Privacy Policy: https://docs.google.com/document/d/1b2FQZ_HK2I_6ZBJhiaJw_Vii5aKW9D4dYjGfP9C8efU/edit?usp=sharing
Screenshots
Verdict
The clearest difference is in-app purchases: ScrewFinderAI at none against Write on PDF's 3. ScrewFinderAI also leads on iOS requirement (15.0 vs 17.0). On price, ads and device support 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. Write on PDF sells 3 in-app purchases, starting at $4.99 per 7 days. ScrewFinderAI asks for nothing beyond the download.
| Parameter | ScrewFinderAI | Write on PDF |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 4 days | — |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 6 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Brandon Horton | Fenuku Kekeli |
In-app purchases
ScrewFinderAI
No in-app purchases
Write on PDF
- All Access for a week$4.997 Days
- All Access for a year$39.991 Year
- All Access$99.99









