CRSI Rebar Reference vs PDF Scanner
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CRSI Rebar Reference
Access essential data for reinforcing bars (rebar) including specifications, hook details, and marking requirements. This app serves as a quick reference for industry standards and links to online resources.
- ASTM standard reinforcing bar specifications
- Standard hook details (90, 135, 180 degrees)
- Stirrup/tie hook details
- ASTM reinforcing bar marking requirements
- Minimum yield and tensile requirements
- Links to CRSI online resources
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QUICK REFERENCE! This ready reference app from the Concrete Reinforcing Steel Institute is a handy desk and field resource and includes information on ASTM standard reinforcing bars (rebar), standard hook details, standard stirrup/tie hook details, and ASTM reinforcing bar marking requirements. The app provides standard rebar specifications including sizes, diameters, areas and weights along with 90-, 135- and 180-degree hook details. Minimum yield and minimum tensile requirements per ASTM are also included. Industry standard bar markings for inch-pound rebar is illustrated for grades 40, 50, 60, 75, 80, 100 (A615), 100 (A1035), and 120. Links to the CRSI’s online resources are included.
PDF Scanner
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【PDF Scanner】 helps you turn paper documents, photos, and existing files into organized PDFs. Scan, edit, annotate, sign, and protect documents from one convenient workspace. **Document Scanning** Capture paper pages with the camera or import images and local files. Combine multiple pages into a PDF that is ready to review, rename, organize, and share. **PDF Toolkit** Split, merge, compress, and normalize PDF files for different document workflows. Organize files with folders and move, rename, preview, or share them as needed. **OCR and Notes** Recognize text in scanned pages, review extracted content, and add line highlights with attached notes. Watermarks and annotations help you mark important information without changing the original source document. **Sign and Protect** Create, save, and reuse signatures across PDF pages. Add password protection to sensitive files and use Face ID for quicker access when biometric unlock is enabled. Keep everyday document work organized with scanning, PDF processing, text recognition, annotations, signatures, and file protection in one app. Download PDF Scanner and manage your documents wherever you go. Premium Account Pricing and Terms $ 9.99/week* $ 39.99/year* *The prices shown are in U.S. dollars. Actual charges may be converted to your local currency based on your country or region. Payment will be charged to your iTunes account at confirmation of purchase. The subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours before the end of the current period, and the renewal cost will be provided. Subscriptions may be managed by the user. Auto-renewal may be turned off by going to the user's account settings after purchase. Cancellation of the current subscription is not allowed during an active subscription period. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://dashingent.xyz/pdfwendangsaomiao/privacy.html
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Verdict
The clearest difference is device support: CRSI Rebar Reference at 3 against PDF Scanner's 1. On price, update cadence, ads and in-app purchases 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. CRSI Rebar Reference sells 3 one-off in-app purchases and PDF Scanner sells 2 in-app purchases, starting at $9.99 per 7 days. Whichever you choose, the download price is not the number that matters.
CRSI Rebar Reference ships an update every 5 weeks, PDF Scanner every 2 months. The most recent releases landed on October 4, 2026 and October 17, 2026 respectively.
| Parameter | CRSI Rebar Reference | PDF Scanner |
|---|---|---|
| Price | Free | Free |
| Rating | 3.3 (16 ratings) — better | — |
| Positive reviews | 33.3% of reviews | — |
| Number of ratings | 16 — better | — |
| Update frequency | Every 5 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 16.0 |
| Further details — not scored | ||
| Size | 51 MB | 18 MB |
| Age rating | 17+ | 4+ |
| Developer | Concrete Reinforcing Steel Institute | DASHING ENTERPRISES LIMITED |
In-app purchases
CRSI Rebar Reference
- CRSI - Rebar Identifier Module$2.99
- CRSI Development Length ACI$4.99
- CRSI Development length AASHTO$4.99
PDF Scanner
- Weekly Nova3 Days trial$9.997 Days
- Yearly Nova$39.991 Year
Questions
Is CRSI Rebar Reference free?
Is PDF Scanner free?
Do CRSI Rebar Reference or PDF Scanner have ads?
Which is updated more often, CRSI Rebar Reference or PDF Scanner?
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