CRSI Rebar Reference vs Goutru Security
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.
Goutru Security
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Goutru, was created for community owners/residents to manage and create invitation for guests to facilitate entry to residences, businesses, and more. Our security app allows guards to provide residents the proper security and access they deserve, controlling who is entering the community and when. Goutru Security App has an incredible design. Solving a pain point improving current processes for residence entrance. The solution is secure, easy, reliable and has proven great outcomes for the visitors, security guards, residents and management.
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Verdict
The clearest difference is rating: Goutru Security at 5.0 against CRSI Rebar Reference's 3.3. Goutru Security also leads on in-app purchases (none vs 3) and update cadence (fortnightly vs every 5 weeks). CRSI Rebar Reference's advantage is ratings volume (16 vs 1). On price, ads, device support and iOS requirement 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. Goutru Security asks for nothing beyond the download.
Goutru Security holds the better App Store score, 5.0 against 3.3. That said, the two scores are not equally well evidenced: CRSI Rebar Reference has 16 ratings behind it against 1, so its average is the more settled of the two.
CRSI Rebar Reference ships an update every 5 weeks, Goutru Security fortnightly. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.
| Parameter | CRSI Rebar Reference | Goutru Security |
|---|---|---|
| Price | Free | Free |
| Rating | 3.3 (16 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 33.3% of reviews | — |
| Number of ratings | 16 — better | 1 |
| Update frequency | Every 5 weeks | Fortnightly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 — better | 15.5 |
| Further details — not scored | ||
| Size | 51 MB | 119 MB |
| Age rating | 17+ | 4+ |
| Developer | Concrete Reinforcing Steel Institute | GOUTRU LLC |
In-app purchases
CRSI Rebar Reference
- CRSI - Rebar Identifier Module$2.99
- CRSI Development Length ACI$4.99
- CRSI Development length AASHTO$4.99
Goutru Security
No in-app purchases
Questions
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Is Goutru Security free?
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