# CRSI Rebar Reference vs Aranchor Mobile

The clearest difference is rating: Aranchor Mobile at 5.0 against CRSI Rebar Reference's 3.3. Aranchor Mobile 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, monetization model and device support there is nothing between them.

Both are free to download. CRSI Rebar Reference sells 3 one-off in-app purchases. Aranchor Mobile asks for nothing beyond the download.

Aranchor Mobile 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, Aranchor Mobile fortnightly. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | CRSI Rebar Reference | Aranchor Mobile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.3 (16 ratings)](https://appshunter.io/ios/app/crsi-rebar-reference/id1423271565/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/aranchor-mobile/id6560105204/reviews)** |
| Number of ratings | **16** | 1 |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Fortnightly** |
| Monetization | Free | Free |
| Size | 51 MB | 17 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Concrete Reinforcing Steel Institute](https://appshunter.io/developer/1423271564) | [3K Building Services, Inc.](https://appshunter.io/developer/1575522323) |

## What reviewers say

### CRSI Rebar Reference

[App page](https://appshunter.io/ios/app/crsi-rebar-reference/id1423271565)

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.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CRSI - Rebar Identifier Module | $2.99 | one-time |
| CRSI Development Length ACI | $4.99 | one-time |
| CRSI Development length AASHTO | $4.99 | one-time |


### Aranchor Mobile

[App page](https://appshunter.io/ios/app/aranchor-mobile/id6560105204)

This app provides instant field access to project images and documentation via an intuitive VR interface. It supports various GIS formats and offers time-lapse visualization for progress tracking. Cloud storage and real-time collaboration are available, along with mobile AR solutions for on-the-go connectivity.

**Highlights:** GIS format import (GeoTIFF, Shapefile, GeoJSON, KML), VR interface for field access, Time-lapse project progress visualization, Cloud-based storage and collaboration, Mobile AR solutions

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is CRSI Rebar Reference free?

CRSI Rebar Reference is free to download, with in-app purchases available.

### Is Aranchor Mobile free?

Aranchor Mobile is free to download, with no in-app purchases.

### Which has better reviews, CRSI Rebar Reference or Aranchor Mobile?

Aranchor Mobile is rated higher. CRSI Rebar Reference averages 3.3 out of 5 from 16 ratings, while Aranchor Mobile averages 5.0 from 1 ratings.

### Do CRSI Rebar Reference or Aranchor Mobile have ads?

Neither CRSI Rebar Reference nor Aranchor Mobile shows ads.

### Which is updated more often, CRSI Rebar Reference or Aranchor Mobile?

CRSI Rebar Reference ships an update every 5 weeks, and Aranchor Mobile fortnightly. Most recently, CRSI Rebar Reference was updated on October 21, 2026 and Aranchor Mobile on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*