# CRSI Rebar Reference vs DeskFlex

The clearest difference is rating: DeskFlex at 5.0 against CRSI Rebar Reference's 3.3. DeskFlex also leads on in-app purchases (none vs 3) and iOS requirement (13.0 vs 15.1). CRSI Rebar Reference's advantage is review sentiment (33% vs 0%) and ratings volume (16 vs 1). On price, update cadence, ads and monetization model there is nothing between them.

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

DeskFlex 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. Written reviews complicate that: 33% of CRSI Rebar Reference's written reviews are positive against 0% of DeskFlex's, so the app with the better star average is not the one people write more warmly about.

CRSI Rebar Reference ships an update every 5 weeks, DeskFlex monthly. Both last shipped on June 1, 2026.

## The numbers

| Metric | CRSI Rebar Reference | DeskFlex |
| --- | --- | --- |
| 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/deskflex/id1436702521/reviews)** |
| Number of ratings | **16** | 1 |
| Positive reviews | **33.3% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Monthly** |
| Monetization | Free | Free |
| Size | 51 MB | 21 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Concrete Reinforcing Steel Institute](https://appshunter.io/developer/1423271564) | [DeskFlex Inc.](https://appshunter.io/developer/1175552169) |

## 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 |


### DeskFlex

[App page](https://appshunter.io/ios/app/deskflex/id1436702521)

This application allows users to efficiently manage workspace resources. You can check desk, equipment, and room availability, make reservations, and modify or cancel existing bookings. Access is granted through your DeskFlex credentials.

**Highlights:** Manage desk, equipment, and room space utilization, Check availability of workspaces, Make reservations for desks or rooms, Modify existing bookings, Cancel reservations

**Features:** macOS Compatibility

**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 DeskFlex free?

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

### Which has better reviews, CRSI Rebar Reference or DeskFlex?

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

### Do CRSI Rebar Reference or DeskFlex have ads?

Neither CRSI Rebar Reference nor DeskFlex shows ads.

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

CRSI Rebar Reference ships an update every 5 weeks, and DeskFlex monthly. Most recently, CRSI Rebar Reference was updated on June 1, 2026 and DeskFlex on June 1, 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.*