# Site Stabilization Calculator vs Rebar Calc

The clearest difference is update cadence: Rebar Calc at every 2 months against Site Stabilization Calculator's every 12 months. Rebar Calc also leads on review sentiment (60% vs 50%). Site Stabilization Calculator's advantage is iOS requirement (15.1 vs 18.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Site Stabilization Calculator ships an update every 12 months, Rebar Calc every 2 months. The most recent releases landed on November 2, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Site Stabilization Calculator | Rebar Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (643 ratings)](https://appshunter.io/ios/app/rebar-calc/id1134344254/reviews)** |
| Number of ratings | — | **643** |
| Positive reviews | 50.0% of reviews | **60.0% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 12 months | **Every 2 months** |
| Monetization | Ad-supported | Ad-supported |
| Size | 20 MB | 13 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [TYJA Enterprises Corporation](https://appshunter.io/developer/1626166382) | [Appco LLC (USA)](https://appshunter.io/developer/1027562416) |

## What reviewers say

### Site Stabilization Calculator

[App page](https://appshunter.io/ios/app/site-stabilization-calculator/id1131344964)

Calculate spread rates for soil stabilization materials like cement and quicklime, or liquid stabilizers. Estimate project materials such as undercuts, aggregate base course, asphalt, and concrete. Save and share project details with notes and images.

**Highlights:** Calculate spread rates for stabilizing powders, Estimate undercuts, aggregate base course, asphalt, concrete, Save calculations into projects, Add supporting notes and images, Share project calculations, notes, and images

**Features:** macOS Compatibility

**In-app purchases:** none


### Rebar Calc

[App page](https://appshunter.io/ios/app/rebar-calc/id1134344254)

This app simplifies concrete and rebar calculations for construction projects. It helps estimate rebar tonnage, mesh quantities, and concrete volume, and can even provide quotes for materials.

**Highlights:** Rebar tonnage calculation, Sheet and roll mesh estimation, Concrete volume estimator, Material quote generation, Adjustable lap amount, Configurable rebar/mesh size

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

**In-app purchases:** none


## Frequently asked questions

### Is Site Stabilization Calculator free?

Site Stabilization Calculator is free to download, with no in-app purchases.

### Is Rebar Calc free?

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

### Do Site Stabilization Calculator or Rebar Calc have ads?

Both Site Stabilization Calculator and Rebar Calc show ads.

### Which is updated more often, Site Stabilization Calculator or Rebar Calc?

Site Stabilization Calculator ships an update every 12 months, and Rebar Calc every 2 months. Most recently, Site Stabilization Calculator was updated on November 2, 2026 and Rebar Calc on November 6, 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.*