# Rebar Calc vs Retaining Wall Planner

The clearest difference is price: Rebar Calc at Free against Retaining Wall Planner's $4.99. Retaining Wall Planner's advantage is ads (none vs shown) and update cadence (weekly vs every 2 months). On in-app purchases, device support and iOS requirement there is nothing between them.

Rebar Calc is free to download; Retaining Wall Planner costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Rebar Calc ships an update every 2 months, Retaining Wall Planner weekly. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Rebar Calc | Retaining Wall Planner |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | **[4.9 (644 ratings)](https://appshunter.io/ios/app/rebar-calc/id1134344254/reviews)** | — |
| Number of ratings | **644** | — |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Ad-supported | — |
| Size | 13 MB | 1 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Appco LLC (USA)](https://appshunter.io/developer/1027562416) | [光 杨](https://appshunter.io/developer/1891134953) |

## What reviewers say

### 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


### Retaining Wall Planner

[App page](https://appshunter.io/ios/app/retaining-wall-planner/id6767141922)

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

**In-app purchases:** none


## Frequently asked questions

### Is Rebar Calc free?

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

### Is Retaining Wall Planner free?

Retaining Wall Planner costs $4.99, with no in-app purchases.

### Do Rebar Calc or Retaining Wall Planner have ads?

Rebar Calc shows ads; Retaining Wall Planner does not.

### Which is updated more often, Rebar Calc or Retaining Wall Planner?

Rebar Calc ships an update every 2 months, and Retaining Wall Planner weekly. Most recently, Rebar Calc was updated on November 2, 2026 and Retaining Wall Planner on October 31, 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.*