# Concrete Calculator Tools vs Smart Drainage System Control

The clearest difference is in-app purchases: Smart Drainage System Control at none against Concrete Calculator Tools's 4. Smart Drainage System Control also leads on ads (none vs shown) and update cadence (every 5 days vs every 2 months). Concrete Calculator Tools's advantage is ratings volume (51 vs 1). On price and device support there is nothing between them.

Both are free to download. Concrete Calculator Tools sells 4 in-app purchases, starting at $3.99 per 7 days. Smart Drainage System Control asks for nothing beyond the download.

Smart Drainage System Control holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Concrete Calculator Tools has 51 ratings behind it against 1, so its average is the more settled of the two.

Concrete Calculator Tools ships an update every 2 months, Smart Drainage System Control every 5 days. The most recent releases landed on October 24, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Concrete Calculator Tools | Smart Drainage System Control |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (51 ratings)](https://appshunter.io/ios/app/concrete-calculator-tools/id6741408557/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/smart-drainage-system-control/id6752671573/reviews)** |
| Number of ratings | **51** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 39 MB | 37 MB |
| Requires iOS | 18.0 | **15.3** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Peth Pty Ltd](https://appshunter.io/developer/662891650) | [Agri Drain](https://appshunter.io/developer/1783382657) |

## What reviewers say

### Concrete Calculator Tools

[App page](https://appshunter.io/ios/app/concrete-calculator-tools/id6741408557)

This app simplifies concrete volume calculations for professionals and DIYers. It offers flexible unit support and a free rectangular slab calculator, with advanced features available via subscription.

**Highlights:** Flexible unit support (metric/imperial), Rectangular slab calculator (free), Circular slab calculator, Circular column calculator, Post hole calculator, Slab from area calculator

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Pro | $3.99 | per 7 days |
| Monthly Pro | $5.99 | per month |
| Annual Pro | $19.99 | per year |
| One-Time Purchase | $85.00 | one-time |


### Smart Drainage System Control

[App page](https://appshunter.io/ios/app/smart-drainage-system-control/id6752671573)

Manage farm water systems for increased profitability and environmental protection. Optimize drainage, sub-irrigation, and conservation practices to improve water quality, boost yields, and reduce soil erosion.

**Highlights:** Water management optimization, Drainage water management, Sub-irrigation, Conservation practices, Improved water quality, Increased farm profitability

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Concrete Calculator Tools free?

Concrete Calculator Tools is free to download, with in-app purchases available.

### Is Smart Drainage System Control free?

Smart Drainage System Control is free to download, with no in-app purchases.

### Which has better reviews, Concrete Calculator Tools or Smart Drainage System Control?

Smart Drainage System Control is rated higher. Concrete Calculator Tools averages 4.7 out of 5 from 51 ratings, while Smart Drainage System Control averages 5.0 from 1 ratings.

### Do Concrete Calculator Tools or Smart Drainage System Control have ads?

Concrete Calculator Tools shows ads; Smart Drainage System Control does not.

### Which is updated more often, Concrete Calculator Tools or Smart Drainage System Control?

Concrete Calculator Tools ships an update every 2 months, and Smart Drainage System Control every 5 days. Most recently, Concrete Calculator Tools was updated on October 24, 2026 and Smart Drainage System Control on October 13, 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.*