# Concrete Help vs Plain MEMO

The clearest difference is price: Plain MEMO at Free against Concrete Help's $1.99. Plain MEMO also leads on update cadence (every 6 days vs every 15 months). Concrete Help's advantage is iOS requirement (10.0 vs 12.0). On ads, in-app purchases and device support there is nothing between them.

Plain MEMO is free to download; Concrete Help costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Concrete Help ships an update every 15 months, Plain MEMO every 6 days. The most recent releases landed on October 7, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Concrete Help | Plain MEMO |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[4.7 (115 ratings)](https://appshunter.io/ios/app/concrete-help/id1006637649/reviews)** | — |
| Number of ratings | **115** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 6 days** |
| Monetization | Paid | — |
| Size | 6 MB | 100 MB |
| Requires iOS | **10.0** | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Armchair Engineering](https://appshunter.io/developer/398901339) | [Hyobeom Han](https://appshunter.io/developer/1739693153) |

## What reviewers say

### Concrete Help

[App page](https://appshunter.io/ios/app/concrete-help/id1006637649)

Easily calculate the concrete volume needed for various shapes like holes, slabs, and tubes. Customize input and output units, and set decimal precision for accurate measurements.

**Highlights:** Calculate concrete volume for holes, slabs, and tubes, Select input units (mm, cm, m, km, inches, feet, yards, miles), Select output units (cubic mm, cm, m, km, inches, feet, yards, miles), Customize decimal place precision, Supports iPhone and iPad

**Features:** Vision Pro support

**In-app purchases:** none


### Plain MEMO

[App page](https://appshunter.io/ios/app/plain-memo/id6504782512)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Concrete Help free?

Concrete Help costs $1.99, with no in-app purchases.

### Is Plain MEMO free?

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

### Do Concrete Help or Plain MEMO have ads?

Neither Concrete Help nor Plain MEMO shows ads.

### Which is updated more often, Concrete Help or Plain MEMO?

Concrete Help ships an update every 15 months, and Plain MEMO every 6 days. Most recently, Concrete Help was updated on October 7, 2026 and Plain MEMO on October 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.*