# Flatness vs CV

The clearest difference is in-app purchases: Flatness at none against CV's 1. Flatness also leads on iOS requirement (12.0 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. CV sells 1 one-off in-app purchase. Flatness asks for nothing beyond the download.

## The numbers

| Metric | Flatness | CV |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/flatness/id6463624359/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 16 months | — |
| Monetization | Free | — |
| Size | 61 MB | 4 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ACOEM Group](https://appshunter.io/developer/1495816959) | [Victor Hugo Pineda Arizaca](https://appshunter.io/developer/1873501322) |

## What reviewers say

### Flatness

[App page](https://appshunter.io/ios/app/flatness/id6463624359)

This app facilitates precise rectangular flatness measurements for applications like motor and pump foundations. It guides users through the entire measurement and alignment process when connected to an AT-400 Ultimate with an M9 sensor via Bluetooth. Generate instant PDF reports of your findings directly on-site.

**Highlights:** Bluetooth connectivity, Icon-based adaptive user interface, 3D result views, Instant PDF report generation, Guided measurement process

**Features:** macOS Compatibility

**In-app purchases:** none


### CV

[App page](https://appshunter.io/ios/app/cv-unit-converter/id6758536339)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Lifetime Access | $2.99 | one-time |


## Frequently asked questions

### Is Flatness free?

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

### Is CV free?

CV is free to download, with in-app purchases available.

### Do Flatness or CV have ads?

Neither Flatness nor CV shows ads.

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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.*