# Simple VAT vs CoolOps

The clearest difference is in-app purchases: Simple VAT at none against CoolOps's 1. CoolOps's advantage is update cadence (weekly vs every 14 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. CoolOps sells 1 in-app purchase, starting at $14.99 per month. Simple VAT asks for nothing beyond the download.

Simple VAT ships an update every 14 months, CoolOps weekly. The most recent releases landed on October 8, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Simple VAT | CoolOps |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 47.1% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 14 months | **Weekly** |
| Monetization | Free | — |
| Size | 1 MB | 38 MB |
| Requires iOS | **17.0** | 18.2 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [OKD Limited](https://appshunter.io/developer/414568849) | [MOHAMMED ISHAO MOHAMMED](https://appshunter.io/developer/6775128201) |

## What reviewers say

### Simple VAT

[App page](https://appshunter.io/ios/app/simple-vat/id364931433)

Easily calculate Value Added Tax (VAT) by adding or subtracting it with a single tap. This free tool supports VAT rates for multiple countries and remembers your last session for quick access.

**Highlights:** Add or subtract VAT, Country-specific VAT rates, Saves application state, Simple and sleek design, 100% free to use

**Features:** Vision Pro support

**In-app purchases:** none


### CoolOps

[App page](https://appshunter.io/ios/app/coolops-hvac-invoice-maker/id6775128199)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $14.99 | per month |


## Frequently asked questions

### Is Simple VAT free?

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

### Is CoolOps free?

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

### Do Simple VAT or CoolOps have ads?

Neither Simple VAT nor CoolOps shows ads.

### Which is updated more often, Simple VAT or CoolOps?

Simple VAT ships an update every 14 months, and CoolOps weekly. Most recently, Simple VAT was updated on October 8, 2026 and CoolOps on October 3, 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.*