# Calculator Express with Notes vs Zen Calculator

The clearest difference is device support: Calculator Express with Notes at 4 against Zen Calculator's —. Zen Calculator's advantage is iOS requirement (12.4 vs 14.0). On price and in-app purchases there is nothing between them.

Both are free to download. Calculator Express with Notes sells 2 one-off in-app purchases and Zen Calculator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Calculator Express with Notes | Zen Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (48 ratings)](https://appshunter.io/ios/app/calculator-express-with-notes/id1604079825/reviews)** | — |
| Number of ratings | **48** | — |
| Positive reviews | 69.2% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | — |
| Update frequency | Monthly | — |
| Monetization | Free with in-app purchases | — |
| Size | 28 MB | 13 MB |
| Requires iOS | 14.0 | **12.4** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | — |
| Age rating | 4+ | 4+ |
| Developer | [RAMAN KHVASHCHEUSKI](https://appshunter.io/developer/1437493298) | [Andrew Attard](https://appshunter.io/developer/1677333166) |

## What reviewers say

### Calculator Express with Notes

[App page](https://appshunter.io/ios/app/calculator-express-with-notes/id1604079825)

A beautifully designed utility app offering six essential tools, including currency, unit, and percentage converters, plus calculators for BMI, tips, and world time. Users can customize the app's appearance and manage calculation history with notes and labels.

**Highlights:** Currency converter, Unit converter, Percentage calculator, BMI calculator, Tip calculator, World time converter, Customizable appearance, Calculation history with notes

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads -50% off | $1.99 | one-time |
| Remove Ads | $4.99 | one-time |


### Zen Calculator

[App page](https://appshunter.io/ios/app/zen-calculator/id6462659226)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Supporting the devs work | $0.99 | one-time |


## Frequently asked questions

### Is Calculator Express with Notes free?

Calculator Express with Notes is free to download, with in-app purchases available.

### Is Zen Calculator free?

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

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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.*