# Calculator² vs Focusity

The clearest difference is update cadence: Focusity at every 4 days against Calculator²'s every 3 months. Calculator²'s advantage is review sentiment (100% vs 91%) and iOS requirement (9.0 vs 26.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Calculator² sells 3 one-off in-app purchases and Focusity sells 5 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Calculator² ships an update every 3 months, Focusity every 4 days. The most recent releases landed on October 1, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Calculator² | Focusity |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **100.0% of reviews** | 90.9% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 78 MB | 188 MB |
| Requires iOS | **9.0** | 26.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Richard Walters](https://appshunter.io/developer/1137474748) | [Hiroaki Arimura](https://appshunter.io/developer/1817153761) |

## What reviewers say

### Calculator²

[App page](https://appshunter.io/ios/app/calculator/id1137474749)

This app offers a suite of specialized calculators, including scientific, financial, programmer, and basic functions. It also features a currency converter and a comprehensive unit converter for various needs.

**Highlights:** Scientific calculator with advanced functions, Financial calculator for loan and tax calculations, Programmer calculator for number base conversions, Currency converter with real-time rates, Unit converter for over 200 units, Basic calculator for everyday use

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Financial Calculator | $0.99 | one-time |
| Currency Converter | $0.99 | one-time |
| Calculator² Premium | $1.99 | one-time |


### Focusity

[App page](https://appshunter.io/ios/app/focusity-concentration-timer/id6776654515)

Transform focus sessions into tangible progress by building virtual world landmarks. Block distracting apps and enjoy ambient sounds to enhance concentration. Earn rewards and track your achievements in a visually engaging way.

**Highlights:** Build world landmarks while focusing, Block distracting apps and websites, Ambient soundscapes for deep focus, Home screen widget for progress tracking, Collection of finished landmarks, AI-generated custom cities, Premium exclusive landmarks and features

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Focusity Premium Monthly (Monthly) | $2.99 | per month |
| Focusity Premium Monthly (Yearly) | $19.99 | per year |
| Craft Ticket x1 | $0.99 | one-time |
| Craft Ticket x3 | $1.99 | one-time |
| Craft Ticket x6 | $3.99 | one-time |


## Frequently asked questions

### Is Calculator² free?

Calculator² is free to download, with in-app purchases available.

### Is Focusity free?

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

### Do Calculator² or Focusity have ads?

Neither Calculator² nor Focusity shows ads.

### Which is updated more often, Calculator² or Focusity?

Calculator² ships an update every 3 months, and Focusity every 4 days. Most recently, Calculator² was updated on October 1, 2026 and Focusity on October 7, 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.*