# CalculatorX vs Focus Timer

The clearest difference is update cadence: CalculatorX at every 6 days against Focus Timer's fortnightly. Focus Timer's advantage is iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. CalculatorX sells 1 one-off in-app purchase and Focus Timer sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

CalculatorX ships an update every 6 days, Focus Timer fortnightly. The most recent releases landed on September 20, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | CalculatorX | Focus Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (2 ratings)](https://appshunter.io/ios/app/calculatorx-smartcustomize/id6755351007/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 92.9% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Fortnightly |
| Monetization | Free | — |
| Size | 12 MB | 38 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [学良 靳](https://appshunter.io/developer/1791452413) | [EMRE KOTUN](https://appshunter.io/developer/1796678115) |

## What reviewers say

### CalculatorX

[App page](https://appshunter.io/ios/app/calculatorx-smartcustomize/id6755351007)

A fast and customizable calculator app that allows users to personalize themes, button styles, and view calculation history in real-time. Offers various display options and sound feedback for an enhanced user experience.

**Highlights:** Real-time calculation history, Customizable button colors and shapes, Multiple themes and light/dark modes, Decimal precision control, Exportable calculation history, Sound effects and voice feedback

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Premium | $2.99 | one-time |


### Focus Timer

[App page](https://appshunter.io/ios/app/focus-timer-time-tracker/id6756212274)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Access | $4.99 | per 7 days |
| Premium Access | $29.99 | per year |
| Premium Lifetime Access | $9.99 | one-time |


## Frequently asked questions

### Is CalculatorX free?

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

### Is Focus Timer free?

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

### Do CalculatorX or Focus Timer have ads?

Neither CalculatorX nor Focus Timer shows ads.

### Which is updated more often, CalculatorX or Focus Timer?

CalculatorX ships an update every 6 days, and Focus Timer fortnightly. Most recently, CalculatorX was updated on September 20, 2026 and Focus Timer on September 8, 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.*