# x vs StackCalc Calculator

The clearest difference is update cadence: x at fortnightly against StackCalc Calculator's every 2 months. StackCalc Calculator's advantage is device support (3 vs 1) and iOS requirement (16.0 vs 18.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

x ships an update fortnightly, StackCalc Calculator every 2 months. The most recent releases landed on November 8, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | x | StackCalc Calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 months |
| Size | 1 MB | 102 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | iPhone | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [FMILLET](https://appshunter.io/developer/550887984) | [Abraham Bagherjeiran](https://appshunter.io/developer/1513861366) |

## What reviewers say

### x

[App page](https://appshunter.io/ios/app/x-cal-plus/id6747112339)

**Features:** macOS Compatibility

**In-app purchases:** none


### StackCalc Calculator

[App page](https://appshunter.io/ios/app/stackcalc-calculator/id6801788040)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is x free?

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

### Is StackCalc Calculator free?

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

### Do x or StackCalc Calculator have ads?

Neither x nor StackCalc Calculator shows ads.

### Which is updated more often, x or StackCalc Calculator?

x ships an update fortnightly, and StackCalc Calculator every 2 months. Most recently, x was updated on November 8, 2026 and StackCalc Calculator on November 10, 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.*