# Simple Calculator vs iBigCalc

The clearest difference is in-app purchases: iBigCalc at none against Simple Calculator's 2. Simple Calculator's advantage is iOS requirement (15.0 vs 17). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Simple Calculator sells 2 one-off in-app purchases. iBigCalc asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on September 20, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Simple Calculator | iBigCalc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Size | 9 MB | 5 MB |
| Requires iOS | **15.0** | 17 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Takao Ichimura](https://appshunter.io/developer/1474061593) | [Manh Phi Nguyen](https://appshunter.io/developer/1461707344) |

## What reviewers say

### Simple Calculator

[App page](https://appshunter.io/ios/app/simple-calculator-practicalc/id6760546131)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |
| Remove Ads + Support | $2.99 | one-time |


### iBigCalc

[App page](https://appshunter.io/ios/app/ibigcalc/id6760924865)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Simple Calculator free?

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

### Is iBigCalc free?

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

### Do Simple Calculator or iBigCalc have ads?

Both Simple Calculator and iBigCalc show ads.

### Which is updated more often, Simple Calculator or iBigCalc?

Simple Calculator ships an update every 3 weeks, and iBigCalc every 3 weeks. Most recently, Simple Calculator was updated on September 20, 2026 and iBigCalc on September 30, 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.*