# ProCalc vs *CalcMemo

The clearest difference is in-app purchases: *CalcMemo at none against ProCalc's 4. *CalcMemo also leads on ads (none vs shown) and update cadence (weekly vs monthly). ProCalc's advantage is iOS requirement (13.0 vs 16.4). On price and device support there is nothing between them.

Both are free to download. ProCalc sells 4 one-off in-app purchases. *CalcMemo asks for nothing beyond the download.

ProCalc ships an update monthly, *CalcMemo weekly. The most recent releases landed on October 19, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | ProCalc | *CalcMemo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Weekly** |
| Size | 34 MB | 37 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Penquinzoo Limited](https://appshunter.io/developer/1551454365) | [Tomoyuki Fukuzawa](https://appshunter.io/developer/1893263866) |

## What reviewers say

### ProCalc

[App page](https://appshunter.io/ios/app/procalc-calculator-app/id6756341509)

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Flat themes | $3.99 | one-time |
| Graphs and pdf export. | $3.99 | one-time |
| Unlock Neon themes | $4.99 | one-time |
| All  themes | $4.99 | one-time |


### *CalcMemo

[App page](https://appshunter.io/ios/app/calcmemo-calculator-notes/id6762182082)

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

**In-app purchases:** none


## Frequently asked questions

### Is ProCalc free?

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

### Is *CalcMemo free?

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

### Do ProCalc or *CalcMemo have ads?

ProCalc shows ads; *CalcMemo does not.

### Which is updated more often, ProCalc or *CalcMemo?

ProCalc ships an update monthly, and *CalcMemo weekly. Most recently, ProCalc was updated on October 19, 2026 and *CalcMemo on October 14, 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.*