# Calto vs InkCalc

The clearest difference is in-app purchases: Calto at none against InkCalc's 1. Calto also leads on iOS requirement (15.6 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. InkCalc sells 1 in-app purchase, starting at $1.99 per month. Calto asks for nothing beyond the download.

Calto ships an update every 9 days, InkCalc fortnightly. The most recent releases landed on October 12, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Calto | InkCalc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Fortnightly |
| Size | 30 MB | 2 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [JONGWOO PARK](https://appshunter.io/developer/1873952653) | [KENTARO SOGA](https://appshunter.io/developer/1883580671) |

## What reviewers say

### Calto

[App page](https://appshunter.io/ios/app/calto-note-calculator/id6758614596)

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

**In-app purchases:** none


### InkCalc

[App page](https://appshunter.io/ios/app/inkcalc-notepad-calculator/id6763837608)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| InkCalc Monthly | $1.99 | per month |


## Frequently asked questions

### Is Calto free?

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

### Is InkCalc free?

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

### Do Calto or InkCalc have ads?

Neither Calto nor InkCalc shows ads.

### Which is updated more often, Calto or InkCalc?

Calto ships an update every 9 days, and InkCalc fortnightly. Most recently, Calto was updated on October 12, 2026 and InkCalc on October 15, 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.*