# Calclin vs I

The clearest difference is in-app purchases: I at none against Calclin's 2. I also leads on iOS requirement (12.0 vs 18.0). Calclin's advantage is ads (none vs shown) and update cadence (every 2 months vs every 6 months). On price and device support there is nothing between them.

Both are free to download. Calclin sells 2 one-off in-app purchases. I asks for nothing beyond the download.

Calclin ships an update every 2 months, I every 6 months. The most recent releases landed on October 15, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Calclin | I |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/calclin/id385216637/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 6 months |
| Monetization | Free | — |
| Size | 9 MB | 35 MB |
| Requires iOS | 18.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Azukid.com](https://appshunter.io/developer/354937951) | [Towa TAKEUCHI](https://appshunter.io/developer/1681125787) |

## What reviewers say

### Calclin

[App page](https://appshunter.io/ios/app/calclin/id385216637)

This calculator app provides a paper-roll style history for easy review of calculations. It supports formula input, notes for results, and multiple calculation frames to organize different tasks. Users can customize display modes and appearance.

**Highlights:** Paper-roll style calculation history, Multiple calculation frames, Formula input with parentheses and functions, Notes for calculation results, PDF export, Customizable digit grouping, separators, and rounding, Auto, Light, and Dark appearance modes

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tips_1 | $0.99 | one-time |
| Tips_5 | $4.99 | one-time |


### I

[App page](https://appshunter.io/ios/app/i-memo/id6502877993)

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

**In-app purchases:** none


## Frequently asked questions

### Is Calclin free?

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

### Is I free?

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

### Do Calclin or I have ads?

I shows ads; Calclin does not.

### Which is updated more often, Calclin or I?

Calclin ships an update every 2 months, and I every 6 months. Most recently, Calclin was updated on October 15, 2026 and I on October 21, 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.*