# CalcNotes vs Byosoku Memo

The clearest difference is ads: CalcNotes at none against Byosoku Memo's shown. CalcNotes also leads on update cadence (weekly vs fortnightly) and iOS requirement (15.1 vs 17.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. CalcNotes sells 2 in-app purchases, starting at $1.99 per month and Byosoku Memo sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

CalcNotes ships an update weekly, Byosoku Memo fortnightly. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | CalcNotes | Byosoku Memo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Fortnightly |
| Size | 52 MB | 8 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [naoki otsu](https://appshunter.io/developer/1082476153) | [丽佳 施](https://appshunter.io/developer/1894580777) |

## What reviewers say

### CalcNotes

[App page](https://appshunter.io/ios/app/calcnotes-calculation-memo/id6752585573)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $1.99 | per month |
| Premium (Pay Once) | $4.99 | one-time |


### Byosoku Memo

[App page](https://appshunter.io/ios/app/byosoku-memo/id6791356737)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.49 | one-time |


## Frequently asked questions

### Is CalcNotes free?

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

### Is Byosoku Memo free?

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

### Do CalcNotes or Byosoku Memo have ads?

Byosoku Memo shows ads; CalcNotes does not.

### Which is updated more often, CalcNotes or Byosoku Memo?

CalcNotes ships an update weekly, and Byosoku Memo fortnightly. Most recently, CalcNotes was updated on November 5, 2026 and Byosoku Memo on October 31, 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.*