# LectureWatch vs CalNote

The clearest difference is in-app purchases: LectureWatch at none against CalNote's 3. LectureWatch also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). CalNote's advantage is update cadence (every 3 days vs every 2 months). On price and ads there is nothing between them.

Both are free to download. CalNote sells 3 in-app purchases, starting at $1.99 per month. LectureWatch asks for nothing beyond the download.

LectureWatch ships an update every 2 months, CalNote every 3 days. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | LectureWatch | CalNote |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 days** |
| Size | 8 MB | 122 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [TARO TATSUMI](https://appshunter.io/developer/1836111580) | [Atsushi Ito](https://appshunter.io/developer/6807432966) |

## What reviewers say

### LectureWatch

[App page](https://appshunter.io/ios/app/lecturewatch/id6754700306)

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

**In-app purchases:** none


### CalNote

[App page](https://appshunter.io/ios/app/calnote-paper-planner/id6820380370)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $1.99 | per month |
| Yearly Premium | $9.99 | per year |
| Lifetime Premium | $19.99 | one-time |


## Frequently asked questions

### Is LectureWatch free?

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

### Is CalNote free?

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

### Do LectureWatch or CalNote have ads?

Neither LectureWatch nor CalNote shows ads.

### Which is updated more often, LectureWatch or CalNote?

LectureWatch ships an update every 2 months, and CalNote every 3 days. Most recently, LectureWatch was updated on October 28, 2026 and CalNote 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.*