# CorrectNote vs EdU LibMap

The clearest difference is price: EdU LibMap at Free against CorrectNote's $1.99. EdU LibMap also leads on update cadence (every 3 months vs every 9 months). CorrectNote's advantage is iOS requirement (8.0 vs 16.0). On ads, in-app purchases and device support there is nothing between them.

EdU LibMap is free to download; CorrectNote costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

CorrectNote ships an update every 9 months, EdU LibMap every 3 months. The most recent releases landed on September 22, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | CorrectNote | EdU LibMap |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 3 months** |
| Monetization | Paid | — |
| Size | 32 MB | 12 MB |
| Requires iOS | **8.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [祁庆 吴](https://appshunter.io/developer/801931888) | [The Education University of Hong Kong](https://appshunter.io/developer/1130838504) |

## What reviewers say

### CorrectNote

[App page](https://appshunter.io/ios/app/correctnote/id904820413)

This app serves as a digital corrections notebook for students, allowing them to capture mistakes with photos and record error causes and corrections. It provides an accessible way to review learned material anytime, anywhere, eliminating the risk of losing a physical notebook.

**Highlights:** Digital corrections notebook, Capture mistakes with photos, Input error causes and corrections, Review corrections anytime, Eliminates lost paper notebooks

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

**In-app purchases:** none


### EdU LibMap

[App page](https://appshunter.io/ios/app/edu-libmap/id1434267358)

**In-app purchases:** none


## Frequently asked questions

### Is CorrectNote free?

CorrectNote costs $1.99, with no in-app purchases.

### Is EdU LibMap free?

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

### Do CorrectNote or EdU LibMap have ads?

Neither CorrectNote nor EdU LibMap shows ads.

### Which is updated more often, CorrectNote or EdU LibMap?

CorrectNote ships an update every 9 months, and EdU LibMap every 3 months. Most recently, CorrectNote was updated on September 22, 2026 and EdU LibMap on September 29, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*