# ExamNote vs K

The clearest difference is price: ExamNote at Free against K's $0.99. ExamNote also leads on update cadence (every 5 days vs every 2 weeks). K's advantage is in-app purchases (none vs 2). On ads, device support and iOS requirement there is nothing between them.

ExamNote is free to download; K costs $0.99 up front. ExamNote sells 2 in-app purchases, starting at $3.99 per month. K asks for nothing beyond the download.

ExamNote ships an update every 5 days, K every 2 weeks. The most recent releases landed on October 28, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | ExamNote | K |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 2 weeks |
| Monetization | — | Paid |
| Size | 73 MB | 4 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ossoba.llc](https://appshunter.io/developer/1796576141) | [Masaki Kobayashi](https://appshunter.io/developer/1882180437) |

## What reviewers say

### ExamNote

[App page](https://appshunter.io/ios/app/examnote/id6742053303)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium1ヶ月プラン | $3.99 | per month |
| 買い切りプラン | $19.99 | one-time |


### K

[App page](https://appshunter.io/ios/app/k-mol-molecular-model/id6772762907)

Create and visualize 2D and 3D molecular models with intuitive drawing tools and AR capabilities. This app serves as a practical and cost-effective alternative to physical model kits for students.

**Highlights:** 2D structural formula drawing, 3D molecular model visualization, Augmented Reality (AR) viewing, Save and reopen models, Pre-built templates, Screenshot capture

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

**In-app purchases:** none


## Frequently asked questions

### Is ExamNote free?

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

### Is K free?

K costs $0.99, with no in-app purchases.

### Do ExamNote or K have ads?

Neither ExamNote nor K shows ads.

### Which is updated more often, ExamNote or K?

ExamNote ships an update every 5 days, and K every 2 weeks. Most recently, ExamNote was updated on October 28, 2026 and K on October 11, 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.*