# Flash Notes vs 卓优商学

The clearest difference is in-app purchases: Flash Notes at none against 卓优商学's 6. 卓优商学's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. 卓优商学 sells 6 one-off in-app purchases. Flash Notes asks for nothing beyond the download.

Flash Notes ships an update fortnightly, 卓优商学 every 3 weeks. The most recent releases landed on September 24, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Flash Notes | 卓优商学 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Ad-supported | — |
| Size | 95 MB | 40 MB |
| Requires iOS | 15.5 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [铭 左](https://appshunter.io/developer/988623105) | [CHONGQING ZHUOYOU SHANGXUE TECHNOLOG YCO., LTD.](https://appshunter.io/developer/1140338558) |

## What reviewers say

### Flash Notes

[App page](https://appshunter.io/ios/app/flash-notes-smart-and-simple/id1501123305)

This study tool helps you create notes, flashcards, and memorize vocabulary. It uses science-backed methods to organize your learning and improve knowledge retention. Manage all your study materials in one unified hub for more effective learning.

**Highlights:** Rich text and image editing, Science-backed review plans, Apply memory methods to notes, Unified knowledge hub, Vocabulary memorization

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

**In-app purchases:** none


### 卓优商学

[App page](https://appshunter.io/ios/app/id1540894492)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 充值学币6元 | $0.99 | one-time |
| 充值学币12元 | $1.99 | one-time |
| 充值学币298元 | $39.99 | one-time |
| 充值学币488元 | $69.99 | one-time |
| 充值学币998元 | $149.99 | one-time |
| 充值学币2998元 | $399.99 | one-time |


## Frequently asked questions

### Is Flash Notes free?

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

### Is 卓优商学 free?

卓优商学 is free to download, with in-app purchases available.

### Do Flash Notes or 卓优商学 have ads?

Flash Notes shows ads; 卓优商学 does not.

### Which is updated more often, Flash Notes or 卓优商学?

Flash Notes ships an update fortnightly, and 卓优商学 every 3 weeks. Most recently, Flash Notes was updated on September 24, 2026 and 卓优商学 on September 25, 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.*