# 智慧二师 vs FlashStacks

The clearest difference is review sentiment: FlashStacks at 100% against 智慧二师's 15%. FlashStacks also leads on update cadence (every 8 days vs every 6 weeks). 智慧二师's advantage is in-app purchases (none vs 3) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. FlashStacks sells 3 in-app purchases, starting at $4.99 per month. 智慧二师 asks for nothing beyond the download.

智慧二师 ships an update every 6 weeks, FlashStacks every 8 days. The most recent releases landed on October 20, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 智慧二师 | FlashStacks |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (7 ratings)](https://appshunter.io/ios/app/flashstacks-flashcard-study/id6762071988/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | 15.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 8 days** |
| Monetization | **Free** | Freemium |
| Size | 128 MB | 11 MB |
| Requires iOS | **8.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [重庆云华科技有限公司](https://appshunter.io/developer/1124772993) | [Bailey Skewes](https://appshunter.io/developer/1892771018) |

## What reviewers say

### 智慧二师

[App page](https://appshunter.io/ios/app/id1137832854)

This app enhances the mobile digital campus experience for students of Chongqing Second Normal University. It streamlines daily life and boosts learning efficiency for those on campus.

**Highlights:** Mobile digital campus, Streamlined student life, Improved learning efficiency, Campus information access

**Features:** Vision Pro support

**In-app purchases:** none


### FlashStacks

[App page](https://appshunter.io/ios/app/flashstacks-flashcard-study/id6762071988)

Transform study materials into interactive Home Screen widgets. AI generates flashcards from PDFs, and spaced repetition optimizes learning. Visualize concepts with image occlusion and track progress with detailed stats.

**Highlights:** Home and Lock Screen widgets, AI-powered PDF to flashcard generation, Spaced repetition learning, Image occlusion cards, Progress tracking and stats, Customizable widget themes

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FlashStacks Premium — Monthly | $4.99 | per month |
| Premium Special Offer | $24.99 | per year |
| FlashStacks Premium — Annual | $39.99 | per year |


## Frequently asked questions

### Is 智慧二师 free?

智慧二师 is free to download, with no in-app purchases.

### Is FlashStacks free?

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

### Do 智慧二师 or FlashStacks have ads?

Neither 智慧二师 nor FlashStacks shows ads.

### Which is updated more often, 智慧二师 or FlashStacks?

智慧二师 ships an update every 6 weeks, and FlashStacks every 8 days. Most recently, 智慧二师 was updated on October 20, 2026 and FlashStacks on October 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.*