# 단국대학교. vs Questi

The clearest difference is review sentiment: Questi at 84% against 단국대학교.'s 0%. Questi also leads on update cadence (weekly vs every 4 months). 단국대학교.'s advantage is iOS requirement (11.0 vs 15.1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

단국대학교. ships an update every 4 months, Questi weekly. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | 단국대학교. | Questi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/id405020237/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | **83.9% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Weekly** |
| Monetization | Free | Free |
| Size | 25 MB | 14 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Dankook University](https://appshunter.io/developer/1623116053) | [Bnz Inc](https://appshunter.io/developer/1602520806) |

## What reviewers say

### 단국대학교.

[App page](https://appshunter.io/ios/app/id405020237)

This official university app provides essential services for students, faculty, and staff. Access your course schedule, grades, attendance, and more. It also offers features like a mobile ID, push notifications, and links to various university systems.

**Highlights:** Mobile ID, Push notifications, Portal access, Web information system, Course schedule, Grade lookup, Attendance tracking

**Features:** macOS Compatibility

**In-app purchases:** none


### Questi

[App page](https://appshunter.io/ios/app/questi-ai-problem-solver/id6736639784)

This AI-powered app provides clear explanations for complex problems across all academic levels, from elementary to university. It helps users understand the essence of problems, maximize learning efficiency, and offers accessibility on multiple devices.

**Highlights:** AI-powered explanations, Covers all academic levels, In-depth understanding, Maximize learning efficiency, Accessible on PC, tablet, smartphone

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

**In-app purchases:** none

**What reviewers like**

- ✅ Solves complex math problems accurately
- 💡 Detailed and easy-to-understand explanations
- 👍 Free to use with many features
- 🚀 Fast problem-solving (mostly)
- 💯 High accuracy and reliable answers

**What reviewers complain about**

- 💰 Pricing is a concern for some
- 🐢 Speed can be a bit slow at times
- ⚫ Dark background preference for some users
- ⚠️ Sometimes misinterprets problems
- ❌ AI can insist it's correct even when wrong

**Reported bugs**

- Error code -1002 when trying to pay
- App crashes when clicking 'inquire'
- AI stops answering questions
- Cannot log in after deleting and reinstalling
- App not opening sometimes

**Requested features**

- Option for white background
- Improve payment functionality within the app
- Allow simultaneous solving of multiple problems
- iPad support for book chat feature


## Frequently asked questions

### Is 단국대학교. free?

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

### Is Questi free?

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

### Do 단국대학교. or Questi have ads?

Neither 단국대학교. nor Questi shows ads.

### Which is updated more often, 단국대학교. or Questi?

단국대학교. ships an update every 4 months, and Questi weekly. Most recently, 단국대학교. was updated on November 1, 2026 and Questi on November 4, 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.*