# Questi vs 다풀

The clearest difference is review sentiment: Questi at 84% against 다풀's 0%. Questi also leads on monetization model (free vs free with in-app purchases). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on September 14, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Questi | 다풀 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **83.9% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | Weekly |
| Monetization | **Free** | Free with in-app purchases |
| Size | 14 MB | 166 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bnz Inc](https://appshunter.io/developer/1602520806) | [Happy Edu Tech Co., Ltd.](https://appshunter.io/developer/1613097298) |

## What reviewers say

### 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


### 다풀

[App page](https://appshunter.io/ios/app/ai/id6756995656)

Instantly solve homework problems with AI. Snap a photo to get step-by-step video explanations, detailed grading, and personalized feedback. Master any subject with a comprehensive AI tutor.

**Highlights:** AI-powered problem solving via photo, Step-by-step video explanations, Detailed partial grading of solutions, Full subject support for all grades, Automatic mistake tracking and note generation, Personalized AI tutoring

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

**In-app purchases:** none


## Frequently asked questions

### Is Questi free?

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

### Is 다풀 free?

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

### Do Questi or 다풀 have ads?

Neither Questi nor 다풀 shows ads.

### Which is updated more often, Questi or 다풀?

Questi ships an update weekly, and 다풀 weekly. Most recently, Questi was updated on September 14, 2026 and 다풀 on September 9, 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.*