# Questi vs SMIS Mentor

Questi and SMIS Mentor are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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 October 24, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Questi | SMIS Mentor |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 83.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | Weekly |
| Monetization | Free | — |
| Size | 14 MB | 144 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Bnz Inc](https://appshunter.io/developer/1602520806) | [Sunwoong Shin](https://appshunter.io/developer/1821146391) |

## 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

**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


### SMIS Mentor

[App page](https://appshunter.io/ios/app/smis-mentor/id6759916856)

**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 SMIS Mentor free?

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

### Do Questi or SMIS Mentor have ads?

Neither Questi nor SMIS Mentor shows ads.

### Which is updated more often, Questi or SMIS Mentor?

Questi ships an update weekly, and SMIS Mentor weekly. Most recently, Questi was updated on October 24, 2026 and SMIS Mentor on October 12, 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.*