# Whyfy vs MathAI Problem Solver

The clearest difference is in-app purchases: Whyfy at none against MathAI Problem Solver's 3. Whyfy also leads on update cadence (every 9 days vs monthly) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. MathAI Problem Solver sells 3 in-app purchases, starting at $5.99 per 7 days. Whyfy asks for nothing beyond the download.

Whyfy ships an update every 9 days, MathAI Problem Solver monthly. The most recent releases landed on September 8, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | Whyfy | MathAI Problem Solver |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Monthly |
| Monetization | Free | — |
| Size | 14 MB | 17 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [超 范](https://appshunter.io/developer/1747641417) | [Mesut Aygun](https://appshunter.io/developer/1749947048) |

## What reviewers say

### Whyfy

[App page](https://appshunter.io/ios/app/whyfy/id6503213259)

This AI-powered assistant helps you uncover the root causes of problems by generating insightful questions and potential answers. It offers web search integration, personalized record-keeping, and the ability to explore multiple answer branches to deepen your understanding.

**Highlights:** AI-generated questions and answers, Web search integration, Personalized question history, Continuous questioning for root cause analysis, Flexible archiving and sharing, Multiple answer branches

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

**In-app purchases:** none


### MathAI Problem Solver

[App page](https://appshunter.io/ios/app/mathai-problem-solver/id6504986572)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium MathAi Weekly | $5.99 | per 7 days |
| MathAi Monthly Premium | $14.99 | per month |
| MathAi Solver | $0.99 | one-time |


## Frequently asked questions

### Is Whyfy free?

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

### Is MathAI Problem Solver free?

MathAI Problem Solver is free to download, with in-app purchases available.

### Do Whyfy or MathAI Problem Solver have ads?

Neither Whyfy nor MathAI Problem Solver shows ads.

### Which is updated more often, Whyfy or MathAI Problem Solver?

Whyfy ships an update every 9 days, and MathAI Problem Solver monthly. Most recently, Whyfy was updated on September 8, 2026 and MathAI Problem Solver on September 13, 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.*