# Robust PFT vs Ask Teacher

The clearest difference is update cadence: Ask Teacher at weekly against Robust PFT's monthly. On price, ads, in-app purchases and device support there is nothing between them.

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

Robust PFT ships an update monthly, Ask Teacher weekly. Both last shipped on October 7, 2026.

## The numbers

| Metric | Robust PFT | Ask Teacher |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (4 ratings)](https://appshunter.io/ios/app/ask-teacher-ai-study-tutor/id6503633017/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Monetization | — | Free |
| Size | 10 MB | 68 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jesus Garcia](https://appshunter.io/developer/1181272480) | [FVAWI DREIN INC](https://appshunter.io/developer/1764304063) |

## What reviewers say

### Robust PFT

[App page](https://appshunter.io/ios/app/robust-pft/id1181272901)

**Features:** macOS Compatibility

**In-app purchases:** none


### Ask Teacher

[App page](https://appshunter.io/ios/app/ask-teacher-ai-study-tutor/id6503633017)

This AI-powered companion provides step-by-step solutions and clear explanations for complex STEM problems. It helps users master mathematics, physics, and chemistry through instant answers, data analysis, and photo recognition.

**Highlights:** Instant STEM problem solutions, Step-by-step explanations, Photo recognition for problems, Scientific data analysis, Clear explanations of physical laws, Covers basic to advanced topics

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Robust PFT free?

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

### Is Ask Teacher free?

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

### Do Robust PFT or Ask Teacher have ads?

Neither Robust PFT nor Ask Teacher shows ads.

### Which is updated more often, Robust PFT or Ask Teacher?

Robust PFT ships an update monthly, and Ask Teacher weekly. Most recently, Robust PFT was updated on October 7, 2026 and Ask Teacher on October 7, 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.*