# Feynman AI vs Shepherd

The clearest difference is rating: Shepherd at 5.0 against Feynman AI's 4.4. Shepherd also leads on ads (none vs shown) and update cadence (every 5 days vs monthly). Feynman AI's advantage is ratings volume (15 vs 4). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Feynman AI sells 5 in-app purchases, starting at $5.99 per 7 days and Shepherd sells 3 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Shepherd holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 15 and 4 respectively. Written reviews point the same way: 80% of Feynman AI's written reviews are positive against 100% of Shepherd's.

Feynman AI ships an update monthly, Shepherd every 5 days. The most recent releases landed on November 8, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Feynman AI | Shepherd |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (15 ratings)](https://appshunter.io/ios/app/feynman-ai-explain-to-learn/id6738237030/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/shepherd-ai-study-co-pilot/id6738656668/reviews)** |
| Number of ratings | **15** | 4 |
| Positive reviews | 80.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 5 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 76 MB | 54 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Geekclo Co., Ltd.](https://appshunter.io/developer/1481561066) | [Shepherd Learn Inc](https://appshunter.io/developer/1734228022) |

## What reviewers say

### Feynman AI

[App page](https://appshunter.io/ios/app/feynman-ai-explain-to-learn/id6738237030)

Master complex subjects by explaining them yourself and receive AI feedback to improve understanding and retention. Ideal for students, self-learners, and professionals seeking deeper knowledge.

**Highlights:** Practice explaining concepts, Real-time AI feedback and clarity scoring, Track learning progress over time, Build lasting mastery with active recall, Homework and study helper, Flashcards for memorization

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Feynman Learn - Weekly Plan | $5.99 | per 7 days |
| Feynman Learn - Monthly Plan | $9.99 | per month |
| Feynman Learn - Quarterly Plan | $29.99 | per 3 months |
| Feynman Learn - Annual Plan | $59.99 | per year |
| Feynman Learn - Annual Plan | $59.99 | per year |


### Shepherd

[App page](https://appshunter.io/ios/app/shepherd-ai-study-co-pilot/id6738656668)

This AI-powered companion helps students organize study materials, get instant tutoring, and create personalized study plans. It offers features like AI-driven document analysis, automatic lecture transcription, and step-by-step homework assistance to make learning more effective and less stressful.

**Highlights:** AI-powered Doc-Chat for summarizing and analyzing documents, AI Note Taker with automatic recording and transcription, AI Tutoring and step-by-step homework help, Smart Study Plans and reminders, Interactive flashcards and quizzes, Comparison of multiple sources

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Shephred Pro Weekly | $6.99 | per 7 days |
| Shepherd Pro | $19.99 | per month |
| Shepherd Pro Yearly | $149.99 | per year |


## Frequently asked questions

### Is Feynman AI free?

Feynman AI is free to download, with in-app purchases available.

### Is Shepherd free?

Shepherd is free to download, with in-app purchases available.

### Which has better reviews, Feynman AI or Shepherd?

Shepherd is rated higher. Feynman AI averages 4.4 out of 5 from 15 ratings, while Shepherd averages 5.0 from 4 ratings.

### Do Feynman AI or Shepherd have ads?

Feynman AI shows ads; Shepherd does not.

### Which is updated more often, Feynman AI or Shepherd?

Feynman AI ships an update monthly, and Shepherd every 5 days. Most recently, Feynman AI was updated on November 8, 2026 and Shepherd on October 30, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*