# bDrive vs Feynman AI

The clearest difference is in-app purchases: bDrive at none against Feynman AI's 9. bDrive also leads on iOS requirement (9.0 vs 17.0). Feynman AI's advantage is update cadence (fortnightly vs every 5 months). On price, ads and device support there is nothing between them.

Both are free to download. Feynman AI sells 9 in-app purchases, starting at $5.99 per 7 days. bDrive asks for nothing beyond the download.

bDrive ships an update every 5 months, Feynman AI fortnightly. The most recent releases landed on October 26, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | bDrive | Feynman AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (58 ratings)](https://appshunter.io/ios/app/feynman-ai-study-and-memorize/id6738724586/reviews)** |
| Number of ratings | — | **58** |
| Positive reviews | — | 85.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Fortnightly** |
| Monetization | — | Free with in-app purchases |
| Size | 107 MB | 61 MB |
| Requires iOS | **9.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [BIESSE S.P.A.](https://appshunter.io/developer/1267334634) | [Feynman EinsteinAI Note Taker OU](https://appshunter.io/developer/1782064427) |

## What reviewers say

### bDrive

[App page](https://appshunter.io/ios/app/bdrive/id1437484482)

**Features:** macOS Compatibility

**In-app purchases:** none


### Feynman AI

[App page](https://appshunter.io/ios/app/feynman-ai-study-and-memorize/id6738724586)

This learning assistant transforms various content like YouTube videos, audio, and PDFs into transcriptions, summaries, and quizzes. It helps users organize notes and access materials on any device for efficient studying.

**Highlights:** Accurate transcriptions, Concise summaries, Automatic quiz generation, Organized notes, Cross-device accessibility, Document analysis

**Features:** Vision Pro support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $5.99 | per 7 days |
| Monthly Subscription | $14.99 | per month |
| Monthly Subscription | $15.99 | per month |
| 3 Month Subscription | $29.99 | per 3 months |
| Yearly Subscription | $29.99 | per year |
| Yearly Subscription | $39.99 | per year |
| Yearly Subscription | $69.99 | per year |
| 12 Month Subscription | $79.99 | per year |
| Lifetime Access | $89.99 | one-time |


## Frequently asked questions

### Is bDrive free?

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

### Is Feynman AI free?

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

### Do bDrive or Feynman AI have ads?

Neither bDrive nor Feynman AI shows ads.

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

bDrive ships an update every 5 months, and Feynman AI fortnightly. Most recently, bDrive was updated on October 26, 2026 and Feynman AI on October 28, 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.*