# Etrust vs BBnotes

The clearest difference is in-app purchases: Etrust at none against BBnotes's 10. Etrust also leads on iOS requirement (15.1 vs 17.0). BBnotes's advantage is update cadence (every 4 days vs monthly). On price, ads and device support there is nothing between them.

Both are free to download. BBnotes sells 10 in-app purchases, starting at $8.99 per month. Etrust asks for nothing beyond the download.

Etrust ships an update monthly, BBnotes every 4 days. The most recent releases landed on November 8, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | Etrust | BBnotes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (9 ratings)](https://appshunter.io/ios/app/bbnotes-ai-notes-and-pdf-tutor/id6758214249/reviews)** |
| Number of ratings | — | **9** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 4 days** |
| Monetization | — | Free with in-app purchases |
| Size | 49 MB | 36 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Etrust (PVT) Ltd](https://appshunter.io/developer/1826275702) | [甡朋 刘](https://appshunter.io/developer/1871350864) |

## What reviewers say

### Etrust

[App page](https://appshunter.io/ios/app/etrust/id6748556613)

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

**In-app purchases:** none


### BBnotes

[App page](https://appshunter.io/ios/app/bbnotes-ai-notes-and-pdf-tutor/id6758214249)

This AI-powered notebook helps international students study in a second language. It offers live bilingual captions for lectures, side-by-side PDF translation, and an AI tutor for contextual questions. Organize notes, summarize lectures, and sync across devices.

**Highlights:** Live bilingual lecture captions, Side-by-side PDF translation, AI tutor for contextual questions, Handwritten notes with Apple Pencil, Lecture summarization, Cross-device syncing

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $8.99 | per month |
| Pro Semester (3 Months) | $19.99 | per 3 months |
| BBNotes Premium Monthly | $19.99 | per month |
| BBNotes Premium 3-Month | $54.99 | per 3 months |
| Pro Yearly | $69.99 | per year |
| BBNotes Premium Annual | $199.99 | per year |
| 500 AI Points | $2.99 | one-time |
| 1000 AI Points | $4.99 | one-time |
| 3000 AI Points | $12.99 | one-time |
| 10000 AI Points | $24.99 | one-time |


## Frequently asked questions

### Is Etrust free?

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

### Is BBnotes free?

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

### Do Etrust or BBnotes have ads?

Neither Etrust nor BBnotes shows ads.

### Which is updated more often, Etrust or BBnotes?

Etrust ships an update monthly, and BBnotes every 4 days. Most recently, Etrust was updated on November 8, 2026 and BBnotes on November 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.*