# Notedrill vs Biology AI

The clearest difference is device support: Notedrill at 3 against Biology AI's 1. Notedrill also leads on iOS requirement (15.1 vs 17.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Notedrill sells 9 in-app purchases, starting at $4.99 per 7 days and Biology AI sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Notedrill ships an update every 10 days, Biology AI every 5 days. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Notedrill | Biology AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (41 ratings)](https://appshunter.io/ios/app/notedrill-ai-note-taker/id6759670542/reviews)** | — |
| Number of ratings | **41** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 5 days** |
| Monetization | Subscription | — |
| Size | 61 MB | 4 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Idris Olayanju](https://appshunter.io/developer/1878207962) | [Faisal Ali Siddiqui](https://appshunter.io/developer/1878592797) |

## What reviewers say

### Notedrill

[App page](https://appshunter.io/ios/app/notedrill-ai-note-taker/id6759670542)

Instantly transcribe audio, video, PDFs, and images into organized notes. This AI-powered tool generates quizzes and flashcards from your notes, helping you learn and retain information more effectively. Export and share your notes easily.

**Highlights:** Instant transcription from audio, video, PDFs, and images, AI-powered quiz and flashcard generation, Chat with documents and notes, Summarize notes with AI, Export notes to PDF or text, Get notes from YouTube links

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Notedrill Weekly | $4.99 | per 7 days |
| Notedrill Weekly | $6.99 | per 7 days |
| Notedrill Plan Weekly | $6.99 | per 7 days |
| Notedrilll Monthly | $19.99 | per month |
| com.notedrill.plan.monthly | $24.99 | per month |
| notedrill_quarterly | $34.99 | per 3 months |
| Notedrill yearly onboarding | $69.99 | per year |
| Notedrill Yearly | $89.99 | per year |
| Notedrill Annual premium | $89.99 | per year |


### Biology AI

[App page](https://appshunter.io/ios/app/biology-ai-study-solver/id6788437564)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Biology Pro Monthly | $4.99 | per month |
| Biology Pro Yearly | $29.99 | per year |
| 30 Biology Solves | $1.99 | one-time |


## Frequently asked questions

### Is Notedrill free?

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

### Is Biology AI free?

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

### Do Notedrill or Biology AI have ads?

Neither Notedrill nor Biology AI shows ads.

### Which is updated more often, Notedrill or Biology AI?

Notedrill ships an update every 10 days, and Biology AI every 5 days. Most recently, Notedrill was updated on October 28, 2026 and Biology AI on October 24, 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.*