# SEMA3 vs AI Note Taker

The clearest difference is rating: AI Note Taker at 4.8 against SEMA3's 3.4. AI Note Taker also leads on review sentiment (75% vs 40%) and ratings volume (548 vs 7). SEMA3's advantage is in-app purchases (none vs 7). On price, ads and iOS requirement there is nothing between them.

Both are free to download. AI Note Taker sells 6 in-app purchases, starting at $5.99 per 7 days. SEMA3 asks for nothing beyond the download.

AI Note Taker holds the better App Store score, 4.8 against 3.4. That said, the two scores are not equally well evidenced: AI Note Taker has 548 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 40% of SEMA3's written reviews are positive against 75% of AI Note Taker's.

SEMA3 ships an update every 2 months, AI Note Taker monthly. The most recent releases landed on September 17, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | SEMA3 | AI Note Taker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.4 (7 ratings)](https://appshunter.io/ios/app/sema3/id1427120118/reviews) | **[4.8 (548 ratings)](https://appshunter.io/ios/app/ai-note-taker-notesai/id6504924859/reviews)** |
| Number of ratings | 7 | **548** |
| Positive reviews | 40.0% of reviews | **75.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 38 MB | 45 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Richard Sinnott](https://appshunter.io/developer/1080236817) | [Akash Jain](https://appshunter.io/developer/1473155604) |

## What reviewers say

### SEMA3

[App page](https://appshunter.io/ios/app/sema3/id1427120118)

Design and conduct smartphone-based survey research with this comprehensive software suite. It offers tools for creating and deploying ecological momentary assessments directly on mobile devices.

**Highlights:** Design survey research, Conduct smartphone surveys, Ecological momentary assessment, Mobile survey deployment, Research software suite

**Features:** macOS Compatibility

**In-app purchases:** none


### AI Note Taker

[App page](https://appshunter.io/ios/app/ai-note-taker-notesai/id6504924859)

This app leverages AI to streamline note-taking for lectures, meetings, and general voice recordings. It converts audio and video into text, automatically generating notes and meeting minutes for efficient information capture and organization.

**Highlights:** Automatic lecture notes generation, Voice to text conversion, Video to text note generation, Automatic meeting minutes, Smart note organization

**Features:** Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NotesAI Weekly | $5.99 | per 7 days |
| NotesAI Weekly | $8.99 | per 7 days |
| NotesAI Monthly | $9.99 | per month |
| NotesAI Yearly | $49.99 | per year |
| NotesAI Yearly | $99.99 | per year |
| NotesAI Lifetime | $49.99 | one-time |

**What reviewers like**

- 🚀 Accurate transcription
- 👍 Helpful for ADHD/neurodivergent users
- 💡 Generates flashcards and quizzes
- 👍 Great customer support
- 👍 Useful for nursing/high school students

**What reviewers complain about**

- 🐛 Transcription errors, especially for complex topics
- 🔒 Difficult to contact support
- 💰 Expensive premium subscription
- 🐛 Fails to upload/open recorded lectures

**Reported bugs**

- Transcription issues with non-English languages
- App not working in background
- Inability to delete/manage recorded lectures

**Requested features**

- Improved transcription of equations and formulas
- More inclusive and detailed summaries
- Automatic detection of important topics
- Better free version with more functionality


## Frequently asked questions

### Is SEMA3 free?

SEMA3 is free to download, with no in-app purchases.

### Is AI Note Taker free?

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

### Which has better reviews, SEMA3 or AI Note Taker?

AI Note Taker is rated higher. SEMA3 averages 3.4 out of 5 from 7 ratings, while AI Note Taker averages 4.8 from 548 ratings.

### Do SEMA3 or AI Note Taker have ads?

Neither SEMA3 nor AI Note Taker shows ads.

### Which is updated more often, SEMA3 or AI Note Taker?

SEMA3 ships an update every 2 months, and AI Note Taker monthly. Most recently, SEMA3 was updated on September 17, 2026 and AI Note Taker on September 30, 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.*