# C vs Gemini Notebook

The clearest difference is review sentiment: Gemini Notebook at 78% against C's 27%. Gemini Notebook also leads on rating (4.9 vs 3.0) and update cadence (weekly vs every 8 months). C's advantage is in-app purchases (none vs 26) and iOS requirement (8.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Gemini Notebook sells 15 in-app purchases, starting at $1.99 per month. C asks for nothing beyond the download.

Gemini Notebook holds the better App Store score, 4.9 against 3.0. That said, the two scores are not equally well evidenced: Gemini Notebook has 64K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 27% of C's written reviews are positive against 78% of Gemini Notebook's.

C ships an update every 8 months, Gemini Notebook weekly. The most recent releases landed on October 25, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | C | Gemini Notebook |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/c-assist/id906611059/reviews) | **[4.9 (64K ratings)](https://appshunter.io/ios/app/gemini-notebook/id6737527615/reviews)** |
| Number of ratings | 2 | **64K** |
| Positive reviews | 27.3% of reviews | **77.8% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Best chart rank | — | **#43** |
| Size | 26 MB | 208 MB |
| Requires iOS | **8.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [CASIO COMPUTER CO., LTD.](https://appshunter.io/developer/456569836) | [Google LLC](https://appshunter.io/developer/281956209) |

## What reviewers say

### C

[App page](https://appshunter.io/ios/app/c-assist/id906611059)

Connect your iOS device to a CASIO projector to wirelessly display documents, images, live camera feeds, and web pages. It also allows for remote control of a connected computer for enhanced presentations.

**Highlights:** Wireless projection of documents and images, Live camera feed projection, Web page projection, Remote computer control, Supports Word, Excel, PowerPoint, PDF, JPEG, PNG, BMP

**Features:** Vision Pro support

**In-app purchases:** none


### Gemini Notebook

[App page](https://appshunter.io/ios/app/gemini-notebook/id6737527615)

**Currently charting:** #43 Top Free · Productivity, #138 Top Grossing · Productivity (US App Store)

This AI-powered tool transforms complex information from various sources into clear, understandable insights. It allows users to upload documents, websites, and videos, then ask questions and receive summarized answers with inline citations. Users can also generate podcast-style audio discussions for a different learning experience.

**Highlights:** Upload PDFs, websites, and videos, AI-powered summarization, Ask questions about sources, Inline source citations, Podcast-style audio overviews, Offline access

**In-app purchases (15)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100 GB | $1.99 | per month |
| 200 GB | $2.99 | per month |
| Google AI Plus (400 GB) | $4.99 | per month |
| Google AI Plus (400 GB) | $4.99 | per month |
| Google AI Plus (2 TB) | $9.99 | per month |
| Google AI Pro (5 TB) | $19.99 | per month |
| Google AI Pro (5 TB) | $19.99 | per month |
| 100 GB | $19.99 | per year |
| 5 TB | $24.99 | per month |
| 200 GB | $29.99 | per year |
| Google AI Plus (400 GB) | $49.99 | per year |
| 10 TB | $49.99 | per month |
| Google AI Pro (5 TB) | $199.99 | per year |
| Google AI Pro (2 TB) | $199.99 | per year |
| Google AI Ultra (30 TB) | $249.99 | per month |

**What reviewers like**

- 🚀 Fast and accurate audio summaries
- 👍 Useful for learning and studying
- 🚀 Convenient mobile access
- 👍 Great for on-the-go use

**What reviewers complain about**

- 🐛 Audio volume issues
- 🔍 Missing key features from web version
- 🔍 Lack of customization options
- 🔍 Inconsistent dark mode implementation

**Reported bugs**

- Audio coming through earpiece instead of speaker
- Interactive features not working properly

**Requested features**

- Ability to curate audio summaries
- Sync saved notes from web version
- Add mind maps, study guides, and other advanced features


## Frequently asked questions

### Is C free?

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

### Is Gemini Notebook free?

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

### Which has better reviews, C or Gemini Notebook?

Gemini Notebook is rated higher. C averages 3.0 out of 5 from 2 ratings, while Gemini Notebook averages 4.9 from 64K ratings.

### Do C or Gemini Notebook have ads?

Neither C nor Gemini Notebook shows ads.

### Which is updated more often, C or Gemini Notebook?

C ships an update every 8 months, and Gemini Notebook weekly. Most recently, C was updated on October 25, 2026 and Gemini Notebook on November 1, 2026.

---

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