# Canny Cam vs Smell Annotator

The clearest difference is rating: Canny Cam at 2.5 against Smell Annotator's 1.0. Canny Cam also leads on ratings volume (48 vs 1) and update cadence (every 2 weeks vs monthly). Smell Annotator's advantage is in-app purchases (none vs 20). On price, ads and device support there is nothing between them.

Both are free to download. Canny Cam sells 20 in-app purchases, starting at $2.99 per month. Smell Annotator asks for nothing beyond the download.

Canny Cam holds the better App Store score, 2.5 against 1.0. That said, the two scores are not equally well evidenced: Canny Cam has 48 ratings behind it against 1, so its average is the more settled of the two.

Canny Cam ships an update every 2 weeks, Smell Annotator monthly. The most recent releases landed on September 22, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Canny Cam | Smell Annotator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.5 (48 ratings)](https://appshunter.io/ios/app/canny-cam/id1533623272/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/smell-annotator/id1607528175/reviews) |
| Number of ratings | **48** | 1 |
| Positive reviews | 20.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Monthly |
| Monetization | Subscription | **Free** |
| Size | 178 MB | 53 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [辉 陈](https://appshunter.io/developer/1622748838) | [SmartNanotubes Technologies](https://appshunter.io/developer/1607528177) |

## What reviewers say

### Canny Cam

[App page](https://appshunter.io/ios/app/canny-cam/id1533623272)

Monitor your home, office, or shop remotely with real-time video surveillance. Receive instant alerts for abnormal activity and access video history. Control camera direction and communicate via intercom.

**Highlights:** Real-time video surveillance, HD video viewing, Remote PTZ control, Intelligent video recording, Real-time notification and playback, Real-time intercom, Alarm and information push

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

**In-app purchases (20)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1cam 7 days loop recordMonthy | $2.99 | per month |
| 1cam 15days loop recordMonthy | $2.99 | per month |
| Basic Member(1 device) | $3.99 | per month |
| 2cams 7days loop recordMonthy | $4.99 | per month |
| Standard Member (1 device) | $4.99 | per month |
| 1cam 30days loop recordMonthy. | $6.99 | per month |
| 4cams 7days loop recordMonthy | $8.99 | per month |
| 10c 30days loop record Monthy. | $9.99 | per month |
| Standard Member (4 devices) | $9.99 | per month |
| 2cams 30day loop recordMonthy. | $11.99 | per month |
| 8cams 7days loop recordMonthy | $14.99 | per month |
| Standard Member (1 device) REC | $14.99 | per month |
| 20c 60days loop recordMonthy | $19.99 | per month |
| Premium Member (20 devices) | $19.99 | per month |
| 4cams 30day loop recordMonthy. | $20.99 | per month |
| 1cams 30day CVR loop record. | $24.99 | per month |
| 8cams 30day loop recordMonthy | $34.99 | per month |
| Basic Member(1 device) Yearly | $39.99 | per year |
| Standard Member (1 device) Yearly | $49.99 | per year |
| Standard Member (4 devices) Yearly | $99.99 | per year |


### Smell Annotator

[App page](https://appshunter.io/ios/app/smell-annotator/id1607528175)

This application enables machines to digitally sense and analyze smells using nanomaterial-based technology. It allows users to view, annotate, and recognize smell measurements in real-time, functioning as part of a developer kit.

**Highlights:** Smell recognition, Smell digitalization and annotation, Saving and loading measurements, Real-time measurement visualization, Offline data collection, Graph synchronization

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Canny Cam free?

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

### Is Smell Annotator free?

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

### Which has better reviews, Canny Cam or Smell Annotator?

Canny Cam is rated higher. Canny Cam averages 2.5 out of 5 from 48 ratings, while Smell Annotator averages 1.0 from 1 ratings.

### Do Canny Cam or Smell Annotator have ads?

Neither Canny Cam nor Smell Annotator shows ads.

### Which is updated more often, Canny Cam or Smell Annotator?

Canny Cam ships an update every 2 weeks, and Smell Annotator monthly. Most recently, Canny Cam was updated on September 22, 2026 and Smell Annotator on September 14, 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.*