# Smell Annotator vs Vendora

The clearest difference is rating: Vendora at 5.0 against Smell Annotator's 1.0. Vendora also leads on ratings volume (5 vs 1). Smell Annotator's advantage is monetization model (free vs ad-supported). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Vendora holds the better App Store score, 5.0 against 1.0. That said, the two scores are not equally well evidenced: Vendora has 5 ratings behind it against 1, so its average is the more settled of the two.

Smell Annotator ships an update monthly, Vendora every 5 weeks. The most recent releases landed on October 27, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Smell Annotator | Vendora |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/smell-annotator/id1607528175/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/vendora/id6449545398/reviews)** |
| Number of ratings | 1 | **5** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 weeks |
| Monetization | **Free** | Ad-supported |
| Size | 53 MB | 48 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SmartNanotubes Technologies](https://appshunter.io/developer/1607528177) | [Jaldi](https://appshunter.io/developer/1649595968) |

## What reviewers say

### 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


### Vendora

[App page](https://appshunter.io/ios/app/vendora/id6449545398)

Manage your online business presence directly from your mobile device. Track and update product details, and soon, manage orders, inventory, and employee access. Streamline your e-commerce operations on the go.

**Highlights:** Track products, Update product images, Update product information, Manage orders, Manage inventory, Manage employee access

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Smell Annotator free?

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

### Is Vendora free?

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

### Which has better reviews, Smell Annotator or Vendora?

Vendora is rated higher. Smell Annotator averages 1.0 out of 5 from 1 ratings, while Vendora averages 5.0 from 5 ratings.

### Do Smell Annotator or Vendora have ads?

Neither Smell Annotator nor Vendora shows ads.

### Which is updated more often, Smell Annotator or Vendora?

Smell Annotator ships an update monthly, and Vendora every 5 weeks. Most recently, Smell Annotator was updated on October 27, 2026 and Vendora on November 3, 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.*