# GreenTech App vs Canton Fair (CIEF)

The clearest difference is ads: GreenTech App at none against Canton Fair (CIEF)'s shown. Canton Fair (CIEF)'s advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, update cadence 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.

GreenTech App ships an update monthly, Canton Fair (CIEF) every 3 weeks. The most recent releases landed on October 27, 2026 and November 12, 2026 respectively.

## The numbers

| Metric | GreenTech App | Canton Fair (CIEF) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (14 ratings)](https://appshunter.io/ios/app/canton-fair-cief/id6479602933/reviews)** |
| Number of ratings | — | **14** |
| Positive reviews | — | 83.3% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | — | Ad-supported |
| Size | 58 MB | 118 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [RAI Amsterdam B.V.](https://appshunter.io/developer/1444409331) | [CHINA FOREIGN TRADE CENTRE GROUP, Ltd.](https://appshunter.io/developer/619629859) |

## What reviewers say

### GreenTech App

[App page](https://appshunter.io/ios/app/greentech-app/id1586113128)

**Features:** macOS Compatibility

**In-app purchases:** none


### Canton Fair (CIEF)

[App page](https://appshunter.io/ios/app/canton-fair-cief/id6479602933)

Discover exhibitors and products across numerous categories with AI-powered search. Navigate the exhibition with booth-level precision, plan your itinerary, and connect with potential buyers and suppliers. Facilitate cross-border communication with instant messaging and AI translation.

**Highlights:** Exhibitor and product search, Booth-level navigation, Itinerary planning, Trade matching services, Instant messaging with AI translation, Omnimedia exhibition content

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

**In-app purchases:** none


## Frequently asked questions

### Is GreenTech App free?

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

### Is Canton Fair (CIEF) free?

Canton Fair (CIEF) is free to download, with no in-app purchases.

### Do GreenTech App or Canton Fair (CIEF) have ads?

Canton Fair (CIEF) shows ads; GreenTech App does not.

### Which is updated more often, GreenTech App or Canton Fair (CIEF)?

GreenTech App ships an update monthly, and Canton Fair (CIEF) every 3 weeks. Most recently, GreenTech App was updated on October 27, 2026 and Canton Fair (CIEF) on November 12, 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.*