# CNCERT vs Fax App

The clearest difference is in-app purchases: CNCERT at none against Fax App's 4. CNCERT also leads on update cadence (every 2 days vs every 7 months) and iOS requirement (11.0 vs 16.0). On price, ads and device support there is nothing between them.

Both are free to download. Fax App sells 4 in-app purchases, starting at $3.99 per 7 days. CNCERT asks for nothing beyond the download.

CNCERT ships an update every 2 days, Fax App every 7 months. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | CNCERT | Fax App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (7 ratings)](https://appshunter.io/ios/app/fax-app-send-from-iphone/id1621699185/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 7 months |
| Monetization | — | Free with in-app purchases |
| Size | 19 MB | 23 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [CNCITY energy Co., LTD.](https://appshunter.io/developer/1201662678) | [Uliana Petukhova](https://appshunter.io/developer/1600919576) |

## What reviewers say

### CNCERT

[App page](https://appshunter.io/ios/app/cncert/id1496098399)

**Features:** macOS Compatibility

**In-app purchases:** none


### Fax App

[App page](https://appshunter.io/ios/app/fax-app-send-from-iphone/id1621699185)

Easily send faxes directly from your iPhone. Scan documents with your camera, import from cloud storage or your photo library, and edit before sending. Sign documents digitally without printing.

**Highlights:** Scan documents with camera, Import from cloud storage, Edit and preview faxes, Add cover pages, Digital signatures, Combine multiple files

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FAX Premium | $3.99 | per 7 days |
| FAX Premium | $6.99 | per 7 days |
| FAX Premium | $49.99 | per year |
| FAX Premium | $2.99 | one-time |


## Frequently asked questions

### Is CNCERT free?

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

### Is Fax App free?

Fax App is free to download, with in-app purchases available.

### Do CNCERT or Fax App have ads?

Neither CNCERT nor Fax App shows ads.

### Which is updated more often, CNCERT or Fax App?

CNCERT ships an update every 2 days, and Fax App every 7 months. Most recently, CNCERT was updated on October 25, 2026 and Fax App on October 24, 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.*