# Citeck ECOS vs Avilon DOCS

The clearest difference is update cadence: Avilon DOCS at weekly against Citeck ECOS's every 13 months. Citeck ECOS's advantage is iOS requirement (12.4 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Citeck ECOS ships an update every 13 months, Avilon DOCS weekly. The most recent releases landed on September 24, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Citeck ECOS | Avilon DOCS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Weekly** |
| Size | 10 MB | 163 MB |
| Requires iOS | **12.4** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Citeck LLC](https://appshunter.io/developer/1473148859) | [Acommerce LLC](https://appshunter.io/developer/640464865) |

## What reviewers say

### Citeck ECOS

[App page](https://appshunter.io/ios/app/citeck-ecos/id1473148860)

**Features:** macOS Compatibility

**In-app purchases:** none


### Avilon DOCS

[App page](https://appshunter.io/ios/app/avilon-docs/id1606178464)

**In-app purchases:** none


## Frequently asked questions

### Is Citeck ECOS free?

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

### Is Avilon DOCS free?

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

### Do Citeck ECOS or Avilon DOCS have ads?

Neither Citeck ECOS nor Avilon DOCS shows ads.

### Which is updated more often, Citeck ECOS or Avilon DOCS?

Citeck ECOS ships an update every 13 months, and Avilon DOCS weekly. Most recently, Citeck ECOS was updated on September 24, 2026 and Avilon DOCS on September 21, 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.*