# Duo.Link vs CA Assn of Code Enforcement

The clearest difference is update cadence: Duo.Link at every 10 days against CA Assn of Code Enforcement's every 4 months. Duo.Link also leads on iOS requirement (13 vs 15.1). 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.

Duo.Link ships an update every 10 days, CA Assn of Code Enforcement every 4 months. The most recent releases landed on October 27, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Duo.Link | CA Assn of Code Enforcement |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 4 months |
| Size | 42 MB | 48 MB |
| Requires iOS | **13** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Ali Javaid](https://appshunter.io/developer/1750635616) | [California Association of Code Enforcement Officers](https://appshunter.io/developer/1586064685) |

## What reviewers say

### Duo.Link

[App page](https://appshunter.io/ios/app/duolink/id6504041613)

**In-app purchases:** none


### CA Assn of Code Enforcement

[App page](https://appshunter.io/ios/app/ca-assn-of-code-enforcement/id6504953493)

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

**In-app purchases:** none


## Frequently asked questions

### Is Duo.Link free?

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

### Is CA Assn of Code Enforcement free?

CA Assn of Code Enforcement is free to download, with no in-app purchases.

### Do Duo.Link or CA Assn of Code Enforcement have ads?

Neither Duo.Link nor CA Assn of Code Enforcement shows ads.

### Which is updated more often, Duo.Link or CA Assn of Code Enforcement?

Duo.Link ships an update every 10 days, and CA Assn of Code Enforcement every 4 months. Most recently, Duo.Link was updated on October 27, 2026 and CA Assn of Code Enforcement on November 4, 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.*