# CardDAV Contacts vs CertTracker

The clearest difference is update cadence: CardDAV Contacts at every 5 days against CertTracker's fortnightly. CertTracker's advantage is iOS requirement (15.1 vs 18.6). 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.

CardDAV Contacts ships an update every 5 days, CertTracker fortnightly. The most recent releases landed on October 20, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | CardDAV Contacts | CertTracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/carddav-contacts/id6789400088/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 5 days** | Fortnightly |
| Monetization | Ad-supported | — |
| Size | 59 MB | 102 MB |
| Requires iOS | 18.6 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [一 王](https://appshunter.io/developer/477970384) | [Hasan Alhosani](https://appshunter.io/developer/6792347287) |

## What reviewers say

### CardDAV Contacts

[App page](https://appshunter.io/ios/app/carddav-contacts/id6789400088)

This utility app allows you to view contacts from any CardDAV-compatible server. It connects directly to your personal or self-hosted repositories, offering a private and read-only browsing experience with native search capabilities. Full contact details, including custom fields, are supported.

**Highlights:** Universal DAV Connection, Read-Only Access, Native Search & Browse, Full Field Support, Direct Server Connection, Private Browsing

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

**In-app purchases:** none


### CertTracker

[App page](https://appshunter.io/ios/app/certtracker-track-certificate/id6792347285)

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

**In-app purchases:** none


## Frequently asked questions

### Is CardDAV Contacts free?

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

### Is CertTracker free?

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

### Do CardDAV Contacts or CertTracker have ads?

Both CardDAV Contacts and CertTracker show ads.

### Which is updated more often, CardDAV Contacts or CertTracker?

CardDAV Contacts ships an update every 5 days, and CertTracker fortnightly. Most recently, CardDAV Contacts was updated on October 20, 2026 and CertTracker on October 9, 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.*