# I vs CardDAV Contacts

The clearest difference is ads: I at none against CardDAV Contacts's shown. I also leads on monetization model (free vs ad-supported) and iOS requirement (11.0 vs 18.6). CardDAV Contacts's advantage is update cadence (every 5 days vs fortnightly). On price, rating, ratings volume 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.

On the App Store both sit at effectively the same score — 5.0 for I against 5.0 for CardDAV Contacts. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

I ships an update fortnightly, CardDAV Contacts every 5 days. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | I | CardDAV Contacts |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/i-lien/id6447488888/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/carddav-contacts/id6789400088/reviews) |
| Number of ratings | **2** | 1 |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Every 5 days** |
| Monetization | **Free** | Ad-supported |
| Size | 35 MB | 59 MB |
| Requires iOS | **11.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [RAD InCorporated](https://appshunter.io/developer/1681491828) | [一 王](https://appshunter.io/developer/477970384) |

## What reviewers say

### I

[App page](https://appshunter.io/ios/app/i-lien/id6447488888)

Manage vehicle lien sales and related services on the go. This app streamlines the process of ordering new liens, tracking existing ones, and verifying proof of sale. Features a VIN scanner to quickly populate vehicle information.

**Highlights:** Order new liens, Manage existing liens, Answer tickets, Show proof of lien sale, VIN scanner/QR code reader, Auto-populate VIN fields

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is I free?

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

### Is CardDAV Contacts free?

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

### Which has better reviews, I or CardDAV Contacts?

I and CardDAV Contacts are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do I or CardDAV Contacts have ads?

CardDAV Contacts shows ads; I does not.

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

I ships an update fortnightly, and CardDAV Contacts every 5 days. Most recently, I was updated on November 3, 2026 and CardDAV Contacts on November 5, 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.*