# Cleanup Duplicate Contacts! vs Kernalite

The clearest difference is in-app purchases: Cleanup Duplicate Contacts! at none against Kernalite's 2. Kernalite's advantage is iOS requirement (15.1 vs 18.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Kernalite sells 2 in-app purchases, starting at $99.99 per month. Cleanup Duplicate Contacts! asks for nothing beyond the download.

Cleanup Duplicate Contacts! ships an update every 2 months, Kernalite every 5 weeks. The most recent releases landed on October 19, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Cleanup Duplicate Contacts! | Kernalite |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (8.5K ratings)](https://appshunter.io/ios/app/cleanup-duplicate-contacts/id513670485/reviews)** | — |
| Number of ratings | **8.5K** | — |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | Free | — |
| Size | 25 MB | 38 MB |
| Requires iOS | 18.6 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Business Contacts Solutions, LLC](https://appshunter.io/developer/675697151) | [Dunn-Carabali LLC](https://appshunter.io/developer/312739826) |

## What reviewers say

### Cleanup Duplicate Contacts!

[App page](https://appshunter.io/ios/app/cleanup-duplicate-contacts/id513670485)

This app automatically finds and merges duplicate contacts in your address book. It offers customizable matching levels and provides detailed reports. The app also suggests contact updates using AI and can capture new contacts from email signatures.

**Highlights:** Instant duplicate contact cleanup, Customizable merge levels, Automatic contact update suggestions, Email signature contact capture, Manages multiple contact sources, Backup and restore contacts

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🚀 Quick and efficient
- 👍 Easy to use
- 👍 Seamless operation
- 👍 Straightforward
- 👍 Effective

**What reviewers complain about**

- 🐛 Crashes
- 🐛 Deleted contacts
- 🐛 Unreliable
- 🐛 Didn't merge all duplicates
- 🔒 Privacy concerns about data sharing

**Reported bugs**

- Crashes during merging process
- Inconsistent behavior when re-merging contacts
- Deleting or losing contact information

**Requested features**

- Option to move contacts between groups
- Ability to select all backup contacts for deletion
- Improved backup and restore functionality


### Kernalite

[App page](https://appshunter.io/ios/app/kernalite/id6773775354)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $99.99 | per month |
| Yearly Subscription | $989.99 | per year |


## Frequently asked questions

### Is Cleanup Duplicate Contacts! free?

Cleanup Duplicate Contacts! is free to download, with no in-app purchases.

### Is Kernalite free?

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

### Do Cleanup Duplicate Contacts! or Kernalite have ads?

Neither Cleanup Duplicate Contacts! nor Kernalite shows ads.

### Which is updated more often, Cleanup Duplicate Contacts! or Kernalite?

Cleanup Duplicate Contacts! ships an update every 2 months, and Kernalite every 5 weeks. Most recently, Cleanup Duplicate Contacts! was updated on October 19, 2026 and Kernalite on October 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.*