# Handy Contact Book vs Kortex Contacts

The clearest difference is in-app purchases: Handy Contact Book at none against Kortex Contacts's 3. Handy Contact Book also leads on update cadence (fortnightly vs every 2 months) and iOS requirement (9.0 vs 16.4). On price, ads and device support there is nothing between them.

Both are free to download. Kortex Contacts sells 3 in-app purchases, starting at $2.99 per month. Handy Contact Book asks for nothing beyond the download.

Handy Contact Book ships an update fortnightly, Kortex Contacts every 2 months. The most recent releases landed on November 2, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Handy Contact Book | Kortex Contacts |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/handy-contact-book/id1434227133/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 months |
| Monetization | Free | — |
| Size | 21 MB | 91 MB |
| Requires iOS | **9.0** | 16.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Kinh Tran](https://appshunter.io/developer/709170084) | [Gary Mizrachi](https://appshunter.io/developer/6785138701) |

## What reviewers say

### Handy Contact Book

[App page](https://appshunter.io/ios/app/handy-contact-book/id1434227133)

This free utility app helps you quickly convert all 11-digit Vietnamese mobile phone numbers in your contacts to 10-digit format. It's designed to assist users before the mandatory September 15th deadline.

**Highlights:** Convert 11-digit to 10-digit Vietnamese numbers, Batch phone number conversion, Free utility tool, Supports iPhone and iPod

**Features:** macOS Compatibility

**In-app purchases:** none


### Kortex Contacts

[App page](https://appshunter.io/ios/app/kortex-contacts/id6785138699)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kortex Pro Monthly | $2.99 | per month |
| Kortex Pro Yearly | $17.99 | per year |
| Kortex Premium Lifetime | $4.99 | one-time |


## Frequently asked questions

### Is Handy Contact Book free?

Handy Contact Book is free to download, with no in-app purchases.

### Is Kortex Contacts free?

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

### Do Handy Contact Book or Kortex Contacts have ads?

Neither Handy Contact Book nor Kortex Contacts shows ads.

### Which is updated more often, Handy Contact Book or Kortex Contacts?

Handy Contact Book ships an update fortnightly, and Kortex Contacts every 2 months. Most recently, Handy Contact Book was updated on November 2, 2026 and Kortex 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.*