# Contacts Transfer & Backup Pro vs 1Stack Stellar

The clearest difference is ads: 1Stack Stellar at none against Contacts Transfer & Backup Pro's shown. 1Stack Stellar also leads on iOS requirement (13.0 vs 15.0). Contacts Transfer & Backup Pro's advantage is update cadence (monthly vs every 2 months). On price, 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.

Contacts Transfer & Backup Pro ships an update monthly, 1Stack Stellar every 2 months. The most recent releases landed on October 13, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Contacts Transfer & Backup Pro | 1Stack Stellar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (476 ratings)](https://appshunter.io/ios/app/contacts-transfer-and-backup-pro/id1589611375/reviews)** | — |
| Number of ratings | **476** | — |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 8 MB | 55 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [DUSKBAY LLC](https://appshunter.io/developer/1649071166) | [CoreTech s.r.l.](https://appshunter.io/developer/1146811110) |

## What reviewers say

### Contacts Transfer & Backup Pro

[App page](https://appshunter.io/ios/app/contacts-transfer-and-backup-pro/id1589611375)

Easily manage and transfer your contacts with one-click sharing and automatic backups. Securely store your data in iCloud for access across all your devices.  Enjoy a user-friendly and reliable contact management experience.

**Highlights:** One-click contact transfer, Automatic contact backups, iCloud integration, User-friendly interface, Cross-platform accessibility

**In-app purchases:** none


### 1Stack Stellar

[App page](https://appshunter.io/ios/app/1stack-stellar/id6760779216)

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

**In-app purchases:** none


## Frequently asked questions

### Is Contacts Transfer & Backup Pro free?

Contacts Transfer & Backup Pro is free to download, with no in-app purchases.

### Is 1Stack Stellar free?

1Stack Stellar is free to download, with no in-app purchases.

### Do Contacts Transfer & Backup Pro or 1Stack Stellar have ads?

Contacts Transfer & Backup Pro shows ads; 1Stack Stellar does not.

### Which is updated more often, Contacts Transfer & Backup Pro or 1Stack Stellar?

Contacts Transfer & Backup Pro ships an update monthly, and 1Stack Stellar every 2 months. Most recently, Contacts Transfer & Backup Pro was updated on October 13, 2026 and 1Stack Stellar on October 10, 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.*