# Sirio2 vs Contact Transfer

The clearest difference is in-app purchases: Sirio2 at none against Contact Transfer's 2. Sirio2 also leads on iOS requirement (12.4 vs 15.3). Contact Transfer's advantage is update cadence (every 2 weeks vs every 16 months). On price, ads and device support there is nothing between them.

Both are free to download. Contact Transfer sells 2 in-app purchases, starting at $2.99 per month. Sirio2 asks for nothing beyond the download.

Sirio2 ships an update every 16 months, Contact Transfer every 2 weeks. The most recent releases landed on November 11, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Sirio2 | Contact Transfer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (3 ratings)](https://appshunter.io/ios/app/contact-transfer-smart-backup/id6467032780/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 16 months | **Every 2 weeks** |
| Monetization | — | Freemium |
| Size | 106 MB | 33 MB |
| Requires iOS | **12.4** | 15.3 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NewPhone GmbH](https://appshunter.io/developer/1003721659) | [EVREN AY](https://appshunter.io/developer/1783739284) |

## What reviewers say

### Sirio2

[App page](https://appshunter.io/ios/app/sirio2/id1003721660)

**Features:** macOS Compatibility

**In-app purchases:** none


### Contact Transfer

[App page](https://appshunter.io/ios/app/contact-transfer-smart-backup/id6467032780)

Safeguard your valuable connections with this comprehensive contact management tool. It offers secure local and cloud backup options, smart scheduling for automatic backups, and flexible tools for organizing, sharing, and restoring your contacts.

**Highlights:** Secure local and cloud backup, Automatic backup scheduling, Selective contact backup, Contact sharing, Easy contact restore, Import and export contacts, Manage multiple backup versions

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $2.99 | per month |
| Lifetime Access | $4.99 | one-time |


## Frequently asked questions

### Is Sirio2 free?

Sirio2 is free to download, with no in-app purchases.

### Is Contact Transfer free?

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

### Do Sirio2 or Contact Transfer have ads?

Neither Sirio2 nor Contact Transfer shows ads.

### Which is updated more often, Sirio2 or Contact Transfer?

Sirio2 ships an update every 16 months, and Contact Transfer every 2 weeks. Most recently, Sirio2 was updated on November 11, 2026 and Contact Transfer on November 3, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*