# IID pro vs Contacts backup `

The clearest difference is in-app purchases: IID pro at none against Contacts backup `'s 4. IID pro also leads on device support (3 vs 1) and iOS requirement (8.0 vs 17.6). Contacts backup `'s advantage is update cadence (every 3 weeks vs every 38 months). On price and ads there is nothing between them.

Both are free to download. Contacts backup ` sells 4 in-app purchases, starting at $0.99 per 7 days. IID pro asks for nothing beyond the download.

IID pro ships an update every 38 months, Contacts backup ` every 3 weeks. The most recent releases landed on November 7, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | IID pro | Contacts backup ` |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (53 ratings)](https://appshunter.io/ios/app/contacts-backup/id6748363507/reviews)** |
| Number of ratings | — | **53** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 38 months | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 111 MB | 11 MB |
| Requires iOS | **8.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Kariman Raouf](https://appshunter.io/developer/1584654639) | [ENGINES STUDIO LAB](https://appshunter.io/developer/1686902830) |

## What reviewers say

### IID pro

[App page](https://appshunter.io/ios/app/iid-pro/id1584654637)

**Features:** macOS Compatibility

**In-app purchases:** none


### Contacts backup `

[App page](https://appshunter.io/ios/app/contacts-backup/id6748363507)

Safeguard your address book with this straightforward utility. Easily back up, restore, and transfer contacts in various formats, even offline. Schedule regular backups and organize them by date for peace of mind.

**Highlights:** One-tap contact backup, Restore from previous backups, Export in VCF or CSV, Share backups easily, Smart backup reminders, Organize backups by date, Offline functionality

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full access for 1 week | $0.99 | per 7 days |
| Full access for 1 month | $3.99 | per month |
| Full access for 1 year | $19.99 | per year |
| Lifetime access | $24.99 | one-time |


## Frequently asked questions

### Is IID pro free?

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

### Is Contacts backup ` free?

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

### Do IID pro or Contacts backup ` have ads?

Neither IID pro nor Contacts backup ` shows ads.

### Which is updated more often, IID pro or Contacts backup `?

IID pro ships an update every 38 months, and Contacts backup ` every 3 weeks. Most recently, IID pro was updated on November 7, 2026 and Contacts backup ` on November 8, 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.*