# Backup Contacts Cleaner vs Smart Flow

The clearest difference is in-app purchases: Smart Flow at none against Backup Contacts Cleaner's 1. Smart Flow also leads on ads (none vs shown) and update cadence (daily vs every 3 months). On price and device support there is nothing between them.

Both are free to download. Backup Contacts Cleaner sells 1 one-off in-app purchase. Smart Flow asks for nothing beyond the download.

Backup Contacts Cleaner ships an update every 3 months, Smart Flow daily. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Backup Contacts Cleaner | Smart Flow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (519 ratings)](https://appshunter.io/ios/app/backup-contacts-cleaner/id1234917118/reviews)** | — |
| Number of ratings | **519** | — |
| Positive reviews | 70.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 48 MB | 42 MB |
| Requires iOS | 14.0 | **9.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Duong Bac](https://appshunter.io/developer/1090685560) | [PubLink science and technology (Hangzhou) Co.,Ltd](https://appshunter.io/developer/1531249187) |

## What reviewers say

### Backup Contacts Cleaner

[App page](https://appshunter.io/ios/app/backup-contacts-cleaner/id1234917118)

Safely back up, restore, and transfer all your phone contacts with a single tap. This secure and fast application ensures your contacts are saved even if your device is lost or broken. Easily manage your address book and keep your important information protected.

**Highlights:** Safe & secure contact backup, One-tap contact transfer, Manual sync option, Small in-app size, Easy contact saving

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |

**What reviewers like**

- 👍 Easy to use and understand
- 🚀 Fast and efficient backup
- ✅ Works well for contact backup
- ✨ Solves iCloud sync issues
- 💰 Free and supports developers

**What reviewers complain about**

- 🐛 App crashes frequently
- 🐛 Merging contacts causes crashes
- 🐛 Data loss after merging
- 🐛 Contacts merged incorrectly
- 🐛 Wiped out addresses and notes

**Reported bugs**

- App crashes when merging contacts
- Contacts are lost or deleted
- Addresses and notes are wiped out
- Backup files cannot be sent to email or dropbox
- App makes duplicate contacts

**Requested features**

- Support for more languages
- Fix CSV import issues with line endings
- Improve export functionality to email/dropbox
- Better handling of contact merging
- Fix the issue with sending only a few contacts


### Smart Flow

[App page](https://appshunter.io/ios/app/smart-flow/id1562802451)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Backup Contacts Cleaner free?

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

### Is Smart Flow free?

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

### Do Backup Contacts Cleaner or Smart Flow have ads?

Backup Contacts Cleaner shows ads; Smart Flow does not.

### Which is updated more often, Backup Contacts Cleaner or Smart Flow?

Backup Contacts Cleaner ships an update every 3 months, and Smart Flow daily. Most recently, Backup Contacts Cleaner was updated on November 6, 2026 and Smart Flow on November 7, 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.*