# Cold Watch vs Contacts Sync

The clearest difference is in-app purchases: Cold Watch at none against Contacts Sync's 3. Cold Watch also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.0). Contacts Sync's advantage is update cadence (every 6 weeks vs every 9 months). On price and device support there is nothing between them.

Both are free to download. Contacts Sync sells 3 in-app purchases, starting at $1.99 per 7 days. Cold Watch asks for nothing beyond the download.

Cold Watch ships an update every 9 months, Contacts Sync every 6 weeks. The most recent releases landed on October 8, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Cold Watch | Contacts Sync |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (20 ratings)](https://appshunter.io/ios/app/contacts-sync-for-google-gmail/id1644069886/reviews)** |
| Number of ratings | — | **20** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 9 months | **Every 6 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 25 MB | 92 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [I3 ZONE DEVELOPMENT (PTY) LTD](https://appshunter.io/developer/1104982340) | [Haresh Purbiya](https://appshunter.io/developer/1643672119) |

## What reviewers say

### Cold Watch

[App page](https://appshunter.io/ios/app/cold-watch/id1498034182)

**In-app purchases:** none


### Contacts Sync

[App page](https://appshunter.io/ios/app/contacts-sync-for-google-gmail/id1644069886)

Easily back up, export, and restore your phone's contacts without a computer. This app helps you find and merge duplicate entries, ensuring your address book stays organized and secure. Supports multiple export formats and cloud storage options.

**Highlights:** Contact backup to secure cloud storage, Export contacts in VCF, XLS, CSV formats, Find and merge duplicate contacts, Restore contacts from backup files, Automatic daily, weekly, monthly backups, Export backups via third-party apps

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Contact backup PRO - weekly | $1.99 | per 7 days |
| Contact backup PRO - Monthly | $4.99 | per month |
| Contact backup PRO - Yearly | $19.99 | per year |


## Frequently asked questions

### Is Cold Watch free?

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

### Is Contacts Sync free?

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

### Do Cold Watch or Contacts Sync have ads?

Contacts Sync shows ads; Cold Watch does not.

### Which is updated more often, Cold Watch or Contacts Sync?

Cold Watch ships an update every 9 months, and Contacts Sync every 6 weeks. Most recently, Cold Watch was updated on October 8, 2026 and Contacts Sync on October 13, 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.*