# Contacts Sync vs SMS Solar

The clearest difference is in-app purchases: SMS Solar at none against Contacts Sync's 7. SMS Solar also leads on iOS requirement (15.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

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

Contacts Sync ships an update every 5 days, SMS Solar every 9 days. The most recent releases landed on November 1, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Contacts Sync | SMS Solar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (15K ratings)](https://appshunter.io/ios/app/contacts-sync-google-and-more/id454390333/reviews)** | — |
| Number of ratings | **15K** | — |
| Positive reviews | 79.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 9 days |
| Monetization | Free with in-app purchases | — |
| Size | 40 MB | 32 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Playa Apps](https://appshunter.io/developer/449814913) | [Bhavik Vala](https://appshunter.io/developer/1722903213) |

## What reviewers say

### Contacts Sync

[App page](https://appshunter.io/ios/app/contacts-sync-google-and-more/id454390333)

Effortlessly synchronize your contacts across Google, Outlook, and iPhone. This reliable app ensures your contact information is up-to-date everywhere with 2-way syncing and support for all contact fields and photos.

**Highlights:** 2-way contact synchronization, Sync Google, Outlook, and iPhone accounts, Syncs all contact fields and photos, Automatic background syncing, Group and custom label synchronization, Duplicate contact elimination

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (1 Week) | $1.99 | per 7 days |
| Premium (1 Month) | $2.99 | per month |
| Premium (1 Year) | $9.99 | per year |
| Automatic Contact Syncing | Free | one-time |
| Make Contribution | $4.99 | one-time |
| Make Larger Contribution | $9.99 | one-time |
| Premium (Lifetime Access) | $11.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🚀 Quick and efficient
- 💡 Useful for syncing contacts across devices
- 🔒 Reliable and secure
- 🙌 Great customer support

**What reviewers complain about**

- 🐛 Occasional sync issues
- 💰 Paid subscription required for more than 40 contacts
- 🔄 Confusion around syncing and merging contacts
- 🤔 Inconsistent contact formatting after sync

**Reported bugs**

- Deleted contacts reappearing after sync
- Sync corrupting or deleting existing contact data

**Requested features**

- Ability to merge duplicate contacts
- Sync support for Outlook contacts
- Automatic sync between multiple Google accounts
- Undo/rollback option for sync operations


### SMS Solar

[App page](https://appshunter.io/ios/app/sms-solar/id6788998220)

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

**In-app purchases:** none


## Frequently asked questions

### Is Contacts Sync free?

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

### Is SMS Solar free?

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

### Do Contacts Sync or SMS Solar have ads?

Neither Contacts Sync nor SMS Solar shows ads.

### Which is updated more often, Contacts Sync or SMS Solar?

Contacts Sync ships an update every 5 days, and SMS Solar every 9 days. Most recently, Contacts Sync was updated on November 1, 2026 and SMS Solar on October 28, 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.*