# iSmart Light vs Sync

The clearest difference is in-app purchases: iSmart Light at none against Sync's 5. iSmart Light also leads on device support (3 vs 1) and iOS requirement (11.0 vs 16.4). Sync's advantage is update cadence (every 3 weeks vs every 2 months). On price and ads there is nothing between them.

Both are free to download. Sync sells 5 in-app purchases, starting at $4.99 per 7 days. iSmart Light asks for nothing beyond the download.

iSmart Light ships an update every 2 months, Sync every 3 weeks. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | iSmart Light | Sync |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.2 (21 ratings)](https://appshunter.io/ios/app/sync-your-love-guide/id6757603357/reviews)** |
| Number of ratings | — | **21** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | — | Subscription |
| Size | 217 MB | 109 MB |
| Requires iOS | **11.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | +4 |
| Developer | [Shenzhen Topband Software Technology Co., Ltd](https://appshunter.io/developer/1577897057) | [Adapt Apps](https://appshunter.io/developer/1718118053) |

## What reviewers say

### iSmart Light

[App page](https://appshunter.io/ios/app/ismart-light/id1577897055)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sync

[App page](https://appshunter.io/ios/app/sync-your-love-guide/id6757603357)

This app generates daily relationship insights by comparing birth charts. It offers interpretations on attraction, communication, and tension to encourage thoughtful reflection on interactions. It's designed as a tool for personal awareness and relationship understanding.

**Highlights:** Daily relationship syncs, Birth chart comparison, Relationship indicator scores, Personalized guidance, Attraction, attachment, communication insights, Reflection on interactions

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FREE TRIAL | $4.99 | per 7 days |
| FREE TRIAL | $6.99 | per 7 days |
| Annual with a 3-day free trial | $19.99 | per year |
| Annual with a 3-day free trial | $29.99 | per year |
| Annual with a 3-day free trial | $39.99 | per year |


## Frequently asked questions

### Is iSmart Light free?

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

### Is Sync free?

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

### Do iSmart Light or Sync have ads?

Neither iSmart Light nor Sync shows ads.

### Which is updated more often, iSmart Light or Sync?

iSmart Light ships an update every 2 months, and Sync every 3 weeks. Most recently, iSmart Light was updated on November 3, 2026 and Sync 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.*