# Sync vs Sidera

The clearest difference is rating: Sidera at 4.9 against Sync's 4.2. Sidera also leads on monetization model (free with in-app purchases vs subscription) and ads (none vs shown). On price, ratings volume, in-app purchases and device support there is nothing between them.

Both are free to download. Sync sells 5 in-app purchases, starting at $4.99 per 7 days and Sidera sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Sidera holds the better App Store score, 4.9 against 4.2. Both are backed by a comparable volume of ratings — 21 and 10 respectively.

Sync ships an update every 2 weeks, Sidera weekly. The most recent releases landed on October 24, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Sync | Sidera |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (21 ratings)](https://appshunter.io/ios/app/sync-relationship-astrology/id6757603357/reviews) | **[4.9 (10 ratings)](https://appshunter.io/ios/app/sidera-guidance/id6762301629/reviews)** |
| Number of ratings | **21** | 10 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | Subscription | **Free with in-app purchases** |
| Size | 176 MB | 81 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 17+ |
| Developer | [Adapt Apps](https://appshunter.io/developer/1718118053) | [Sidera LLC](https://appshunter.io/developer/1893721198) |

## What reviewers say

### Sync

[App page](https://appshunter.io/ios/app/sync-relationship-astrology/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 |


### Sidera

[App page](https://appshunter.io/ios/app/sidera-guidance/id6762301629)

This lifestyle app connects you with experts for practical guidance on everyday decisions. Move from overthinking to action by defining priorities, creating action plans, and preparing for important conversations. Build better habits and track your progress in one place for personal growth.

**Highlights:** Chat with life and love advisors, Define priorities and action plans, Prepare for important conversations, Build better habits, Track sessions and progress

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Welcome Offer: Credits | $2.99 | one-time |
| Welcome Offer: Credits | $3.99 | one-time |
| Starter Offer: Credits | $7.99 | one-time |
| Basic Credits Package | $11.99 | one-time |
| Bronze Credits | $19.99 | one-time |
| Silver Credits | $49.99 | one-time |
| Gold Credits | $99.99 | one-time |
| Platinum Credits | $149.99 | one-time |
| Diamond Credits | $199.99 | one-time |
| Cosmic Credits | $249.99 | one-time |


## Frequently asked questions

### Is Sync free?

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

### Is Sidera free?

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

### Which has better reviews, Sync or Sidera?

Sidera is rated higher. Sync averages 4.2 out of 5 from 21 ratings, while Sidera averages 4.9 from 10 ratings.

### Do Sync or Sidera have ads?

Sync shows ads; Sidera does not.

### Which is updated more often, Sync or Sidera?

Sync ships an update every 2 weeks, and Sidera weekly. Most recently, Sync was updated on October 24, 2026 and Sidera on October 31, 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.*