# Spiral Journey vs SunSync

The clearest difference is in-app purchases: Spiral Journey at none against SunSync's 2. Spiral Journey also leads on device support (3 vs 1). On price, update cadence, ads and iOS requirement there is nothing between them.

Both are free to download. SunSync sells 2 in-app purchases, starting at $1.99 per year. Spiral Journey asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on November 9, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Spiral Journey | SunSync |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Size | 25 MB | 25 MB |
| Requires iOS | **17.0** | 17.6 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Carlos Perea](https://appshunter.io/developer/1884473372) | [Marta Rodriguez](https://appshunter.io/developer/1873973295) |

## What reviewers say

### Spiral Journey

[App page](https://appshunter.io/ios/app/spiral-journey/id6760436577)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### SunSync

[App page](https://appshunter.io/ios/app/sunsync-circadian-tracker/id6762293528)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Year | $1.99 | per year |
| Lifetime | $2.99 | one-time |


## Frequently asked questions

### Is Spiral Journey free?

Spiral Journey is free to download, with no in-app purchases.

### Is SunSync free?

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

### Do Spiral Journey or SunSync have ads?

Neither Spiral Journey nor SunSync shows ads.

### Which is updated more often, Spiral Journey or SunSync?

Spiral Journey ships an update every 3 weeks, and SunSync every 3 weeks. Most recently, Spiral Journey was updated on November 9, 2026 and SunSync on November 5, 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.*