# Thinfinity vs Sky.739

The clearest difference is in-app purchases: Thinfinity at none against Sky.739's 2. Thinfinity also leads on iOS requirement (13.0 vs 15.0). Sky.739's advantage is update cadence (every 2 weeks vs every 7 months). On price, ads and device support there is nothing between them.

Both are free to download. Sky.739 sells 2 in-app purchases, starting at $5.49 per month. Thinfinity asks for nothing beyond the download.

Thinfinity ships an update every 7 months, Sky.739 every 2 weeks. The most recent releases landed on September 12, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Thinfinity | Sky.739 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 2 weeks** |
| Size | 26 MB | 149 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Cybele Software, Inc.](https://appshunter.io/developer/1083201139) | [SKYNETFLOW.COM LLC](https://appshunter.io/developer/1613331317) |

## What reviewers say

### Thinfinity

[App page](https://appshunter.io/ios/app/thinfinity/id1529672695)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sky.739

[App page](https://appshunter.io/ios/app/sky739/id1613331315)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sky.739 Full Access. 1-Month | $5.49 | per month |
| Sky.739 Full Access. 1-Year | $24.49 | per year |


## Frequently asked questions

### Is Thinfinity free?

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

### Is Sky.739 free?

Sky.739 is free to download, with in-app purchases available.

### Do Thinfinity or Sky.739 have ads?

Neither Thinfinity nor Sky.739 shows ads.

### Which is updated more often, Thinfinity or Sky.739?

Thinfinity ships an update every 7 months, and Sky.739 every 2 weeks. Most recently, Thinfinity was updated on September 12, 2026 and Sky.739 on September 20, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*