# Thinking wisely vs Red sky

The clearest difference is in-app purchases: Red sky at none against Thinking wisely's 1. Red sky also leads on update cadence (every 3 days vs every 10 days). Thinking wisely's advantage is ads (none vs shown) and iOS requirement (13.6 vs 17.6). On price and device support there is nothing between them.

Both are free to download. Thinking wisely sells 1 one-off in-app purchase. Red sky asks for nothing beyond the download.

Thinking wisely ships an update every 10 days, Red sky every 3 days. The most recent releases landed on September 29, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Thinking wisely | Red sky |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 10 days | **Every 3 days** |
| Size | 185 MB | 19 MB |
| Requires iOS | **13.6** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Man Hung Sun](https://appshunter.io/developer/1471605573) | [Petr Homola](https://appshunter.io/developer/286231977) |

## What reviewers say

### Thinking wisely

[App page](https://appshunter.io/ios/app/thinking-wisely/id1578143788)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| upgrade | $0.99 | one-time |


### Red sky

[App page](https://appshunter.io/ios/app/red-sky/id6753095228)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Thinking wisely free?

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

### Is Red sky free?

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

### Do Thinking wisely or Red sky have ads?

Red sky shows ads; Thinking wisely does not.

### Which is updated more often, Thinking wisely or Red sky?

Thinking wisely ships an update every 10 days, and Red sky every 3 days. Most recently, Thinking wisely was updated on September 29, 2026 and Red sky on October 10, 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.*