# Complicated problem solving vs DeFind

The clearest difference is in-app purchases: Complicated problem solving at none against DeFind's 2. Complicated problem solving also leads on update cadence (every 9 days vs every 6 weeks) and iOS requirement (14.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. DeFind sells 2 in-app purchases, starting at $2.99 per month. Complicated problem solving asks for nothing beyond the download.

Complicated problem solving ships an update every 9 days, DeFind every 6 weeks. The most recent releases landed on October 6, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Complicated problem solving | DeFind |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 6 weeks |
| Size | 48 MB | 78 MB |
| Requires iOS | **14.0** | 26.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Man Hung Sun](https://appshunter.io/developer/1471605573) | [Oleksandr Kushpel](https://appshunter.io/developer/1710902702) |

## What reviewers say

### Complicated problem solving

[App page](https://appshunter.io/ios/app/complicated-problem-solving/id1526663206)

**Features:** macOS Compatibility

**In-app purchases:** none


### DeFind

[App page](https://appshunter.io/ios/app/defind/id6468914941)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $2.99 | per month |
| Annual | $24.99 | per year |


## Frequently asked questions

### Is Complicated problem solving free?

Complicated problem solving is free to download, with no in-app purchases.

### Is DeFind free?

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

### Do Complicated problem solving or DeFind have ads?

Neither Complicated problem solving nor DeFind shows ads.

### Which is updated more often, Complicated problem solving or DeFind?

Complicated problem solving ships an update every 9 days, and DeFind every 6 weeks. Most recently, Complicated problem solving was updated on October 6, 2026 and DeFind on October 12, 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.*