# Deja vs PatternFusion

The clearest difference is in-app purchases: Deja at none against PatternFusion's 4. Deja also leads on ads (none vs shown) and update cadence (every 4 days vs every 10 days). On price and device support there is nothing between them.

Both are free to download. PatternFusion sells 4 in-app purchases, starting at $2.99 per 7 days. Deja asks for nothing beyond the download.

Deja ships an update every 4 days, PatternFusion every 10 days. The most recent releases landed on September 15, 2026 and September 4, 2026 respectively.

## The numbers

| Metric | Deja | PatternFusion |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 4 days** | Every 10 days |
| Size | 73 MB | 42 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [JUHWAN LEE](https://appshunter.io/developer/1703441721) | [MUHAMMED MERT TOPRAK](https://appshunter.io/developer/1896771050) |

## What reviewers say

### Deja

[App page](https://appshunter.io/ios/app/deja-chart-pattern-analysis/id6761725119)

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

**In-app purchases:** none


### PatternFusion

[App page](https://appshunter.io/ios/app/patternfusion-trading/id6789936092)

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $2.99 | per 7 days |
| Monthly Premium | $3.99 | per month |
| 5 Analyse Package | $0.99 | one-time |
| 10 Analyse Package | $1.99 | one-time |


## Frequently asked questions

### Is Deja free?

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

### Is PatternFusion free?

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

### Do Deja or PatternFusion have ads?

PatternFusion shows ads; Deja does not.

### Which is updated more often, Deja or PatternFusion?

Deja ships an update every 4 days, and PatternFusion every 10 days. Most recently, Deja was updated on September 15, 2026 and PatternFusion on September 4, 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.*