# Deja vs Signodex

The clearest difference is in-app purchases: Deja at none against Signodex's 8. Deja also leads on ads (none vs shown). Signodex's advantage is iOS requirement (13.4 vs 15.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Signodex sells 8 in-app purchases, starting at $14.99 per month. Deja asks for nothing beyond the download.

Deja ships an update every 4 days, Signodex weekly. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Deja | Signodex |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 4 days** | Weekly |
| Size | 73 MB | 64 MB |
| Requires iOS | 15.0 | **13.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [JUHWAN LEE](https://appshunter.io/developer/1703441721) | [CIGDEM CAN](https://appshunter.io/developer/1895120143) |

## 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


### Signodex

[App page](https://appshunter.io/ios/app/signodex-market-analysis/id6800283198)

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Signodex Pro Monthly | $14.99 | per month |
| Signodex Premium Monthly | $29.99 | per month |
| Signodex Pro Annual | $149.99 | per year |
| Signodex Premium Annual | $299.99 | per year |
| 100 Credits | $1.99 | one-time |
| 500 Credits | $6.99 | one-time |
| 1000 Credits | $11.99 | one-time |
| 2000 Credits | $19.99 | one-time |


## Frequently asked questions

### Is Deja free?

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

### Is Signodex free?

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

### Do Deja or Signodex have ads?

Signodex shows ads; Deja does not.

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

Deja ships an update every 4 days, and Signodex weekly. Most recently, Deja was updated on November 9, 2026 and Signodex on October 31, 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.*