# PassFinder vs Leitor PDF

The clearest difference is in-app purchases: PassFinder at none against Leitor PDF's 1. Leitor PDF's advantage is update cadence (every 4 weeks vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Leitor PDF sells 1 in-app purchase, starting at $19.99 per year. PassFinder asks for nothing beyond the download.

PassFinder ships an update every 3 months, Leitor PDF every 4 weeks. The most recent releases landed on October 20, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | PassFinder | Leitor PDF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.1 (30 ratings)](https://appshunter.io/ios/app/passfinder/id721125800/reviews)** | — |
| Number of ratings | **30** | — |
| Positive reviews | 39.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 weeks** |
| Monetization | Free | — |
| Size | 5 MB | 3 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Christian Hansen](https://appshunter.io/developer/721033532) | [DANIEL GOMES PEREIRA](https://appshunter.io/developer/1896629586) |

## What reviewers say

### PassFinder

[App page](https://appshunter.io/ios/app/passfinder/id721125800)

Track the International Space Station's visible passes over your location. Receive precise timing information to observe the ISS with the naked eye.

**Highlights:** ISS pass tracking, Visible pass notifications, Naked-eye observation guidance, Location-based timing

**Features:** macOS Compatibility

**In-app purchases:** none


### Leitor PDF

[App page](https://appshunter.io/ios/app/leitor-pdf/id6788854472)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Leitor Premium Anual | $19.99 | per year |


## Frequently asked questions

### Is PassFinder free?

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

### Is Leitor PDF free?

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

### Do PassFinder or Leitor PDF have ads?

Neither PassFinder nor Leitor PDF shows ads.

### Which is updated more often, PassFinder or Leitor PDF?

PassFinder ships an update every 3 months, and Leitor PDF every 4 weeks. Most recently, PassFinder was updated on October 20, 2026 and Leitor PDF on October 25, 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.*