# Photo to pdf vs HeaderCheck

The clearest difference is update cadence: Photo to pdf at every 3 days against HeaderCheck's fortnightly. Photo to pdf also leads on iOS requirement (18.5 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Photo to pdf sells 2 in-app purchases, starting at $5.99 per 7 days and HeaderCheck sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Photo to pdf ships an update every 3 days, HeaderCheck fortnightly. The most recent releases landed on October 16, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Photo to pdf | HeaderCheck |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Fortnightly |
| Size | 27 MB | 2 MB |
| Requires iOS | **18.5** | 26.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Marcin Jedrzejak](https://appshunter.io/developer/1742465555) | [Nicholas McLarty](https://appshunter.io/developer/1572125539) |

## What reviewers say

### Photo to pdf

[App page](https://appshunter.io/ios/app/photo-to-pdf-shotdocu/id6749449366)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $5.99 | per 7 days |
| Unlimited access | $29.99 | one-time |


### HeaderCheck

[App page](https://appshunter.io/ios/app/headercheck/id6809026356)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HeaderCheck Pro | $2.99 | one-time |


## Frequently asked questions

### Is Photo to pdf free?

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

### Is HeaderCheck free?

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

### Do Photo to pdf or HeaderCheck have ads?

Neither Photo to pdf nor HeaderCheck shows ads.

### Which is updated more often, Photo to pdf or HeaderCheck?

Photo to pdf ships an update every 3 days, and HeaderCheck fortnightly. Most recently, Photo to pdf was updated on October 16, 2026 and HeaderCheck on October 20, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*