# NanaTimer vs Image To PDF Converter

The clearest difference is in-app purchases: NanaTimer at none against Image To PDF Converter's 2. Image To PDF Converter's advantage is update cadence (daily vs weekly) and iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Image To PDF Converter sells 2 in-app purchases, starting at $3.99 per 7 days. NanaTimer asks for nothing beyond the download.

NanaTimer ships an update weekly, Image To PDF Converter daily. Both last shipped on October 5, 2026.

## The numbers

| Metric | NanaTimer | Image To PDF Converter |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Daily** |
| Size | 4 MB | 47 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [JEONGUK SHIN](https://appshunter.io/developer/1755611007) | [Mark Tan](https://appshunter.io/developer/1813558872) |

## What reviewers say

### NanaTimer

[App page](https://appshunter.io/ios/app/nanatimer-study-timer/id6511249582)

**Features:** macOS Compatibility

**In-app purchases:** none


### Image To PDF Converter

[App page](https://appshunter.io/ios/app/image-to-pdf-converter-pro/id6757941245)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Image To PDF Weekly | $3.99 | per 7 days |
| Image To PDF Lifetime | $14.99 | one-time |


## Frequently asked questions

### Is NanaTimer free?

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

### Is Image To PDF Converter free?

Image To PDF Converter is free to download, with in-app purchases available.

### Do NanaTimer or Image To PDF Converter have ads?

Neither NanaTimer nor Image To PDF Converter shows ads.

### Which is updated more often, NanaTimer or Image To PDF Converter?

NanaTimer ships an update weekly, and Image To PDF Converter daily. Most recently, NanaTimer was updated on October 5, 2026 and Image To PDF Converter on October 5, 2026.

---

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