# Stellar OTP vs PDF

The clearest difference is in-app purchases: Stellar OTP at none against PDF's 4. PDF's advantage is iOS requirement (15.6 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. PDF sells 4 one-off in-app purchases. Stellar OTP asks for nothing beyond the download.

## The numbers

| Metric | Stellar OTP | PDF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/pdf-ai-document-translator/id6753106766/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 months |
| Size | 3 MB | 7 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone, Apple Watch | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Aleksey Krzhivitskiy](https://appshunter.io/developer/1613514160) | [Yogesh Rathod](https://appshunter.io/developer/1548316962) |

## What reviewers say

### Stellar OTP

[App page](https://appshunter.io/ios/app/stellar-otp/id6499083844)

**Features:** macOS Compatibility

**In-app purchases:** none


### PDF

[App page](https://appshunter.io/ios/app/pdf-ai-document-translator/id6753106766)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Five File Translation | $4.99 | one-time |
| Ten File Translator | $8.99 | one-time |
| Twenty File Translator | $14.99 | one-time |
| Fifty File Translator | $24.99 | one-time |


## Frequently asked questions

### Is Stellar OTP free?

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

### Is PDF free?

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

### Do Stellar OTP or PDF have ads?

Neither Stellar OTP nor PDF shows ads.

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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.*