# MSR Mail Tracker vs PDF Studio Manager Pro

The clearest difference is price: MSR Mail Tracker at Free against PDF Studio Manager Pro's $0.99. MSR Mail Tracker also leads on iOS requirement (11.0 vs 16.4). On ads, in-app purchases and device support there is nothing between them.

MSR Mail Tracker is free to download; PDF Studio Manager Pro costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | MSR Mail Tracker | PDF Studio Manager Pro |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Size | 21 MB | 3 MB |
| Requires iOS | **11.0** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [TRACKEX LLC](https://appshunter.io/developer/1492982032) | [EyeOS Store Inc.](https://appshunter.io/developer/1036418634) |

## What reviewers say

### MSR Mail Tracker

[App page](https://appshunter.io/ios/app/msr-mail-tracker/id6449599992)

**Features:** macOS Compatibility

**In-app purchases:** none


### PDF Studio Manager Pro

[App page](https://appshunter.io/ios/app/pdf-studio-manager-pro/id6751773630)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MSR Mail Tracker free?

MSR Mail Tracker is free to download, with no in-app purchases.

### Is PDF Studio Manager Pro free?

PDF Studio Manager Pro costs $0.99, with no in-app purchases.

### Do MSR Mail Tracker or PDF Studio Manager Pro have ads?

Neither MSR Mail Tracker nor PDF Studio Manager Pro 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.*