# Mailtrack vs PrepDoc

The clearest difference is price: Mailtrack at Free against PrepDoc's $2.99. Mailtrack also leads on iOS requirement (16.4 vs 18.6). On update cadence, ads, in-app purchases and device support there is nothing between them.

Mailtrack is free to download; PrepDoc costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Mailtrack ships an update every 9 days, PrepDoc every 5 days. The most recent releases landed on October 14, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Mailtrack | PrepDoc |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[4.1 (51 ratings)](https://appshunter.io/ios/app/mailtrack-email-read-receipts/id6692619685/reviews)** | — |
| Number of ratings | **51** | — |
| Positive reviews | 42.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 5 days** |
| Monetization | Freemium | — |
| Size | 45 MB | 3 MB |
| Requires iOS | **16.4** | 18.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Mailsuite S.L.](https://appshunter.io/developer/981890781) | [Ferkan Sari](https://appshunter.io/developer/1547086877) |

## What reviewers say

### Mailtrack

[App page](https://appshunter.io/ios/app/mailtrack-email-read-receipts/id6692619685)

This app provides real-time notifications when your emails are opened, allowing you to track engagement and follow up effectively. It identifies individual recipients who opened group emails and offers reminders for unread messages. The service prioritizes privacy and compliance with data security standards.

**Highlights:** Automatic email tracking, Real-time open notifications, Individual recipient tracking, Follow-up reminders, Link click tracking, Full open history

**In-app purchases:** none


### PrepDoc

[App page](https://appshunter.io/ios/app/prepdoc-document-scanner/id6760216278)

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

**In-app purchases:** none


## Frequently asked questions

### Is Mailtrack free?

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

### Is PrepDoc free?

PrepDoc costs $2.99, with no in-app purchases.

### Do Mailtrack or PrepDoc have ads?

Neither Mailtrack nor PrepDoc shows ads.

### Which is updated more often, Mailtrack or PrepDoc?

Mailtrack ships an update every 9 days, and PrepDoc every 5 days. Most recently, Mailtrack was updated on October 14, 2026 and PrepDoc on September 20, 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.*