# Mail Tracer vs Open Docs

The clearest difference is in-app purchases: Open Docs at none against Mail Tracer's 9. Open Docs also leads on ads (none vs shown). Mail Tracer's advantage is iOS requirement (16.0 vs 18.2). On price, update cadence and device support there is nothing between them.

Both are free to download. Mail Tracer sells 9 in-app purchases, starting at $1.99 per 7 days. Open Docs asks for nothing beyond the download.

Mail Tracer ships an update every 2 weeks, Open Docs fortnightly. The most recent releases landed on September 28, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Mail Tracer | Open Docs |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (219 ratings)](https://appshunter.io/ios/app/mail-tracer-email-tracking/id1254940903/reviews)** | — |
| Number of ratings | **219** | — |
| Positive reviews | 18.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Fortnightly** |
| Monetization | Free with in-app purchases | — |
| Size | 29 MB | 36 MB |
| Requires iOS | **16.0** | 18.2 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Vaibhav Narula](https://appshunter.io/developer/1116489344) | [Ho Dung](https://appshunter.io/developer/6805516667) |

## What reviewers say

### Mail Tracer

[App page](https://appshunter.io/ios/app/mail-tracer-email-tracking/id1254940903)

This app provides advanced email tracking for the iOS Mail app, letting you know if your sent emails have been read, when, and how many times. It also offers insights into the location and device used to access your emails.

**Highlights:** Track email opens, See read times and frequency, View access location and device, Real-time open alerts, Unlimited free tracking

**Features:** Vision Pro support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro - Weekly | $1.99 | per 7 days |
| Pro - Monthly | $3.99 | per month |
| Pro Plan - Monthly | $6.99 | per month |
| Pro Plan - Yearly | $14.99 | per year |
| Pro Plan - Yearly | $19.99 | per year |
| Pro Plan - Yearly | $24.99 | per year |
| Pro Plan - Yearly | $29.99 | per year |
| Pro Plan - Yearly | $39.99 | per year |
| Pro Version - Lifetime | $29.99 | one-time |

**What reviewers like**

- 🚀 Efficient email tracking
- 👍 Simple and easy to use
- 🔒 Secure and private

**What reviewers complain about**

- 🐛 Inconsistent and unreliable tracking
- 💰 Expensive paid version
- 🔍 Limited free version features
- 🤖 Poor customer support

**Reported bugs**

- Frequent crashes and errors
- Compatibility issues with newer iOS versions
- Tracking not working as expected

**Requested features**

- Improved accuracy of location and device tracking
- Ability to track replies and forwards
- Integration with more email clients


### Open Docs

[App page](https://appshunter.io/ios/app/open-docs-document-viewer/id6806442426)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Mail Tracer free?

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

### Is Open Docs free?

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

### Do Mail Tracer or Open Docs have ads?

Mail Tracer shows ads; Open Docs does not.

### Which is updated more often, Mail Tracer or Open Docs?

Mail Tracer ships an update every 2 weeks, and Open Docs fortnightly. Most recently, Mail Tracer was updated on September 28, 2026 and Open Docs on September 17, 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.*