Mail Tracer vs Open Docs
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Mail Tracer
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.
- Track email opens
- See read times and frequency
- View access location and device
- Real-time open alerts
- Unlimited free tracking
Read full descriptionHide full description
Mail Tracer is an email tracking app for iOS Mail App that lets you know if the emails you’ve sent have been read or not. ****GET TO KNOW IF PEOPLE ARE READING YOUR MAILS**** EMAIL TRACKING FOR APPLE NATIVE MAIL APP - See which emails have been read, how long ago and how many times - Stop asking if your colleagues read your emails - Find out location and device from which your emails were accessed MAIL TRACER BASIC FREE - Free and unlimited email tracking - Real-time alerts when your emails are open MAIL TRACER PRO - For professionals using iOS Mail App - Unlimited features - Ad-free signature - Premium 24-hour support WHO IS IT FOR? - Anyone sending emails from iOS Mail App. - Account managers, businesses, sales teams and people with direct client relationships - Professionals looking to increase their productivity - Teams, project managers, coordinators and internal communications - Independent professionals and freelancers - Professionals actively looking for employment Some features within the app require an additional subscription. When you purchase a subscription, please be aware of the following: - Payment will be charged to iTunes Account at confirmation of purchase - Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period - Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal - Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase - Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable Find Our Terms of Use : https://mailtracer.app/terms.html Privacy Policy : https://mailtracer.app/privacy.html Keywords: email tracker, email tracking, mail track, mail tracking, mailtrack for gmail, mail tracking for gmail, email tracking for gmail, email tracker for gmail, tracker, outlook email tracker
Open Docs
Read full descriptionHide full description
OpenDocs is a clean, local-first document viewer for the files you already have. Open PDFs, Word, Excel, Markdown, text, CSV, JSON, XML, and RTF files from Files or other apps, then return to them with saved reading history. • Browse recent files by name, format, and favorites. • Read text, Markdown, CSV, JSON, XML, and RTF in a focused viewer. • View PDFs with zoom and efficient page loading. • Preview DOCX and XLSX while keeping the native full-fidelity viewer path available. • Share documents or open them in another compatible app. • Choose light, dark, or system appearance, text size, wrapping, and resume position. OpenDocs does not require an account and includes no ads, analytics, or tracking SDKs. Document references and reading history stay on-device; document contents are not uploaded to OpenDocs or a remote conversion service. The optional Support the author screen loads a QR image from VietQR. Open your files simply, privately, and right when you need them.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Mail Tracer | Open Docs |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (219 ratings) — better | — |
| Positive reviews | 18.3% of reviews | — |
| Number of ratings | 219 — better | — |
| Update frequency | Every 2 weeks | Fortnightly — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 — better | 18.2 |
| Further details — not scored | ||
| Size | 29 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | Vaibhav Narula | Ho Dung |
Bugs and requests
Mail Tracer
Reported bugs
3 issues- Frequent crashes and errors
- Compatibility issues with newer iOS versions
- Tracking not working as expected
Requested features
3 requests- Improved accuracy of location and device tracking
- Ability to track replies and forwards
- Integration with more email clients
Open Docs
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Mail Tracer
- Pro - Weekly3 Days trial$1.997 Days
- Pro - Monthly3 Days trial$3.991 Month
- Pro Plan - Monthly3 Days trial$6.991 Month
Show 5 moreShow fewer
- Pro Plan - Yearly3 Days trial$14.991 Year
- Pro Plan - Yearly3 Days trial$19.991 Year
- Pro Plan - Yearly3 Days trial$24.991 Year
- Pro Plan - Yearly7 Days trial$29.991 Year
- Pro Plan - Yearly3 Days trial$39.991 Year
- Pro Version - Lifetime$29.99
Open Docs
No in-app purchases
Questions
Is Mail Tracer free?
Is Open Docs free?
Do Mail Tracer or Open Docs have ads?
Which is updated more often, Mail Tracer or Open Docs?
Other comparisons















