Comparison

Mail Tracer vs Open Docs

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Track email opens
  • See read times and frequency
  • View access location and device
  • Real-time open alerts
  • Unlimited free tracking
Features
Read 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

About

Open Docs

Features
Read 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

Mail Tracer4 screens
Open Docs2 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

Scorecard3 real differences · 7 level
Mail Tracer versus Open Docs: the parameters behind the verdict, then further details
ParameterMail TracerOpen Docs
PriceFreeFree
Rating3.9 (219 ratings) — better—
Positive reviews18.3% of reviews—
Number of ratings219 — better—
Update frequencyEvery 2 weeksFortnightly — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better18.2
Further details — not scored
Size29 MB36 MB
Age rating4+4+
DeveloperVaibhav NarulaHo 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

9 purchases

Mail Tracer

Subscriptions8
  • Pro - Weekly3 Days trial$1.997 Days
  • Pro - Monthly3 Days trial$3.991 Month
  • Pro Plan - Monthly3 Days trial$6.991 Month
Show 5 more
  • 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
One-time1
  • Pro Version - Lifetime$29.99
None

Open Docs

No in-app purchases

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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