eM Client vs Post SMTP
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
eM Client
This app unifies email, calendar, tasks, contacts, and notes into a single, AI-enhanced platform. It offers advanced features typically found on desktop, including instant message translation and robust encryption, for seamless management of multiple accounts on your iPhone and iPad.
- AI-enhanced email drafting and replies
- Unified inbox for email, calendar, tasks, contacts, and notes
- Instant message translation
- PGP and S/MIME encryption
- Quick import from desktop app
- Mail-tracking pixel detection
- Snooze and Undo Send features
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These features include: • Super easy setup including quick import from the desktop app via QR code • AI Support for replies and email drafting • Emails, calendars, tasks, contacts and notes all in one place • Favorite, Global, and search folders to easily manage multiple accounts • Instant message translation • PGP and S/MIME encryption • Tags and Gmail labels support to sort and color-code your messages • Signatures you can choose from and assign to your accounts • QuickText: snippets of text you can quickly insert into your emails • Templates • Messages grouped into conversations • Advanced privacy options • Mail-Tracking pixel detection • Snooze • Watch for reply • Undo Send • Password protection • Online meetings integration • Cloud storage providers integration • Mobile device management (MDM) support and more
Post SMTP
Monitor WordPress email delivery and troubleshoot failures from your mobile device. Get instant notifications for issues, preview email content, and resend failed messages with ease. Connect to multiple WordPress sites and various SMTP services.
- Email delivery monitoring
- Failure notifications
- Resend failed emails
- Email content preview
- Multiple site support
- SMTP service integration
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PostSMTP Mobile App is the only app for WordPress email delivery monitoring, which helps you notify regarding email failures, show error details, preview the content of emails, resend failed emails, track multiple WP sites and more. The Post SMTP Mobile App works seamlessly with the Post SMTP plugin. To use the Post SMTP Mobile App: INSTALL IN JUST 3 STEPS 1• Login to your WordPress site 2• Navigate to Post SMTP → Mobile App 3• Scan the QR Code That's it! You can now see all your WordPress emails on your phone. POST SMTP APP FEATURES With the Post SMTP Mobile App, you can: • Monitor the status and performance of your WordPress emails • Receive notifications for any email failures and take action • Resend a failed email quickly and easily with one click • Preview the content of your email within the app • Connect multiple WordPress sites with the app • View the error details and solutions for any email failure CONNECT TO SMTP SERVICE OF YOUR CHOICE With the Post SMTP WordPress plugin, you can connect to any SMTP service, including; • Microsoft 365 (formerly Office 365) • SendGrid • Gmail • Brevo (Formerly Sendinblue) • Mailgun • Mandrill • Mailjet • Amazon SES • Elastic Email • PostMark • SparkPost • OR any SMTP service Finally, make sure your WordPress emails go right in your user's inbox. https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is review sentiment: eM Client at 48% against Post SMTP's 0%. eM Client also leads on in-app purchases (none vs 2) and update cadence (every 10 days vs every 6 weeks). Post SMTP's advantage is iOS requirement (13.4 vs 15.0). On price, ads 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. Post SMTP sells 2 in-app purchases, starting at $4.99 per month. eM Client asks for nothing beyond the download.
eM Client ships an update every 10 days, Post SMTP every 6 weeks. The most recent releases landed on October 9, 2026 and September 26, 2026 respectively.
| Parameter | eM Client | Post SMTP |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (47 ratings) — better | — |
| Positive reviews | 48.3% of reviews — better | 0.0% of reviews |
| Number of ratings | 47 — better | — |
| Update frequency | Every 10 days — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 | 13.4 — better |
| Further details — not scored | ||
| Size | 178 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | eM Client | Ahmed ElDin |
Customer experience
eM Client
Post SMTP
Bugs and requests
eM Client
Reported bugs
4 issues- Emails not sending immediately
- Drafts not visible or editable
- Inconsistent behavior when switching between folders
- Trouble signing in to multiple Google accounts
Requested features
6 requests- Calendar integration
- Improved background refresh and sync
- Custom notification sounds
- Ability to sort emails by sender
- More customization options
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- Actions from notifications (archive, mark as read, etc.)
Post SMTP
Not enough reviews yet to summarise bugs or requests.
In-app purchases
eM Client
No in-app purchases
Post SMTP
- Monthly Pro Access$4.991 Month
- Annual Pro Access$39.991 Year
