Sender vs Post SMTP
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sender
This app provides a focused way to send emails without the distraction of an inbox. It utilizes SMTP to send messages, allowing you to connect your preferred email provider. Ideal for quick dispatches when you need to avoid the complexities of a traditional email client.
- Send emails only
- No inbox or distractions
- SMTP protocol support
- Connect your email provider
- Create specific app passwords
- Inbox-stressless phone experience
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A tiny app that allows you to send email, but not receive. No inbox, no distraction. For those who are tired of the busy email bandwagon but still needs to dash off a quick email on a go. Why not using regular email app with silenced notifications? Because it requires willpower, which we have only little. Don't test yourself, have a system that works just as needed. Sender sends emails via SMTP, which stands for Simple Mail Transfer Protocol. This is what email is supposed to be, right? Set up your email provider of choice in the app, and you're good to go. Every major email provider allows sending with SMTP protocol. You'll just need to create a specific password. There are links for instructions in the app to help with that. Enjoy inbox-stressless phone!
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 in-app purchases: Sender at none against Post SMTP's 2. Post SMTP's advantage is iOS requirement (13.4 vs 17). On price, update cadence, 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. Sender asks for nothing beyond the download.
Sender ships an update monthly, Post SMTP every 6 weeks. The most recent releases landed on September 8, 2026 and June 4, 2026 respectively.
| Parameter | Sender | Post SMTP |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (2 ratings) — better | — |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | 2 — better | — |
| Update frequency | Monthly — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 17 | 13.4 — better |
| Further details — not scored | ||
| Size | 13 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | Serhii Pryimachuk | Ahmed ElDin |
Customer experience
Sender
Post SMTP
In-app purchases
Sender
No in-app purchases
Post SMTP
- Monthly Pro Access$4.991 Month
- Annual Pro Access$39.991 Year








