Comparison

Sender vs Post SMTP

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

Head to head
About

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.

Highlights
  • Send emails only
  • No inbox or distractions
  • SMTP protocol support
  • Connect your email provider
  • Create specific app passwords
  • Inbox-stressless phone experience
Features
Read full description

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!

About

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.

Highlights
  • Email delivery monitoring
  • Failure notifications
  • Resend failed emails
  • Email content preview
  • Multiple site support
  • SMTP service integration
Features
Read full description

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

Sender4 screens
Post SMTP4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

Sender ships an update monthly, Post SMTP every 6 weeks. The most recent releases landed on September 8, 2026 and June 4, 2026 respectively.

Scorecard3 real differences · 7 level
Sender versus Post SMTP: the parameters behind the verdict, then further details
ParameterSenderPost SMTP
PriceFreeFree
Rating4.5 (2 ratings) — better—
Positive reviews—0.0% of reviews
Number of ratings2 — better—
Update frequencyMonthly — betterEvery 6 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhoneiPhone, iPod — better
Requires iOS1713.4 — better
Further details — not scored
Size13 MB23 MB
Age rating4+4+
DeveloperSerhii PryimachukAhmed ElDin

Customer experience

Sender

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Post SMTP

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Sender

No in-app purchases

2 purchases

Post SMTP

Subscriptions2
  • Monthly Pro Access$4.991 Month
  • Annual Pro Access$39.991 Year

Questions

Is Sender free?
Sender is free to download, with no in-app purchases.
Is Post SMTP free?
Post SMTP is free to download, with in-app purchases available.
Do Sender or Post SMTP have ads?
Neither Sender nor Post SMTP shows ads.
Which is updated more often, Sender or Post SMTP?
Sender ships an update monthly, and Post SMTP every 6 weeks. Most recently, Sender was updated on September 8, 2026 and Post SMTP on June 4, 2026.

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