Comparison

SMTP Tester Pro vs SSL Checker+

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

Head to head
About

SMTP Tester Pro

This application helps developers and IT professionals test and debug SMTP connections. It offers an intuitive interface for configuring servers, composing emails, and analyzing detailed transaction logs. Predefined templates for popular services and custom template management simplify setup and troubleshooting.

Highlights
  • SMTP server configuration
  • Support for various authentication methods
  • Multiple TLS modes
  • Customizable timeout settings
  • Email composition with CC/BCC
  • Template management
  • Detailed SMTP transaction logs
Features
Read full description

Test any SMTP server from your iPhone or iPad. Enter the server, pick the encryption and login method, send a real test email, and see the complete SMTP conversation in a color-coded transaction log. SMTP Tester Pro is built for IT admins, developers and email administrators who need to know why mail isn't going out. Connection and security: - TLS modes: Require STARTTLS (port 587), Require TLS (SSL/TLS, port 465), Normal and Ignore TLS - Login methods: LOGIN, PLAIN, CRAM-MD5 and XOAUTH2, or no login for relays and test servers - Self-signed certificates and custom OpenSSL cipher suites - Adjustable timeout Real test emails: - To, CC and BCC with comma-separated addresses - HTML body with a built-in template and a plain-text fallback - File attachments from the Files app - Custom headers such as Reply-To or X-Priority Transaction log: - Every command and server reply, color-coded, with a color legend - Successful and failed sends are saved in the log, grouped by day - Search a log, show or hide timestamps, copy or share it - Clear error messages with the server's own reply and troubleshooting tips Templates: - Server settings for Microsoft 365, Gmail, Outlook.com, iCloud Mail, Yahoo Mail, AOL Mail, Zoho Mail, GMX Mail, Yandex Mail and Mail.com - Save your own servers as templates, stored encrypted on your device - Password-protected backup and restore of your templates Privacy and appearance: - Face ID lock and password visibility settings - Passwords and access tokens are never written to the log - Light, Dark and System appearance, adjustable log font size and colors - Works on iPhone and iPad

About

SSL Checker+

Read full description

SSL Certificate Monitor keeps your websites safe by tracking SSL/TLS certificate expiry dates and alerting you before it's too late. One-time purchase - no subscription, no hidden fees. Whether you manage one website or dozens, this app gives you instant visibility into certificate health directly from your iPhone. ** FEATURES ** REAL-TIME SSL CHECKING Add any domain and instantly see its certificate status, expiry date, issuer, and days remaining. PUSH NOTIFICATIONS Get alerted before a certificate expires - 7, 14, 30, or 60 days in advance. You set the threshold. DASHBOARD OVERVIEW See at a glance how many domains are valid, expiring soon, or already expired - all in one screen. CHECK HISTORY Every check is logged with date grouping. Spot patterns and verify exactly when an issue started. BACKGROUND REFRESH The app checks certificates automatically in the background - no manual action needed. DARK MODE Full Light and Dark mode support. ** HOW IT WORKS ** 1. Add a domain (e.g. apple.com) 2. The app checks the SSL certificate instantly 3. See the expiry date, issuer, and validity status 4. Enable push notifications to get alerted before expiry ** WHO IS IT FOR? ** - Freelancers and agencies managing client websites - Developers who run their own servers - Business owners who want peace of mind - Anyone who has had a certificate expire unexpectedly ** PRIVACY ** No account required. No ads. No tracking. No subscription. Your domain list stays on your device. Push notification tokens are used solely to deliver expiry alerts. Stop firefighting expired certificates. One-time purchase. Yours forever.

Screenshots

SMTP Tester Pro4 screens
SSL Checker+4 screens

Verdict

The call

The clearest difference is chart position: SMTP Tester Pro at #194 against SSL Checker+'s unranked. SSL Checker+'s advantage is price ($2.99 vs $3.99). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

SMTP Tester Pro costs $3.99 and SSL Checker+ $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard2 real differences ยท 7 level
SMTP Tester Pro versus SSL Checker+: the parameters behind the verdict, then further details
ParameterSMTP Tester ProSSL Checker+
Price$3.99$2.99 โ€” better
Positive reviews75.0% of reviewsโ€”
Update frequencyEvery 6 weeksโ€”
AdsNoNo
In-app purchasesNoNo
MonetizationPaidโ€”
Best chart rank#194 โ€” betterโ€”
DevicesiPhone, iPad โ€” betteriPhone
Requires iOS16.616.6
Further details โ€” not scored
Size4 MB4 MB
Age rating4+4+
DeveloperDorian BorovinaEmre Keles

In-app purchases

None

SMTP Tester Pro

No in-app purchases

None

SSL Checker+

No in-app purchases

Questions

Is SMTP Tester Pro free?
SMTP Tester Pro costs $3.99, with no in-app purchases.
Is SSL Checker+ free?
SSL Checker+ costs $2.99, with no in-app purchases.
Do SMTP Tester Pro or SSL Checker+ have ads?
Neither SMTP Tester Pro nor SSL Checker+ shows ads.

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