Comparison

SMTP Tester Pro vs CoTerm

Price, ratings, monetisation and update history for both apps, side by side — 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

CoTerm

Control your development environment and automate tasks directly from your phone. This tool provides a real terminal experience for running code, managing remote servers, and executing commands anywhere, anytime.

Highlights
  • Run code and automate tasks remotely
  • SSH connection with real terminal
  • Execute commands and manage workflows
  • Control multiple sessions
  • Real-time progress monitoring
  • AI-assisted development workflows
Features
Read full description

CoTerm – AI Coding Terminal is a mobile remote control tool for developers. Run code, automate CLI workflows, and manage your development environment directly from your phone. Turn your mobile device into a powerful terminal interface. Execute commands, monitor tasks, and control your workflows anytime, anywhere. What you can do • Run code and automate tasks in remote environments • Connect via SSH with a real terminal experience • Execute commands and manage development workflows • Control multiple sessions and switch instantly • Monitor progress and results in real time Built for Developers & AI Workflows CoTerm is designed for developers, AI engineers, and technical users who need real control over code, tasks, and terminal environments — not just chat. Perfect for: • CLI and terminal users • Remote server management • Coding and automation workflows • AI-assisted development workflows Subscriptions and In-App Purchases CoTerm offers optional auto-renewable subscriptions to unlock premium features: Subscription plans: • Monthly subscription • Yearly subscription (includes a 7-day free trial, if eligible) Notes: • Eligible users can access a 7-day free trial, after which the subscription will automatically renew as a yearly plan • Payment will be charged to your Apple ID at confirmation of purchase • Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period • You can manage or cancel subscriptions in your Apple ID account settings • Prices may vary by region and are displayed in the App Store Important Notes CoTerm provides remote terminal and automation capabilities. Performance may vary depending on network conditions and server configuration. Privacy and Terms Privacy Policy https://coterm-site.pages.dev/ Terms of Use (EULA) https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

SMTP Tester Pro4 screens
CoTerm3 screens

Verdict

The call

The clearest difference is price: CoTerm at Free against SMTP Tester Pro's $3.99. SMTP Tester Pro's advantage is in-app purchases (none vs 2). On ads, device support and iOS requirement 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

CoTerm is free to download; SMTP Tester Pro costs $3.99 up front. CoTerm sells 2 in-app purchases, starting at $2.99 per month. SMTP Tester Pro asks for nothing beyond the download.

Scorecard3 real differences · 7 level
SMTP Tester Pro versus CoTerm: the parameters behind the verdict, then further details
ParameterSMTP Tester ProCoTerm
Price$3.99Free — better
Rating—5.0 (1 ratings) — better
Positive reviews75.0% of reviews—
Number of ratings—1 — better
Update frequencyEvery 6 weeks—
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFreemium — better
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.615.1 — better
Further details — not scored
Size4 MB29 MB
Age rating4+4+
DeveloperDorian Borovina思亮 刘

Customer experience

SMTP Tester Pro

Written reviews4 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

CoTerm

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

SMTP Tester Pro

No in-app purchases

2 purchases

CoTerm

Subscriptions2
  • Pro Monthly$2.991 Month
  • Pro Yearly$17.991 Year

Questions

Is SMTP Tester Pro free?
SMTP Tester Pro costs $3.99, with no in-app purchases.
Is CoTerm free?
CoTerm is free to download, with in-app purchases available.
Do SMTP Tester Pro or CoTerm have ads?
Neither SMTP Tester Pro nor CoTerm shows ads.

Other comparisons