Comparison

PeterJohn NumPy Matplotlib vs SMTP Tester Pro

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

Head to head
About

PeterJohn NumPy Matplotlib

This Python interpreter for iPhone allows you to study data science, deep learning, and reinforcement learning using NumPy and Matplotlib. It provides a user-friendly interface with tutorials and scripts to get started quickly.

Highlights
  • Python interpreter for iPhone
  • Includes NumPy module
  • Includes Matplotlib module
  • Study data science, deep learning, reinforcement learning
  • Tutorials and example scripts
  • Run Python scripts
Features
Read full description

Now PeterJohn, a Python Interpreter which Runs on iPhone, Β  Acquired Two Major Modules, NumPy and Matplotlib. they will help you to studyΒ  DataScience, DeepLearning, ReinforcementLearning. it's like King Jesus sent twelve disciples out two by two. **Mark 6:7;12-13, GNT 6:7 He called the twelve disciples together and sent them out two by two. He gave them authority over the evil spirits. 6:12 So they went out and preached that people should turn away from their sins.Β  6:13 They drove out many demons, and rubbed olive oil on many sick people and healed them. **** How to Use it; 1) First, Touch "Add Tutorial" at the BottomLeft of ProjectsView. 2) Touch "TutorialSeason006" at ProjectsView. 3) Choose One of Four at ScriptsView. s001PILimageFontTest.py; This doesNot use Matplotlib but uses only Matplotlib TTF(TrueTypeFonts). s002matplotlibPltPlot.py s003matplotlibPltLegend.py s004BarChartOnPolarAxis.py 4) Touch "RunScript" at the TopRight of EditScriptView. 5) Only for the first time, the warning that "AppleMetal Cache Directory doesNot Exist" appears, Once needs to go back to EditScriptView, and then touch "RunScript" at the TopRight of EditScriptView Again. 6) the script is Executed at RunScriptView. **** Enjoy NumPy, Enjoy Matplotlib Enjoy DataScience, DeepLearing, ReinforcementLearing. Enjoy PeterJohnNumPyMatplotlib --Yasushi Yassun Obata

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

Screenshots

PeterJohn NumPy Matplotlib4 screens
SMTP Tester Pro4 screens

Verdict

The call

The clearest difference is review sentiment: SMTP Tester Pro at 75% against PeterJohn NumPy Matplotlib's 0%. SMTP Tester Pro also leads on price ($3.99 vs $12.99). PeterJohn NumPy Matplotlib's advantage is update cadence (every 2 weeks vs every 6 weeks). On ads, in-app purchases, monetization model and device support there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

PeterJohn NumPy Matplotlib costs $12.99 and SMTP Tester Pro $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

PeterJohn NumPy Matplotlib ships an update every 2 weeks, SMTP Tester Pro every 6 weeks. The most recent releases landed on October 7, 2026 and October 15, 2026 respectively.

Scorecard3 real differences Β· 5 level
PeterJohn NumPy Matplotlib versus SMTP Tester Pro: the parameters behind the verdict, then further details
ParameterPeterJohn NumPy MatplotlibSMTP Tester Pro
Price$12.99$3.99 β€” better
Positive reviews0.0% of reviews75.0% of reviews β€” better
Update frequencyEvery 2 weeks β€” betterEvery 6 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.0 β€” better16.6
Further details β€” not scored
Size222 MB4 MB
Age rating4+4+
DeveloperYasushi ObataDorian Borovina

Customer experience

PeterJohn NumPy Matplotlib

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

SMTP Tester Pro

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

In-app purchases

None

PeterJohn NumPy Matplotlib

No in-app purchases

None

SMTP Tester Pro

No in-app purchases

Questions

Is PeterJohn NumPy Matplotlib free?
PeterJohn NumPy Matplotlib costs $12.99, with no in-app purchases.
Is SMTP Tester Pro free?
SMTP Tester Pro costs $3.99, with no in-app purchases.
Do PeterJohn NumPy Matplotlib or SMTP Tester Pro have ads?
Neither PeterJohn NumPy Matplotlib nor SMTP Tester Pro shows ads.
Which is updated more often, PeterJohn NumPy Matplotlib or SMTP Tester Pro?
PeterJohn NumPy Matplotlib ships an update every 2 weeks, and SMTP Tester Pro every 6 weeks. Most recently, PeterJohn NumPy Matplotlib was updated on October 7, 2026 and SMTP Tester Pro on October 15, 2026.

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