Comparison

Voltage Regulator vs Learn ESP32 Programming Pro

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

Head to head
About

Voltage Regulator

Calculate resistor combinations for adjustable voltage regulators. This tool helps electronics hobbyists and professionals determine desired output voltages and resistor values. Results can be exported and shared easily.

Highlights
  • Adjustable voltage regulator support
  • Calculate resistor combinations
  • Determine resistor values
  • Export results to CSV
  • Share CSV via iCloud/AirDrop
Features
Read full description

This app is a voltage regulator calculator. It is is suitable for electronics hobbyist, electronic engineers or professionals. Features * Support 3-terminals adjustable voltage regulators * To find out combinations of 2 resistors making a desired output voltage * Calculate resistor values / output voltage * Export results to CSV file * Share CSV file to iCloud Drive (For iOS8 or later) * Share CSV file via AirDrop (For iOS7 or later) Feature in PRO only * Calculate thermal resistance of heatsink * Selectable 1%, 5% resistors * No ads * No limitations

About

Learn ESP32 Programming Pro

Features
Read full description

Master ESP32 Programming — from GPIO basics to advanced sensor and module control. Build connected devices, control sensors, and learn embedded programming step by step through practical examples, interactive quizzes, and clear explanations. This course is based on the ESP32-C3 Super Mini development board, carefully selected for beginners because it is affordable, compact, widely available, energy efficient, and includes built-in Wi-Fi and Bluetooth connectivity. Its simple design makes it an excellent platform for learning modern IoT and embedded systems development. Available in 6 Languages: • English, French, German, Portuguese, Russian, and Spanish — study in your native language! The app uses Arduino IDE, one of the world's most popular development environments for microcontrollers. Arduino IDE is beginner-friendly, easy to install, and supported by a massive community, making it the perfect choice for learning ESP32 programming and creating projects quickly. Perfect For: • Beginners learning ESP32 programming • Students studying embedded systems and IoT • Makers building smart devices and automation projects • Electronics enthusiasts working with sensors and modules • Developers creating connected products and prototypes What You'll Learn: • GPIO — Digital input/output, buttons, switches, and LED control • ADC — Read analog sensors and variable voltage signals • PWM — Control LED brightness, servos, and motor speed • UART — Serial communication with external devices • I²C — Connect displays, sensors, and expansion modules • SPI — High-speed communication with peripherals Sensors and Modules Explore a wide range of hardware modules and practical applications: • Distance — Ultrasonic sensors and obstacle detection • Temperature & Humidity — Environmental monitoring projects • Pressure — Barometric and weather-related measurements • Light — Ambient light and photoresistor sensors • Motion — PIR motion detection systems • Vibration — Shock and vibration monitoring • Sound — Buzzers, microphones, and audio modules • Gas Sensors — Air-quality and gas detection projects • Water & Soil Moisture — Smart gardening applications • Magnetic Sensors — Hall-effect and magnetic field detection • Touch Sensors — Capacitive touch interfaces • Infrared (IR) — Remote control communication • Relays — Control high-power external devices • Motors — DC motors, servo motors, and motor drivers • LCD Displays — Character-based user interfaces • OLED Displays — Graphics and information displays • LED Modules — Indicators, animations, and lighting projects • RTC Modules — Real-time clock integration • IMU Sensors — Accelerometers and gyroscopes Complete Learning Experience: • 25+ structured chapters from beginner to advanced • Step-by-step examples with detailed explanations • Practical projects and real-world applications • 150+ interactive quiz questions User-Friendly Features: • Dark and light themes • Offline learning — no internet required • Fast search across all lessons • Bookmark favorite topics • Clean and distraction-free interface ESP32 is a trademark of Espressif Systems. Arduino is a trademark of Arduino AG. This app is an independent educational resource and is not affiliated with or endorsed by either organization.

Screenshots

Voltage Regulator4 screens
Learn ESP32 Programming Pro4 screens

Verdict

The call

The clearest difference is price: Voltage Regulator at Free against Learn ESP32 Programming Pro's $4.99. Voltage Regulator also leads on iOS requirement (12.0 vs 16.0). Learn ESP32 Programming Pro's advantage is in-app purchases (none vs 1) and update cadence (monthly vs every 9 months). On 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

Voltage Regulator is free to download; Learn ESP32 Programming Pro costs $4.99 up front. Voltage Regulator sells 1 one-off in-app purchase. Learn ESP32 Programming Pro asks for nothing beyond the download.

UpkeepUpdate frequency

Voltage Regulator ships an update every 9 months, Learn ESP32 Programming Pro monthly. Both last shipped on September 16, 2026.

Scorecard4 real differences · 6 level
Voltage Regulator versus Learn ESP32 Programming Pro: the parameters behind the verdict, then further details
ParameterVoltage RegulatorLearn ESP32 Programming Pro
PriceFree — better$4.99
Rating4.8 (5 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings5 — better—
Update frequencyEvery 9 monthsMonthly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS12.0 — better16.0
Further details — not scored
Size3 MB25 MB
Age rating4+4+
DeveloperSiu Yuen HoALG Software Lab

In-app purchases

1 purchases

Voltage Regulator

One-time1
  • Unlock Pro features$1.99
None

Learn ESP32 Programming Pro

No in-app purchases

Questions

Is Voltage Regulator free?
Voltage Regulator is free to download, with in-app purchases available.
Is Learn ESP32 Programming Pro free?
Learn ESP32 Programming Pro costs $4.99, with no in-app purchases.
Do Voltage Regulator or Learn ESP32 Programming Pro have ads?
Neither Voltage Regulator nor Learn ESP32 Programming Pro shows ads.
Which is updated more often, Voltage Regulator or Learn ESP32 Programming Pro?
Voltage Regulator ships an update every 9 months, and Learn ESP32 Programming Pro monthly. Most recently, Voltage Regulator was updated on September 16, 2026 and Learn ESP32 Programming Pro on September 16, 2026.

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