PromptMaster vs Voltage Divider Calc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PromptMaster
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Transform your AI conversations with PromptMaster, your personal library of expertly crafted prompts for ChatGPT and other AI assistants. Whether you're a developer, writer, analyst, or creative professional, PromptMaster helps you get the most out of AI tools. KEY FEATURES: • Curated Prompt Collection Browse through a diverse collection of high-quality prompts, categorized for different use cases including development, writing, analysis, business, education, and creative tasks. • Daily Prompts (Premium) Get fresh, personalized prompt suggestions every day, handpicked to match your interests and usage patterns. • Smart Organization - Easily browse prompts by category - Save your favorite prompts for quick access - Search functionality to find the perfect prompt - Share prompts with colleagues and friends • Professional Categories - Development: Code generation, debugging, and architecture prompts - Writing: Content creation, editing, and style enhancement - Analysis: Data interpretation and research assistance - Business: Strategy, marketing, and professional communication - Education: Learning materials and teaching assistance - Creative: Brainstorming and artistic inspiration • Premium Features - Access to Daily Prompts - Unlimited favorites - Share prompts with others - Early access to new features - Premium support Perfect for: • Developers seeking code assistance • Writers crafting content • Analysts processing data • Business professionals • Educators and students • Creative professionals • Anyone working with AI tools Terms of Use(EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Voltage Divider Calc
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Voltage Divider Calculator is a practical electronics tool for quickly calculating resistor divider circuits, output voltage, input voltage, and resistor values. Built for students, makers, technicians, and electrical engineers, it helps you solve common voltage divider problems with a clear interface and fast, reliable results. Whether you are designing an Arduino input circuit, scaling a sensor signal, choosing resistor values for a reference voltage, learning basic electronics, or checking a circuit before building it, this app gives you the numbers you need without extra complexity. Calculate voltage divider results from known resistor and voltage values, explore different calculation modes, and work with common resistor units such as ohms, kilo-ohms, and mega-ohms. The app is designed to make everyday electronics calculations easier, especially when switching between units or comparing circuit options. Key features include: • Calculate voltage divider output voltage • Solve for input voltage, R1, or R2 depending on your circuit need • Support for common resistor units • Clean input fields for fast calculation • Presets for commonly used resistor values • Calculation history for reviewing previous results • Circuit diagram view for easier understanding • Educational reference content for learning how voltage dividers work • Locale-aware number input for international users • Simple, focused design for electronics work Voltage dividers are widely used in analog circuits, embedded systems, microcontroller projects, battery monitoring, sensor interfacing, signal scaling, reference voltage generation, and many other electronics applications. This calculator helps reduce manual math and makes it easier to test resistor combinations before committing to a circuit. For students, the app provides a convenient way to understand the relationship between input voltage, output voltage, R1, and R2. For engineers and hobbyists, it works as a fast pocket reference when designing or debugging circuits. Use Voltage Divider Calculator when you need to: • Step down a voltage for a microcontroller input • Estimate sensor output scaling • Choose resistor values for a target voltage • Verify circuit calculations • Compare divider ratios • Learn and apply the voltage divider formula • Save and revisit previous calculations The app focuses on clarity, speed, and accuracy, making it suitable for classroom learning, lab work, electronics repair, prototyping, and PCB design preparation. It keeps the workflow simple: enter your values, choose the calculation mode, review the result, and continue designing. Voltage Divider Calculator is a useful companion for anyone working with electronics, circuit design, electrical engineering, Arduino projects, Raspberry Pi hardware, embedded systems, analog circuits, or resistor networks. Thanks for your support and do visit nitrio.com for more apps for your iOS devices.
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Verdict
The clearest difference is price: PromptMaster at Free against Voltage Divider Calc's $2.99. Voltage Divider Calc'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
PromptMaster is free to download; Voltage Divider Calc costs $2.99 up front. PromptMaster sells 2 in-app purchases, starting at $1.99 per month. Voltage Divider Calc asks for nothing beyond the download.
| Parameter | PromptMaster | Voltage Divider Calc |
|---|---|---|
| Price | Free — better | $2.99 |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.2 | 17.6 — better |
| Further details — not scored | ||
| Size | 8 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Elena Kryvytska | Nitrio |
In-app purchases
PromptMaster
- Monthly Premium$1.991 Month
- Annual Premium$14.991 Year
Voltage Divider Calc
No in-app purchases
Questions
Is PromptMaster free?
Is Voltage Divider Calc free?
Do PromptMaster or Voltage Divider Calc have ads?
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