Ohmulator vs Golden Ratio Calculator Plus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ohmulator
This electric circuit calculator simplifies Ohm's Law calculations. It allows users to input two known variables (current, resistance, voltage, or power) and automatically computes the unknown values. The app also supports on-the-fly unit adjustments, eliminating the need for manual conversions.
- Ohm's Law calculations
- Calculate unknown variables
- Adjustable unit types
- Total resistance calculator
- Supports Voltage, Current, Resistance, Power
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Makes Ohm's Law simple! Ohmulator is a simple, yet robust, electric circuit calculator that enables you to quickly find the unknown variables of a circuit. Ohmulator allows you to easily adjust unit types on the fly (eg. milli Amps, Amps, kilo Amps), which means no prior conversion! Enter two known variables (from: I = Current, R = Resistance, V = Voltage, P = Power), set preferred units, then Ohmulator will calculate and return the previously unknown values. Also an effective (total) resistance calculator. What two App Store reviewers had to say about Ohmulator: "Great. Does what it says. Very good app. Stylish design." 5 Stars - Jamie1990jamie "Awesome app. It simply works. A must have for the radioamateur or electronic nerd. Nice to have the watt law as well." 5 Stars - Per67 Also available for macOS on the Mac App Store.
Golden Ratio Calculator Plus
This utility app helps designers, architects, and photographers calculate and apply the golden ratio in their work. It offers tools for proportion calculations, Fibonacci sequences, and design presets for spacing, typography, and image cropping.
- Golden Ratio calculations
- Fibonacci sequence generator
- Design presets (spacing, typography, cropping)
- Visual golden spiral and segment bar
- Calculation history
- Reference guide
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Golden Ratio Calculator is the essential tool for designers, architects, photographers, and anyone who works with proportions. Instantly calculate golden ratio values, explore the Fibonacci sequence, and apply phi-based design presets — all in one beautiful, easy-to-use app. GOLDEN RATIO CALCULATOR Enter any value as the total length (a+b), the longer side (a), or the shorter side (b) — results update instantly. See the golden segments visualized with a proportional color bar, the iconic golden spiral, and step-by-step calculation breakdowns showing a/b and (a+b)/a converging to 1.618. Tap any result to copy. Supports px, mm, cm, and % units. FIBONACCI SEQUENCE Generate up to 40 Fibonacci numbers and watch the consecutive ratios converge toward phi. Color-coded indicators show how close each ratio is to the true golden ratio — a perfect way to understand the deep connection between Fibonacci and phi. DESIGN PRESETS Put the golden ratio to work in real projects: • Golden Spacing — Set a base value and see margins and padding scaled by phi, phi², phi³, and phi⁴. Editable base for quick iteration. • Typography Scale — Enter a base font size and get a complete type hierarchy scaled by the golden ratio, from Body to Display. • Image Cropping — Switch between width and height input, then see auto-calculated dimensions for golden landscape (1.618:1), golden portrait (1:1.618), and phi panorama (2.618:1) crops. CALCULATION HISTORY Every calculation you save is stored with its a+b, a, and b values for quick reference. Swipe to delete individual entries or clear all at once. REFERENCE GUIDE A built-in reference sheet covers everything you need: what the golden ratio is, its mathematical formula, key properties (phi² = phi + 1, 1/phi = phi − 1), the Fibonacci connection, golden rectangle and sidebar layout ratios, and real-world design applications in typography, layout, photography, and UI design. WHY GOLDEN RATIO CALCULATOR? • Real-time results — no calculate button needed • Visual segment bar and golden spiral illustration • Three input modes: total, side a, or side b • Tap-to-copy on result • Supports multiple units (px, mm, cm, %) • Works on iPhone and iPad • Clean, intuitive interface designed with the golden ratio itself Whether you are sizing UI components, choosing font scales, cropping images, or simply exploring one of mathematics' most fascinating numbers, Golden Ratio Calculator gives you precise answers in seconds. Download now and bring the beauty of phi into your workflow. Thanks for your support and do visit nitrio.com for more apps for your iOS devices.
Screenshots
Verdict
The clearest difference is rating: Ohmulator at 4.7 against Golden Ratio Calculator Plus's 2.3. Ohmulator also leads on update cadence (every 2 months vs every 22 months) and ratings volume (79 vs 3). On ads, in-app purchases 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
Ohmulator costs $0.99 and Golden Ratio Calculator Plus $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Ohmulator holds the better App Store score, 4.7 against 2.3. That said, the two scores are not equally well evidenced: Ohmulator has 79 ratings behind it against 3, so its average is the more settled of the two.
Ohmulator ships an update every 2 months, Golden Ratio Calculator Plus every 22 months. The most recent releases landed on October 13, 2026 and October 16, 2026 respectively.
| Parameter | Ohmulator | Golden Ratio Calculator Plus |
|---|---|---|
| Price | $0.99 — better | $2.99 |
| Rating | 4.7 (79 ratings) — better | 2.3 (3 ratings) |
| Positive reviews | 81.1% of reviews | — |
| Number of ratings | 79 — better | 3 |
| Update frequency | Every 2 months — better | Every 22 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Best chart rank | #190 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 10.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 5 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Armchair Engineering | Heng Jia Liang |
Customer experience
Ohmulator
Golden Ratio Calculator Plus
In-app purchases
Ohmulator
No in-app purchases
Golden Ratio Calculator Plus
No in-app purchases
Questions
Is Ohmulator free?
Is Golden Ratio Calculator Plus free?
Which has better reviews, Ohmulator or Golden Ratio Calculator Plus?
Do Ohmulator or Golden Ratio Calculator Plus have ads?
Which is updated more often, Ohmulator or Golden Ratio Calculator Plus?
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