Proportions App vs Megatuner
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Proportions App
This utility app quickly calculates unknown values in everyday ratios. It features a clean interface for easy setup and instant results, making it ideal for school, work, or daily tasks.
- Solve proportions instantly
- Quick setup for unknown values
- Clean and minimal interface
- Ideal for everyday use
- Focuses on single-unknown proportions
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Solve proportions in seconds—no hassle, no distractions. Proportions is a lightweight and intuitive tool designed to help you quickly calculate unknown values in everyday ratios. Whether you're studying, cooking, shopping, or working, just set up your proportion, choose where the unknown goes, and get the result instantly. Why you'll love it - Clean and minimal interface: no clutter, just what you need - Quick setup: tap to position the unknown and enter your values - Instant results: calculate with a single tap - Perfect for everyday use: school, work, or daily tasks Simple by design Proportions focuses on doing one thing well: solving single-unknown proportions quickly and efficiently. It’s not meant for complex equations or step-by-step learning—just fast, reliable results when you need them. Feedback & support If you encounter any issues or have suggestions, feel free to reach out—we’re happy to help and continuously improve the app. If you enjoy using Proportions, consider leaving a review—it really helps!
Megatuner
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Introducing our powerful PI/PID controller tuner app for iOS. Our app makes it easy for you to tune your PI/PID controller using data from your control loop experiments. Our advanced algorithms analyze the data to help you find the optimal settings for your controller, ensuring optimal performance and stability. But that's not all. With our app, you can now convert your settings to over 20 different DCS vendors, making it easier than ever to integrate your control loop with the rest of your process control system. Features: * User-friendly interface for simple and efficient data input and analysis * Advanced algorithms for accurate and precise model and PI/PID controller tuning * Convert your PID controller parameters over 20 different DCS vendor forms. Whether you're an experienced engineer or just starting out, our PI/PID controller tuner app for iOS can help you fine-tune your control loop and improve your process control system. Download now and start optimizing your loops today! Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: Megatuner at every 3 weeks against Proportions App's every 41 months. Proportions App's advantage is iOS requirement (14.6 vs 16.0). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Proportions App ships an update every 41 months, Megatuner every 3 weeks. The most recent releases landed on October 16, 2026 and October 27, 2026 respectively.
| Parameter | Proportions App | Megatuner |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 41 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.6 — better | 16.0 |
| Further details — not scored | ||
| Size | 38 MB | 3 MB |
| Age rating | 4+ | 17+ |
| Developer | Paolo Montalto | Christer Dalen |
In-app purchases
Proportions App
No in-app purchases
Megatuner
No in-app purchases
