Comparison

Phymetrix Calculator vs Megatuner Plus

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

Head to head
About

Phymetrix Calculator

This utility app simplifies moisture calculations by converting between various units and determining dew points and partial water vapor pressures. It's pre-programmed with essential scientific equations for common gases, making complex calculations straightforward.

Highlights
  • Moisture unit conversion
  • Dew point calculation
  • Partial water vapor pressure calculation
  • Pre-programmed scientific equations
  • Supports common gases
  • User-friendly interface
Features
Read full description

The Phymetrix Moisture Calculator will allow you to quickly convert between different moisture concentration units as well as easily obtain dew points and partial water vapor pressures at different total pressures. The Dew Point Calculator is pre-programmed with all the pertinent dew point equations from Physical Chemistry and Thermodynamics and the molecular weights of the most commonly used gases. All you have to do is plug in your numbers; science made simple! Keywords: moisture units conversion calculator, dewpoint units conversion calculator, unit conversion, moisture calculator, dew point calculator, moisture conversion, ppm to dew point conversion calculator, ppm/dewpoint to lbs-H2O conversion calculator

About

Megatuner Plus

Features
Read full description

Introducing an Advanced PID Controller Tuner for iOS. The Megatunes Plus app makes the tuning of your PI/PID controllers of (generally) noisy & possible interacting process loops easier. 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. Example processes: Chemical processing plants, Power Plants, ship position control, to mention some. Features: * Advanced PI/PID Controller Tuner for generally noisy & possible interacting process loops. * User-friendly interface for simple and efficient data input and analysis * Advanced algorithms for accurate and precise model and 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

Phymetrix Calculator4 screens
Megatuner Plus4 screens

Verdict

The call

The clearest difference is in-app purchases: Phymetrix Calculator at none against Megatuner Plus's 2. Phymetrix Calculator also leads on iOS requirement (14.0 vs 16.0). Megatuner Plus's advantage is update cadence (every 5 weeks vs every 52 months). On price, 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

Both are free to download. Megatuner Plus sells 2 in-app purchases, starting at $4.49 per month. Phymetrix Calculator asks for nothing beyond the download.

UpkeepUpdate frequency

Phymetrix Calculator ships an update every 52 months, Megatuner Plus every 5 weeks. The most recent releases landed on June 10, 2026 and September 15, 2026 respectively.

Scorecard3 real differences · 7 level
Phymetrix Calculator versus Megatuner Plus: the parameters behind the verdict, then further details
ParameterPhymetrix CalculatorMegatuner Plus
PriceFreeFree
Rating5.0 (2 ratings) — better
Positive reviews100.0% of reviews
Number of ratings2 — better
Update frequencyEvery 52 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree
DevicesiPhone, iPodiPhone, iPad
Requires iOS14.0 — better16.0
Further details — not scored
Size1 MB1 MB
Age rating4+17+
DeveloperAlexander BedrossianChrister Dalen

In-app purchases

None

Phymetrix Calculator

No in-app purchases

2 purchases

Megatuner Plus

Subscriptions2
  • Megatuner_Mimo Full$4.491 Month
  • Megatuner_Mimo Full$44.901 Year

Questions

Is Phymetrix Calculator free?
Phymetrix Calculator is free to download, with no in-app purchases.
Is Megatuner Plus free?
Megatuner Plus is free to download, with in-app purchases available.
Do Phymetrix Calculator or Megatuner Plus have ads?
Neither Phymetrix Calculator nor Megatuner Plus shows ads.
Which is updated more often, Phymetrix Calculator or Megatuner Plus?
Phymetrix Calculator ships an update every 52 months, and Megatuner Plus every 5 weeks. Most recently, Phymetrix Calculator was updated on June 10, 2026 and Megatuner Plus on September 15, 2026.

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