dBMeter Pro vs Hydraulic Pressure Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
dBMeter Pro
This application transforms your iPhone into a sound level meter for analyzing ambient noise or testing audio equipment. It offers dual-input measurement, a contextual reference guide, and long-term data logging up to 12 hours. Data can be exported for further analysis.
- Dual-input measurement
- Contextual reference guide
- Long-term data logging
- CSV data export
- External microphone support
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Transform your iPhone into a powerful sound level meter with dBMeter Pro. Whether you are analyzing ambient noise, testing audio equipment, or simply curious about your environment, dBMeter Pro delivers accurate decibel readings with an intuitive interface. Key Capabilities: - Dual-Input Measurement: Seamlessly switch between the iPhone’s built-in microphone for quick checks or connect external measuring microphones for enhanced precision. - Contextual Reference Guide: Don’t just read numbers—understand them. Our visual reference view compares current noise levels to real-world examples (like a library, traffic, or a rock concert) for instant context. - Long-Term Data Logging: Need to monitor noise over time? Record up to 12 hours of continuous samples. - Data Export: Easily export your sessions as CSV files for deep-dive analytics and archiving. Important Note: While dBMeter Pro has been calibrated using professional-grade equipment to ensure high accuracy, it is intended for personal and educational use only. It should not be used as a substitute for certified industrial equipment for professional or legal measurements. The author assumes no liability for damages arising from the use of this software.
Hydraulic Pressure Calculator
This physics and math calculator determines the force generated by a piston-cylinder based on pneumatic or hydraulic pressure and bore diameter. It provides instant calculations with copyable results and includes reference formulas. Supports various units and high decimal precision.
- Instant calculation
- Copyable results
- Included formulas
- Supports 16 decimal places
- Multiple unit support
- Lightweight and optimized
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Hydraulic Pressure Calculator is a physics/math calculator designed to find the force generated by a piston-cylinder for a specified pneumatic/hydraulic pressure and piston-cylinder bore diameter. Features: - Instant calculation. - Results are copyable to other apps. - Formulas are included as references. - Supports up to 16 decimal places. - Supports various units for each input. - Lightweight app with a small size, optimized for everyday use. The basic principle of the hydraulic press is based on Pascal's law. Pascal's law is a principle in fluid mechanics that states a pressure change occurring anywhere in a confined, incompressible fluid is transmitted throughout the fluid, causing the same change everywhere. Pascal's principle is used in many hydraulic systems, such as hydraulic presses. The Hydraulic Pressure Calculator computes suitable parameters for both pistons in the hydraulic press. Pascal's Law Formula: F₁ = A₁ / A₂ * F₂ p = F₁ / A₁ where: F₁ - Force applied to the first piston. F₂ - Force applied to the second piston. A₁ - Area of the first piston. A₂ - Area of the second piston. p - Pressure of the liquid inside the hydraulic press. Thanks for your support, and please do visit nitrio.com for more apps for your iOS devices.
Screenshots
Verdict
dBMeter Pro and Hydraulic Pressure Calculator both sit at 5.0 stars, but that hides the real split: 57% of dBMeter Pro's written reviews are positive against 0% of Hydraulic Pressure Calculator's. dBMeter Pro also leads on update cadence (every 5 months vs every 27 months). Hydraulic Pressure Calculator's advantage is price ($2.99 vs $5.99) and device support (3 vs 1). On rating, ratings volume, ads and in-app purchases 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
dBMeter Pro costs $5.99 and Hydraulic Pressure Calculator $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for dBMeter Pro against 5.0 for Hydraulic Pressure Calculator. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews are what separate them: 57% of dBMeter Pro's written reviews are positive against 0% of Hydraulic Pressure Calculator's.
dBMeter Pro ships an update every 5 months, Hydraulic Pressure Calculator every 27 months. The most recent releases landed on October 31, 2026 and November 2, 2026 respectively.
| Parameter | dBMeter Pro | Hydraulic Pressure Calculator |
|---|---|---|
| Price | $5.99 | $2.99 — better |
| Rating | 5.0 (2 ratings) | 5.0 (1 ratings) |
| Positive reviews | 56.7% of reviews — better | 0.0% of reviews |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 5 months — better | Every 27 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 13 — better |
| Further details — not scored | ||
| Size | 6 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Matthias Schorer | Nitrio |
Customer experience
dBMeter Pro
Hydraulic Pressure Calculator
In-app purchases
dBMeter Pro
No in-app purchases
Hydraulic Pressure Calculator
No in-app purchases
Questions
Is dBMeter Pro free?
Is Hydraulic Pressure Calculator free?
Which has better reviews, dBMeter Pro or Hydraulic Pressure Calculator?
Do dBMeter Pro or Hydraulic Pressure Calculator have ads?
Which is updated more often, dBMeter Pro or Hydraulic Pressure Calculator?
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