Pressures vs Pipe Sizer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Pressures
Easily convert pressure measurements between bar, atm, MPa, and psi. This tool offers automatic conversion as you type and allows you to share your results. Its intuitive design ensures a smooth and pleasant user experience.
- Automatic conversion for bar, atm, psi, MPa
- Copy conversion results
- Share conversions
- Intuitive graphics
- Ease of use
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Pressures is the first App that connects 4 more frequently used units of pressure measurement: bar, atm, MPa and psi. An indispensable tool alwayes on hand. Just open the App and start typing the desired value to convert. It will be calculated automatically in all other units. And if you want to share your conversions, it is now possible. [ Features ] • Automatic conversion to the 4 units: bar, atm, psi and MPa • Copy the result to paste everywhere. • Share your conversions. • Intuitive graphics • Ease of use [ Design ] The graphics are perfected to the last detail to make using simple, fluid and pleasant. Optimized for Retina Display on the iPhone and iPad. [ Compatibility ] • Devices: all iPhone, iPad and iPod. • iOS : 9.0 or later. [ Supported languages ] • English, Italian, Spanish, French, German, Portuguese, Dutch, Russian, Chinese and Japanese. [ Support ] If you need help please contact us at info@lionsapp.com, or visit our website www.lionsapp.com If you enjoy the app, don’t forget to give us a review on the App Store.
Pipe Sizer
This utility app assists in selecting appropriate pipe diameters for water systems, supporting both pressure and gravity flow calculations. It offers automatic recommendations based on user-defined limits and incorporates multiple pipe materials and unit systems.
- Pressure pipe sizing
- Gravity pipe sizing
- Automatic pipe size recommendations
- Multiple pipe material support
- SI and Imperial units
- Hazen-Williams and Manning equations
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PipeSizer helps you quickly choose the right pipe diameter for water systems — for both pressure and gravity flow. PRESSURE PIPE SIZING • Size pipes from a target flow rate. • Set your maximum friction rate and velocity limits. • Calculations based on the Hazen-Williams equation. GRAVITY PIPE SIZING • Size pipes from a target flow rate. • Evaluate flow capacity and velocity under gravity conditions. • Calculations based on the Manning equation. KEY FEATURES • Automatic recommended pipe size based on your limits. • Multiple pipe materials with built-in coefficients (more added over time). • Works in both SI and Imperial (I-P) units. • Designed for engineers, plumbers, and irrigation/drainage design workflows. Feedback is welcome — it directly shapes upcoming updates.
Screenshots
Verdict
Pressures and Pipe Sizer both sit at 5.0 stars, but that hides the real split: 100% of Pipe Sizer's written reviews are positive against 75% of Pressures's. Pressures's advantage is update cadence (every 14 months vs every 27 months) and iOS requirement (9.0 vs 17.6). On price, rating, ratings volume and ads 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
Pressures costs $0.99 and Pipe Sizer $0.99 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 Pressures against 5.0 for Pipe Sizer. Both are backed by a comparable volume of ratings — 2 and 3 respectively. Written reviews are what separate them: 75% of Pressures's written reviews are positive against 100% of Pipe Sizer's.
Pressures ships an update every 14 months, Pipe Sizer every 27 months. The most recent releases landed on October 8, 2026 and October 11, 2026 respectively.
| Parameter | Pressures | Pipe Sizer |
|---|---|---|
| Price | $0.99 | $0.99 |
| Rating | 5.0 (2 ratings) | 5.0 (3 ratings) |
| Positive reviews | 75.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 2 | 3 — better |
| Update frequency | Every 14 months — better | Every 27 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 9.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 21 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | LionsApp di Nallbati Elton | Wassim Murr |
Customer experience
Pressures
Pipe Sizer
In-app purchases
Pressures
No in-app purchases
Pipe Sizer
No in-app purchases
Questions
Is Pressures free?
Is Pipe Sizer free?
Which has better reviews, Pressures or Pipe Sizer?
Do Pressures or Pipe Sizer have ads?
Which is updated more often, Pressures or Pipe Sizer?
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