HydroCalc Plus vs BeautyRecording
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HydroCalc Plus
A professional tool for hydraulic engineers to calculate pressure losses in piping systems. It supports US and SI units, offers an extensive pipe material and fittings database, and includes inverse calculations for design optimization.
- Friction head loss calculation (Hazen-Williams)
- US and SI unit support
- Extensive pipe material library
- Fittings and valves database
- Inverse calculation mode
- Real-time results (velocity, losses)
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Professional hydraulic engineering tool for calculating pressure losses in piping systems. Essential for engineers, plumbers, and contractors designing water distribution networks. Key Features: Calculate friction head losses using industry-standard Hazen-Williams equation Support for both US (ft, gpm, psi) and SI (m, lps, bar) units Extensive pipe material library with pre-defined roughness coefficients (C-factors) Complete fittings and valves database including elbows, tees, valves, contractions, and expansions Inverse calculations to determine optimal pipe diameter, flow rate, or length for target head loss Real-time results showing velocity, friction loss, minor losses, and total system head loss What Sets Pro Apart: Unlike basic calculators, HydroCalc Pro accounts for both major losses (pipe friction) and minor losses (fittings and valves). The app includes a comprehensive database of K-factors for various components, allowing accurate total system pressure loss calculations. Perfect For: Water supply system design Irrigation network planning HVAC piping calculations Fire protection systems Industrial fluid transport Educational purposes in hydraulic engineering Technical Capabilities: The app considers all critical factors affecting pressure loss: flow velocity, pipe diameter, internal roughness, pipe length, and fitting configurations. Materials include PVC, polyethylene, steel, cast iron, concrete, and more with accurate C-factors ranging from 120-150. Inverse Calculation Mode: Unique feature allowing backward calculations - determine required pipe size for allowable head loss, maximum flow capacity, or optimal pipe length for your system constraints. Simple, intuitive interface with instant results. No internet connection required. Professional-grade calculations in your pocket. Note: Premium modules are available in English and Spanish.
BeautyRecording
This app offers a simple and visually appealing way to record audio with a customizable interface. Switch between multiple sweet-themed skins to personalize your recording experience. It's designed for quick, high-definition audio capture for various needs, from personal notes to lectures.
- High-definition voice recording
- Multiple customizable skins
- Simple one-tap operation
- Easy sharing of recordings
- Fresh and sweet interface style
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In the busy life, girls always need a handy voice recording app, and this one is perfect! It has an appealing appearance with a fresh and sweet interface style. There are multiple carefully designed skins to switch freely, making every opening a pleasant experience. The operation is extremely simple - no complicated learning is required. With just a tap of your finger, you can start high-definition recording with one click, accurately capturing every detail of sound. Whether it's recording the happy moments of a gathering with girlfriends or saving important course and lecture contents, it can easily handle them and is convenient to share.
Screenshots
Verdict
The clearest difference is in-app purchases: BeautyRecording at none against HydroCalc Plus's 4. BeautyRecording also leads on update cadence (every 4 days vs every 3 weeks) and ratings volume (3 vs 1). HydroCalc Plus's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 17.6). On rating, ads and monetization model 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
HydroCalc Plus costs $3.99 and BeautyRecording $2.99 up front. HydroCalc Plus sells 4 one-off in-app purchases. BeautyRecording asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for HydroCalc Plus against 5.0 for BeautyRecording. Both are backed by a comparable volume of ratings — 1 and 3 respectively.
HydroCalc Plus ships an update every 3 weeks, BeautyRecording every 4 days. The most recent releases landed on October 4, 2026 and October 15, 2026 respectively.
| Parameter | HydroCalc Plus | BeautyRecording |
|---|---|---|
| Price | $3.99 | $2.99 — better |
| Rating | 5.0 (1 ratings) | 5.0 (3 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 | 3 — better |
| Update frequency | Every 3 weeks | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 17.6 |
| Further details — not scored | ||
| Size | 34 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Transparent Blue Water LLC | 莉 朱 |
Customer experience
HydroCalc Plus
BeautyRecording
In-app purchases
HydroCalc Plus
- Pump Power Calculator$1.99
- System Curve Generator$1.99
- Pipe Database$1.99
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- Industrial Fluids Pack$2.99
BeautyRecording
No in-app purchases








