Compressible Gas Flow Calc vs Turbo Forms
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Compressible Gas Flow Calc
Calculates pressure drops and flow rates for compressible gas flow in pipes. Offers three modes: calculate inlet pressure, outlet pressure, or flow rate. Supports custom pipe sizes and a database of over 20 gases.
- Calculate inlet pressure
- Calculate outlet pressure
- Calculate flow rate
- Standard and custom pipe sizes
- Database of 20+ gases
- Imperial or SI units
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This app does one thing, but it does it well. It will calculate the pressure drops and flow rates for compressible gas flow in a pipe. This app is different from other pressure drop apps in that it does not restrict the results to a certain pressure drop, which treat it as a liquid. There are 3 calculation modes that can be used: -Calculate inlet pressure: This is useful when the user knows they need to deliver a certain amount of a gas against a certain back pressure. Such as filling a tank or vessel. -Calculate outlet pressure: This will determine the residual pressure in the gas at the end of a pipe run. -Calculate flow rate: Not much to be said here, enter the pressures and you get the flow rate. We have used this to calculate free flow of high pressure lines, for example if there is a break in a line (outlet pressure is zero). App includes a full database of standard pipe sizes or you can enter your own size using the Custom selection. There are over 20 gases in the database with viscosity as a function of temperature using Lennard-Jones formulation. Results are based on a modified Newton-Raphson iterative method and have been benchmarked against CFD results. Choose between Imperial or SI units.
Turbo Forms
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Empower field workers to collect rich & accurate data on mobile and share data to back-office systems or cloud, and email PDFs to supervisors. It has features like Geo-tagging, barcode scanning, time-stamp, image capture & attachments, automatic calculations, digital signatures, and more. The application supports both offline and online modes of operation and data is automatically synchronized with SAP and other third-party systems when connectivity is available. Turbo Forms Platform- Key Elements 1. Turbo Apps Builder: Use our no-code Turbo Apps Builder with a wide variety of input field types, custom validations, conditional logic, form version control, and repeatable sections to build forms easily without any coding experience. 2. Turbo Forms App: Mobile app for field data collection and data delivery. 3. Visual Workflow Designer: Drag & Drop interface to configure workflows like review & approvals, follow up tasks, send notifications, automate data delivery & custom reports generation. 4. Low-code Integrations: Low-code tools to connect to any ERP system, cloud service, databases, BI, and other systems without any need to migrate data. 5. Reporting & Analytics: Customized dashboards with real-time visibility of your field operations. Get real-time insights from submitted forms data and share actionable insights with the stakeholders for making informed decisions.
Screenshots
Verdict
The clearest difference is price: Turbo Forms at Free against Compressible Gas Flow Calc's $3.99. Turbo Forms also leads on update cadence (every 5 weeks vs every 12 months). On ads, in-app purchases, device support and iOS requirement 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
Turbo Forms is free to download; Compressible Gas Flow Calc costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Compressible Gas Flow Calc ships an update every 12 months, Turbo Forms every 5 weeks. The most recent releases landed on October 11, 2026 and October 25, 2026 respectively.
| Parameter | Compressible Gas Flow Calc | Turbo Forms |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 12 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 54 MB |
| Age rating | 4+ | 4+ |
| Developer | Niagara Mobile LLC | Unvired Inc |
In-app purchases
Compressible Gas Flow Calc
No in-app purchases
Turbo Forms
No in-app purchases







