Comparison

Gas vs SideBrain

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

Head to head
About

Gas

Features
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The application allows the user to solve most of gas transportation problems, calculate the process of transporting natural gas (steam phase of LNG, LPG, associated petroleum gas, biogas) through a single-line pipeline. The graphical representation allows to instantly find the optimal solution and determine the influence of various factors on the gas transportation process. The application can help the user to get a calculation result that is sufficient for making an estimated engineering decision. Scope of application • Distribution and internal gas supply systems • Main-gas transport • Gas distribution and gas collection networks Key Features Using the application can be calculated: • gas flow rate in the pipeline for a given pressure drop and geometric characteristics of the pipeline • pressure drop in the gas pipeline (final or initial pressure) for a given flow rate and pressure drop • the length of the gas pipeline that provides a specified gas flow rate for a given pressure drop and diameter of the gas pipeline • the required diameter of the gas pipeline, which provides a specified gas flow rate for a given pressure drop and length of the gas pipeline • the blowdown time for stopped section of gas pipeline • the required power of the gas compressor, which provides the necessary degree of pressure increase for a specified natural gas flow rate. The compression process is adiabatic. The calculation can be performed for a single-or multi-stage compressor. The application uses: General Fundamental Isothermal Flow Equation (the basic equation of gas flow), American Gas Association Equation (AGA NB-13 method), Weymouth Isothermal Flow Equation, Panhandle A Isothermal Flow Equation. Panhandle B Isothermal Flow Equation, Institute of Gas Technology Isothermal Flow Equation. The user can choose one of them. The properties of the transported gas are determined on base of its composition. The user can select the gas composition from the previously entered ones, edit, add a new one, or delete the previously entered gas composition. The user can also select the pipe wall material and, accordingly, the absolute roughness value from the previously entered ones, edit, add a new value, or delete the previously entered material name and roughness value. For the convenience of calculations, the application provides a wide range of applicable units of measurement, as well as standard conditions for measuring gas flow. The accuracy of the calculation methods used in the application corresponds to or exceeds the accuracy of the methods for obtaining initial data available in engineering practice. The data entered by the user is saved and transferred between the calculation forms, which allows the user to quickly consider the problem of calculating the parameters of the gas pipeline from all sides. The results can be saved as a pdf file, as well as printed out. Terms of use: https://www.gas-main.info/#terms-of-use Privacy Policy: https://www.gas-main.info/#privacy-policy

About

SideBrain

This AI-powered tool provides instant homework assistance and math tutoring. Scan problems, receive step-by-step solutions, and engage with interactive lessons across various subjects. It's designed to make learning more efficient and enjoyable for students.

Highlights
  • AI Homework Assistant
  • Scan and Solve problems
  • Step-by-step math solutions
  • Interactive learning lessons
  • Comprehensive study tool
  • 24/7 availability
Features
Read full description

Unlock the full potential of your learning with SideBrain, the ultimate AI-powered tutor and math helper designed to make your academic journey smoother and more efficient. Whether you're tackling tough homework assignments, solving complex math problems, or seeking a reliable study companion, SideBrain is here to assist you every step of the way. Key Features: AI Homework Assistant: Get instant help with your homework. Our advanced AI provides accurate solutions and explanations to a wide range of subjects. Tutor & Math Helper: Struggling with math? SideBrain offers step-by-step solutions to math problems, helping you understand and master concepts with ease. Scan and Solve: Simply scan your homework questions or math problems, and let SideBrain do the rest. Our app quickly analyzes and solves them, providing clear and concise answers. Interactive Learning: Enhance your understanding with interactive lessons and personalized tutoring. SideBrain adapts to your learning pace and style, ensuring effective learning. Comprehensive Study Tool: From math and science to language arts, SideBrain covers all major subjects. Get detailed explanations, study guides, and practice exercises to boost your grades. User-Friendly Interface: Enjoy a seamless and intuitive user experience. SideBrain is designed to be easy to use, making learning fun and engaging. 24/7 Availability: Your personal tutor is available anytime, anywhere. Access SideBrain whenever you need help, and never miss a study session. Why Choose SideBrain? SideBrain is more than just a homework helper—it's a comprehensive learning assistant that empowers students to excel academically. With its cutting-edge AI technology and user-centric design, SideBrain transforms the way you study, making education accessible, enjoyable, and effective. Download SideBrain today and experience the future of learning. Elevate your academic performance and gain the confidence to tackle any challenge with your new study companion. Terms of Use: https://studyx-d416b.web.app/terms.html Privacy Policy: https://studyx-d416b.web.app/privacy.html

Screenshots

Gas4 screens
SideBrain3 screens

Verdict

The call

The clearest difference is iOS requirement: Gas at 13.4 against SideBrain's 16.7.10. On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Gas sells 1 one-off in-app purchase and SideBrain sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 6 months. The most recent releases landed on November 7, 2026 and October 30, 2026 respectively.

Scorecard1 real difference · 8 level
Gas versus SideBrain: the parameters behind the verdict, then further details
ParameterGasSideBrain
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 6 monthsEvery 6 months
AdsNoNo
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.4 — better16.7.10
Further details — not scored
Size10 MB14 MB
Age rating4+4+
DeveloperIurii DubrovAppside

In-app purchases

1 purchases

Gas

One-time1
  • Get full App version$7.99
2 purchases

SideBrain

Subscriptions2
  • Weekly Pro Access$4.997 Days
  • Annual Pro3 Days trial$24.991 Year

Questions

Is Gas free?
Gas is free to download, with in-app purchases available.
Is SideBrain free?
SideBrain is free to download, with in-app purchases available.
Do Gas or SideBrain have ads?
Neither Gas nor SideBrain shows ads.
Which is updated more often, Gas or SideBrain?
Gas ships an update every 6 months, and SideBrain every 6 months. Most recently, Gas was updated on November 7, 2026 and SideBrain on October 30, 2026.

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