Comparison

Touch Fluids vs Hydraulic ToolKit

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

Head to head
About

Touch Fluids

An educational tool for fluid mechanics courses, featuring basic equations and animations. It covers topics from fluid statics to flow in pipes, suitable for high school and university students. Teachers can use it to present concepts in class.

Highlights
  • Basic fluid mechanics equations
  • Illustrative animations
  • Fluid statics
  • Fluid in motion
  • Continuity and energy equations
  • Flow in pipes
  • Vector operations
Features
Read full description

Touch Fluids is an educative iPhone application in support to an high-school or university course of fluid mechanics. It contains not only a memorandum of the basic equations, but it also contains several animations illustrating the various concepts of fluid mechanics. This application runs also on iPad and iPod Touch. 50 screens of physics! For teachers !! Connect your iPad with a video projector and show the animations to your students in classroom. List of covered subjects: Fluid Statics - Fluid Properties, - Pressure, - Fluid Forces. Fluid in mouvement - Approaches, - Kinematics, - Type of flow - Transport Equation. Continuity Equation - Continuity Equation, - Incompressible and Stationnary flow, - Differential Form, Energy Equation - Fluid Energie, - General Energy Equation. Linear Momentum - Momentum Equation, - Differential Form. Flow in Pipes - Lost Head, - Minor Lost Head. Appendices - Vector Operations - Vector Identities.

About

Hydraulic ToolKit

Perform essential hydraulic calculations for water infrastructure design on the go. This portable tool offers quick checks for engineers and students, covering common formulas for pipes, channels, and more.

Highlights
  • Perform 7 hydraulic formulas
  • Supports imperial and metric systems
  • Quick calculation checks
  • Portable tool for field use
  • Reference hydraulic coefficients
Read full description

Designing infrastructure that conveys and stores water relies on sound hydraulic calculations to determine where the flow goes, how deep it is, and how fast it’s moving for safe and efficient operations. From pipes and channels to weirs, orifices, and watersheds, engineers routinely apply hydraulic equations to size components and verify performance. Developed by Wade Trim engineers, the Hydraulic ToolKit app allows users to perform everyday hydraulic calculations anytime, anywhere. While software and spreadsheets are typically used to perform hydraulic calculations, the process often takes place using a computer in the office. This free app is a simple and portable tool to make quick calculations more convenient. Hydraulic coefficients required to perform the calculations can also be referenced. Common uses include verifying a basic hydraulic understanding during a meeting for a school or work project, or checking performance in the field during site observation or startup. Seven hydraulic formulas (Rational Formula, Rectangular Weir Formula, Circular Orifice Flow, Full Circular Pipe Flow, Velocity in a Circular Pipe, Trapezoidal Channel, Rectangular Conduit Full Flow) can be calculated using the imperial or metric system. The Hydraulic ToolKit app is intended for quick and basic calculation checks that do not replace detailed design analyses.

Screenshots

Touch Fluids4 screens
Hydraulic ToolKit4 screens

Verdict

The call

The clearest difference is price: Hydraulic ToolKit at Free against Touch Fluids's $0.99. Hydraulic ToolKit also leads on update cadence (monthly vs every 13 months) and iOS requirement (15.1 vs 17.2). 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

CostPrice · In-app purchases · Ads · Monetization

Hydraulic ToolKit is free to download; Touch Fluids costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Touch Fluids against 5.0 for Hydraulic ToolKit. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

Touch Fluids ships an update every 13 months, Hydraulic ToolKit monthly. The most recent releases landed on October 13, 2026 and October 11, 2026 respectively.

Scorecard4 real differences · 6 level
Touch Fluids versus Hydraulic ToolKit: the parameters behind the verdict, then further details
ParameterTouch FluidsHydraulic ToolKit
Price$0.99Free — better
Rating5.0 (1 ratings)5.0 (1 ratings)
Positive reviews60.0% of reviews—
Number of ratings11
Update frequencyEvery 13 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.215.1 — better
Further details — not scored
Size15 MB23 MB
Age rating4+4+
DeveloperXavier DaxheletWade Trim Group, Inc.

Customer experience

Touch Fluids

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive60.0%
Neutral0.0%
Negative40.0%

Hydraulic ToolKit

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Touch Fluids

No in-app purchases

None

Hydraulic ToolKit

No in-app purchases

Questions

Is Touch Fluids free?
Touch Fluids costs $0.99, with no in-app purchases.
Is Hydraulic ToolKit free?
Hydraulic ToolKit is free to download, with no in-app purchases.
Which has better reviews, Touch Fluids or Hydraulic ToolKit?
Touch Fluids and Hydraulic ToolKit are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do Touch Fluids or Hydraulic ToolKit have ads?
Neither Touch Fluids nor Hydraulic ToolKit shows ads.
Which is updated more often, Touch Fluids or Hydraulic ToolKit?
Touch Fluids ships an update every 13 months, and Hydraulic ToolKit monthly. Most recently, Touch Fluids was updated on October 13, 2026 and Hydraulic ToolKit on October 11, 2026.

Other comparisons