Graphs and Slopes vs Hydraulic ToolKit
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Graphs and Slopes
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"Graphs and Slopes" explains the concept of linear equations in Math. This app also explains the non linear equation in a nutshell. This app categorizes the graph concept into bite size information. The core points like y-intercepts, slopes and graph plotting are explained with examples. Review questions at the end of the category, asks questions pertaining to these concepts and even has the option to provide hints and answers to reinforce your understanding. Touch the images to zoom-in and out.
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.
- Perform 7 hydraulic formulas
- Supports imperial and metric systems
- Quick calculation checks
- Portable tool for field use
- Reference hydraulic coefficients
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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
Verdict
The clearest difference is price: Hydraulic ToolKit at Free against Graphs and Slopes's $2.99. Hydraulic ToolKit also leads on update cadence (monthly vs every 11 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
Hydraulic ToolKit is free to download; Graphs and Slopes costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Graphs and Slopes ships an update every 11 months, Hydraulic ToolKit monthly. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.
| Parameter | Graphs and Slopes | Hydraulic ToolKit |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | — | 5.0 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Update frequency | Every 11 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 3 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | Gomathy Shankaran | Wade Trim Group, Inc. |
In-app purchases
Graphs and Slopes
No in-app purchases
Hydraulic ToolKit
No in-app purchases
Questions
Is Graphs and Slopes free?
Is Hydraulic ToolKit free?
Do Graphs and Slopes or Hydraulic ToolKit have ads?
Which is updated more often, Graphs and Slopes or Hydraulic ToolKit?
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