Polata vs Hydraulic ToolKit
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Polata
This application simplifies linear interpolation and extrapolation with a minimalist interface. It displays the linear equation for your data points. Developed by Joey La Barck and updated by Kevin Meglathery.
- Linear interpolation
- Linear extrapolation
- Minimalist interface
- Displays linear equation
- Data point analysis
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A super simple linear interpolation and extrapolation app. The minimal interface also provides the linear equation of the corresponding data points. The app was developed by Joey La Barck. Updated by Kevin Meglathery.
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 update cadence: Hydraulic ToolKit at monthly against Polata's every 42 months. Polata's advantage is ratings volume (3 vs 1) and iOS requirement (9.0 vs 15.1). On price, rating, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Polata against 5.0 for Hydraulic ToolKit. Both are backed by a comparable volume of ratings — 3 and 1 respectively.
Polata ships an update every 42 months, Hydraulic ToolKit monthly. The most recent releases landed on October 14, 2026 and October 11, 2026 respectively.
| Parameter | Polata | Hydraulic ToolKit |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) | 5.0 (1 ratings) |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 3 — better | 1 |
| Update frequency | Every 42 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 9.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 1 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | Smitesh Bakrania | Wade Trim Group, Inc. |
Customer experience
Polata
Hydraulic ToolKit
In-app purchases
Polata
No in-app purchases
Hydraulic ToolKit
No in-app purchases
Questions
Is Polata free?
Is Hydraulic ToolKit free?
Which has better reviews, Polata or Hydraulic ToolKit?
Do Polata or Hydraulic ToolKit have ads?
Which is updated more often, Polata or Hydraulic ToolKit?
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