Comparison

Polata 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

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.

Highlights
  • Linear interpolation
  • Linear extrapolation
  • Minimalist interface
  • Displays linear equation
  • Data point analysis
Features
Read full description

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.

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

Polata1 screens
Hydraulic ToolKit4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. 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 Polata against 5.0 for Hydraulic ToolKit. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

UpkeepUpdate frequency

Polata ships an update every 42 months, Hydraulic ToolKit monthly. The most recent releases landed on October 14, 2026 and October 11, 2026 respectively.

Scorecard3 real differences · 7 level
Polata versus Hydraulic ToolKit: the parameters behind the verdict, then further details
ParameterPolataHydraulic ToolKit
PriceFreeFree
Rating5.0 (3 ratings)5.0 (1 ratings)
Positive reviews66.7% of reviews—
Number of ratings3 — better1
Update frequencyEvery 42 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS9.0 — better15.1
Further details — not scored
Size1 MB23 MB
Age rating4+4+
DeveloperSmitesh BakraniaWade Trim Group, Inc.

Customer experience

Polata

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive66.7%
Neutral33.3%
Negative0.0%

Hydraulic ToolKit

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

In-app purchases

None

Polata

No in-app purchases

None

Hydraulic ToolKit

No in-app purchases

Questions

Is Polata free?
Polata is free to download, with no in-app purchases.
Is Hydraulic ToolKit free?
Hydraulic ToolKit is free to download, with no in-app purchases.
Which has better reviews, Polata or Hydraulic ToolKit?
Polata and Hydraulic ToolKit are both rated 5.0 out of 5 on the App Store, from 3 and 1 ratings respectively.
Do Polata or Hydraulic ToolKit have ads?
Neither Polata nor Hydraulic ToolKit shows ads.
Which is updated more often, Polata or Hydraulic ToolKit?
Polata ships an update every 42 months, and Hydraulic ToolKit monthly. Most recently, Polata was updated on October 14, 2026 and Hydraulic ToolKit on October 11, 2026.

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