# Polata vs Hydraulic ToolKit

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.

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.

## The numbers

| Metric | Polata | Hydraulic ToolKit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/polata/id535125630/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/hydraulic-toolkit/id6468667309/reviews) |
| Number of ratings | **3** | 1 |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 42 months | **Monthly** |
| Monetization | Free | Free |
| Size | 1 MB | 23 MB |
| Requires iOS | **9.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Smitesh Bakrania](https://appshunter.io/developer/433668402) | [Wade Trim Group, Inc.](https://appshunter.io/developer/1664648819) |

## What reviewers say

### Polata

[App page](https://appshunter.io/ios/app/polata/id535125630)

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:** macOS Compatibility

**In-app purchases:** none


### Hydraulic ToolKit

[App page](https://appshunter.io/ios/app/hydraulic-toolkit/id6468667309)

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

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*