# Lambda Tuner vs Measurement Calculators 2.0

The clearest difference is price: Measurement Calculators 2.0 at Free against Lambda Tuner's $3.99. Lambda Tuner's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement there is nothing between them.

Measurement Calculators 2.0 is free to download; Lambda Tuner costs $3.99 up front. Measurement Calculators 2.0 sells 1 in-app purchase, starting at $1.99 per month. Lambda Tuner asks for nothing beyond the download.

## The numbers

| Metric | Lambda Tuner | Measurement Calculators 2.0 |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[3.3 (3 ratings)](https://appshunter.io/ios/app/lambda-tuner/id632731065/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 19 months | — |
| Monetization | Paid | — |
| Size | 1 MB | 3 MB |
| Requires iOS | 16.6 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Johan Bjors](https://appshunter.io/developer/632731068) | [Kyle Walker](https://appshunter.io/developer/1571559324) |

## What reviewers say

### Lambda Tuner

[App page](https://appshunter.io/ios/app/lambda-tuner/id632731065)

This tool helps tune PID controllers using the Lambda method to calculate P, I, and D parameters. It's designed for intuitive use in various process industries and works on self-regulating and integrating loops. You can also use it to learn the impact of different PID parameters.

**Highlights:** Lambda method for PID parameter calculation, Supports self-regulating and integrating loops, Intuitive and easy to use interface, Adjustable Lambda value for reaction speed, Manual PID parameter testing, Educational tool for PID parameter impact

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Measurement Calculators 2.0

[App page](https://appshunter.io/ios/app/measurement-calculators-20/id6451396544)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Plan | $1.99 | per month |


## Frequently asked questions

### Is Lambda Tuner free?

Lambda Tuner costs $3.99, with no in-app purchases.

### Is Measurement Calculators 2.0 free?

Measurement Calculators 2.0 is free to download, with in-app purchases available.

### Do Lambda Tuner or Measurement Calculators 2.0 have ads?

Neither Lambda Tuner nor Measurement Calculators 2.0 shows ads.

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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.*