# Lambda Tuner vs PIDTune

The clearest difference is rating: PIDTune at 5.0 against Lambda Tuner's 3.3. PIDTune also leads on update cadence (every 4 months vs every 19 months). Lambda Tuner's advantage is price ($3.99 vs $4.99). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

Lambda Tuner costs $3.99 and PIDTune $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

PIDTune holds the better App Store score, 5.0 against 3.3. Both are backed by a comparable volume of ratings — 3 and 2 respectively.

Lambda Tuner ships an update every 19 months, PIDTune every 4 months. The most recent releases landed on July 5, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Lambda Tuner | PIDTune |
| --- | --- | --- |
| Price | **$3.99** | $4.99 |
| Rating | [3.3 (3 ratings)](https://appshunter.io/ios/app/lambda-tuner/id632731065/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/pidtune/id1045174726/reviews)** |
| Number of ratings | **3** | 2 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 19 months | **Every 4 months** |
| Monetization | Paid | Paid |
| Size | 1 MB | 1 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Johan Bjors](https://appshunter.io/developer/632731068) | [Richard H Street](https://appshunter.io/developer/954888336) |

## 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

**In-app purchases:** none


### PIDTune

[App page](https://appshunter.io/ios/app/pidtune/id1045174726)

This utility calculates PID tuning parameters using the IMC method for various process and controller types. It allows for direct input of process gain or variable changes, with adjustable tuning aggression via a slider.

**Highlights:** IMC method for PID tuning, Calculates Kc, Ti, Td, Supports FO, SO, and I process types, Handles Parallel and Series controller types, Adjustable tuning aggression slider, Input process gain or variable changes

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

**In-app purchases:** none


## Frequently asked questions

### Is Lambda Tuner free?

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

### Is PIDTune free?

PIDTune costs $4.99, with no in-app purchases.

### Which has better reviews, Lambda Tuner or PIDTune?

PIDTune is rated higher. Lambda Tuner averages 3.3 out of 5 from 3 ratings, while PIDTune averages 5.0 from 2 ratings.

### Do Lambda Tuner or PIDTune have ads?

Neither Lambda Tuner nor PIDTune shows ads.

### Which is updated more often, Lambda Tuner or PIDTune?

Lambda Tuner ships an update every 19 months, and PIDTune every 4 months. Most recently, Lambda Tuner was updated on July 5, 2026 and PIDTune on September 21, 2026.

---

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