# Plottron vs Roth QuickStop Sensor

Plottron and Roth QuickStop Sensor are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Plottron ships an update every 2 months, Roth QuickStop Sensor every 6 weeks. The most recent releases landed on October 1, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Plottron | Roth QuickStop Sensor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (12 ratings)](https://appshunter.io/ios/app/plottron/id1037723649/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | Free | — |
| Size | 2 MB | 44 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Billy Lin](https://appshunter.io/developer/1037723648) | [Roth North Europe AS](https://appshunter.io/developer/1681766428) |

## What reviewers say

### Plottron

[App page](https://appshunter.io/ios/app/plottron/id1037723649)

This application offers advanced 2D and 3D graphing capabilities for various function types, alongside a comprehensive scientific calculator. It supports implicit graphing, complex number visualization, and symbolic differentiation. The calculator includes user-defined variables, live evaluation, and probability density functions.

**Highlights:** 2D and 3D graphing, Implicit graphing, Complex number visualization, Symbolic differentiation, User-defined variables and functions, Live evaluation, Calculation history

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

**In-app purchases:** none


### Roth QuickStop Sensor

[App page](https://appshunter.io/ios/app/roth-quickstop-sensor/id6447560535)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Plottron free?

Plottron is free to download, with no in-app purchases.

### Is Roth QuickStop Sensor free?

Roth QuickStop Sensor is free to download, with no in-app purchases.

### Do Plottron or Roth QuickStop Sensor have ads?

Neither Plottron nor Roth QuickStop Sensor shows ads.

### Which is updated more often, Plottron or Roth QuickStop Sensor?

Plottron ships an update every 2 months, and Roth QuickStop Sensor every 6 weeks. Most recently, Plottron was updated on October 1, 2026 and Roth QuickStop Sensor on September 15, 2026.

---

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