# Plotter XL vs Kluug

The clearest difference is review sentiment: Kluug at 60% against Plotter XL's 0%. Kluug also leads on price (Free vs $1.99) and update cadence (every 3 months vs every 24 months). On ads and in-app purchases there is nothing between them.

Kluug is free to download; Plotter XL costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Plotter XL ships an update every 24 months, Kluug every 3 months. The most recent releases landed on October 22, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Plotter XL | Kluug |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Positive reviews | 0.0% of reviews | **60.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 24 months | **Every 3 months** |
| Monetization | Paid | **Free** |
| Size | 1 MB | 3 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Piet Jonas](https://appshunter.io/developer/288060167) | [PCS AG](https://appshunter.io/developer/990216359) |

## What reviewers say

### Plotter XL

[App page](https://appshunter.io/ios/app/plotter-xl/id368017095)

Visualize mathematical functions by entering formulas and specifying a plotting range. Supports multiple functions, theme customization, and saving formulas for future use. Share your creations via email.

**Highlights:** Plot multiple functions, Customizable chart themes, Save and reuse formulas, Email formulas and charts, Retina display support

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

**In-app purchases:** none


### Kluug

[App page](https://appshunter.io/ios/app/kluug-lesen-lernen/id1610566456)

This app makes learning to read an exciting adventure for children through engaging games and a vast audiobook library. It adapts to each child's reading level, fostering progress with a unique blend of cooperative learning, linguistics, didactics, and gamification.

**Highlights:** 8 interactive reading games, Adaptable to child's reading level, Extensive audiobook library, Cooperative learning modes, Progress tracking for parents, Gamified learning with rewards, Developed with educators and scientists

**In-app purchases:** none


## Frequently asked questions

### Is Plotter XL free?

Plotter XL costs $1.99, with no in-app purchases.

### Is Kluug free?

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

### Do Plotter XL or Kluug have ads?

Neither Plotter XL nor Kluug shows ads.

### Which is updated more often, Plotter XL or Kluug?

Plotter XL ships an update every 24 months, and Kluug every 3 months. Most recently, Plotter XL was updated on October 22, 2026 and Kluug on October 20, 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.*