---
title: "Klaas Kremer — Publisher Overview"
type: publisher
publisher: "Klaas Kremer"
publisher_slug: "klaas-kremer"
canonical_url: "https://marlvel.ai/publishers/klaas-kremer"
last_updated: 2026-04-24T01:55:26.716Z
source: Marlvel.ai
license: CC-BY-NC-4.0
citation: "Marlvel.ai — Klaas Kremer Publisher Overview"
---
## ⚠ Content Warning

This publisher's portfolio includes apps classified as sensitive (kids, health, gambling). Information is aggregated from public sources for informational purposes only. This publisher has apps marketed to children. This overview is provided to inform parents, guardians, or professionals — not to promote the apps to minors.

---

# Klaas Kremer — Publisher Overview

> Providing high-precision utility tools and niche calculators for culinary enthusiasts, travelers, and social groups.

- **Publisher:** Klaas Kremer
- **Website:** [https://kitchenjarandscale.ksoft.nl](https://kitchenjarandscale.ksoft.nl)
- **Overview generated:** 2026-04-24
- **License:** CC-BY-NC 4.0

## Executive summary

Klaas Kremer operates as a utility-first developer focusing on high-precision tools for specific enthusiast niches, such as sous-vide cooking and solar tracking. The portfolio's strength lies in identifying underserved functional gaps where a single, well-executed utility can dominate a niche without requiring a complex platform. A recent shift toward integrating AI into legacy categories like party games and fitness suggests a strategic attempt to modernize a largely dormant catalog.

## Publisher DNA

- **Primary focus:** Niche utility tools and enthusiast calculators
- **Scale:** studio
- **Target audience:** Hobbyists and professionals seeking specific functional tools, including home cooks, travelers, and social groups.

## Portfolio momentum

- **Velocity:** steady
- **Active apps:** 4
- **Abandoned apps:** 16
- **Last major release:** 20 days ago

Maintained a steady update cadence with 4 releases in the last 6 months, despite a high percentage of legacy apps being in maintenance.

## Aggregated portfolio metrics

- **Total reviews (all apps):** 122,808
- **Weighted rating:** 4.38 / 5
- **Apps in portfolio:** 20

## Category breakdown

| Category | Apps | Share |
| :--- | :--- | :--- |
| Food & Drink | 7 | 35% |
| Lifestyle | 2 | 10% |
| Education | 2 | 10% |
| Games | 2 | 10% |
| Health & Fitness | 1 | 5% |
| Sports | 1 | 5% |
| Medical | 1 | 5% |
| Weather | 1 | 5% |
| Reference | 1 | 5% |
| Finance | 1 | 5% |
| Travel | 1 | 5% |

## Top apps

- **Sous Vide Timing Ruler** — 113,415 reviews · 4.4★
- **Create your own charades** — 9,038 reviews · 4.2★
- **Ultimate Travel Tip Calculator** — 216 reviews · 4.8★

---
© 2026 Marlvel.ai | [Publisher apps index](https://marlvel.ai/api/llm/publishers/klaas-kremer) | [Methodology](https://marlvel.ai/api/llm/methodology)
Data licensed under CC-BY-NC 4.0.

---
© 2026 Marlvel.ai | [Full publisher profile](https://marlvel.ai/publishers/klaas-kremer) | [Publisher apps index](https://marlvel.ai/api/llm/publishers/klaas-kremer) | [Methodology](https://marlvel.ai/api/llm/methodology)
Data licensed under CC-BY-NC 4.0.