---
title: "Frostmd LLP — Publisher Overview"
type: publisher
publisher: "Frostmd LLP"
publisher_slug: "frostmd-llp"
canonical_url: "https://marlvel.ai/publishers/frostmd-llp"
last_updated: 2026-05-07T14:50:24.921Z
source: Marlvel.ai
license: CC-BY-NC-4.0
citation: "Marlvel.ai — Frostmd LLP Publisher Overview"
---
# Frostmd LLP — Publisher Overview

> Providing specialized navigation and transit data for London commuters. Helping passengers optimize travel time through granular station-level insights.

- **Publisher:** Frostmd LLP
- **Website:** [https://stationmasterapp.com](https://stationmasterapp.com)
- **Overview generated:** 2026-05-07
- **License:** CC-BY-NC 4.0

## Executive summary

Frostmd LLP occupies a niche position as a specialized transit utility provider, leveraging deep domain expertise in London's rail infrastructure. Their moat is built on proprietary, granular data—such as carriage-specific exit positioning and 3D station layouts—that general-purpose mapping apps fail to capture. The publisher’s credibility is anchored by the co-founder’s status as a record-holding transit expert and a past winner of a TfL-sponsored competition, which provides a level of institutional legitimacy rare for a small-scale developer. The primary strategic tension is their reliance on a legacy paid-app model in a market increasingly dominated by free, real-time transit aggregators.

## Publisher DNA

- **Primary focus:** Transit navigation utilities for London rail networks
- **Scale:** indie
- **Target audience:** London-based commuters and transit enthusiasts who prioritize navigation efficiency and historical infrastructure data.
- **Origin:** Founded by a two-time Guinness World Record holder for fastest travel to all London Tube stations.

## Portfolio momentum

- **Velocity:** maintenance
- **Active apps:** 3
- **Abandoned apps:** 2
- **Last major release:** 78 days ago

With only one release in the last six months and a significant portion of the portfolio showing older update timestamps, development activity is currently in a maintenance phase.

## Aggregated portfolio metrics

- **Total reviews (all apps):** 11
- **Weighted rating:** 4.64 / 5
- **Apps in portfolio:** 5

## Category breakdown

| Category | Apps | Share |
| :--- | :--- | :--- |
| Travel | 5 | 100% |

## Top apps

- **Station Master** — Flagship app with 10 ratings.
- **Tube Exits by Station Master** — Specialized utility for carriage door positioning.
- **Tram Master** — Network-specific 3D mapping tool.
- **Oyster Errors • London** — Reference tool for transit payment error codes.
- **Disused Tube** — Historical guide for abandoned transit infrastructure.

## Signature patterns

- Strict focus on the London public transport network
- Core functionality designed for offline accessibility
- Monetization exclusively via paid app model
- Integration of specialized, non-standard transit data like 3D layouts and exit optimization

## Bottom line

Frostmd LLP is a highly specialized developer that has successfully translated deep transit domain knowledge into a suite of utility tools. Their long-term viability depends on maintaining the accuracy of their proprietary data against the evolving London transit network.

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