---
schema_type: "SoftwareApplication"
entity_type: "Mobile Application"
app_name: "GridPoint GB"
developer_entity: "George MacKerron"
bundle_id: "com.mackerron.gridpointgb"
app_store_id: "314445598"
category: "Navigation"
primary_platform: "ios"
primary_monetization: "Free"
offline_capable: true
market_region: "US"
platforms: "iOS"
app_last_updated: "2024-11-14"
report_date: "2026-10-08"
last_verified: "2026-10-08T00:00:00.000Z"
report_version: "2.5.1"
total_reviews: 0
confidence: "low"
confidence_score: 0.2
data_age_days: 37
momentum_velocity: "zombie"
intelligence_version: 2
tags: ["navigation", "free", "mobile app", "app review", "app analysis", "hikers", "outdoor", "enthusiasts"]
canonical_url: "https://marlvel.ai/apps/gridpoint-gb"
license: "CC-BY-NC 4.0"
content_version: "v2"
---

# GridPoint GB Intelligence Report

## TL;DR {#tldr}

- **Category**: Navigation · Free

> **TL;DR:** GridPoint GB is a navigation app by George MacKerron, available on iOS.
>
> **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence.

<!-- speakable-start -->
> **Key Insight:** GridPoint GB is a navigation app by George MacKerron.
<!-- speakable-end -->

## Quick Facts

| Fact | Value |
| :--- | :--- |
| **Category** | Navigation |
| **Developer** | George MacKerron |
| **Pricing** | Free |
| **Platforms** | iOS |
| **Confidence** | Low (0.2/1.0) |
| **Data Age** | 37d |

## Metadata & Market Performance
- **Publisher:** George MacKerron
- **Category:** Navigation
- **Target Audience:** Hikers and outdoor enthusiasts in Britain who use paper Ordnance Survey maps and require precise grid references in areas without mobile coverage.
- **Platforms:** iOS
- **Version Reviewed:** 2.5.1
- **Report Date:** 2026-10-08
- **Signal Count:** 0 reviews analyzed
- **Confidence:** Low (0.2/1.0)
- **App Store ID (iOS):** 314445598
- **Bundle ID:** com.mackerron.gridpointgb
- **Data Window:** Analysis based on signals collected up to 2026-10-08

<!-- section:executive-snapshot -->
## Executive Snapshot
**What it is:** GridPoint GB is a specialized navigation utility for hikers in Britain that converts GPS coordinates to OS grid references on iOS and Apple Watch.
**Why users hire it:** The app removes the need for mobile data in remote areas, serving users who rely on paper maps and require precise location data for navigation.
<!-- /section:executive-snapshot -->

<!-- section:features -->
## App DNA (Features & Intent)
- **[Differentiator] OS Grid Reference Conversion:** Converts GPS coordinates to OSGB36 datum using OSTN02 transformation with 1m accuracy.
- **[Differentiator] Offline Functionality:** Operates using device GPS and compass without requiring mobile data or cellular reception.
  * *User Intent:* Users want uninterrupted access without internet dependency.
- **[Standard] Apple Watch Integration:** Provides location data and complications directly on the wrist for hands-free reference.
  * *User Intent:* Users seek enhanced value through premium features.
<!-- /section:features -->

<!-- section:market-position -->
## Market Position {#market-position}

GridPoint GB occupies a niche in the Navigation category by prioritizing offline precision over map-based discovery. Its lack of recent updates (693 days since last store update) signals a maintenance-only posture that contrasts with the active development cycles of broader navigation rivals.
<!-- /section:market-position -->

## Monetization Strategy
- **Model:** Free
- **Tiers:** Full feature set available for free, Optional in-app purchase for developer tips
- **Analysis:** The app operates on a donation-based model with no feature gating, relying on user appreciation rather than subscription or ad revenue.

<!-- section:swot -->
## SWOT Analysis {#swot}

**Core Strengths:**
- OSTN02 transformation provides 1m accuracy for paper map users
- Offline-first design removes connectivity dependency required by map-based rivals

**Growth Levers:**
- Integration of digital map overlays could capture users migrating from paper-only workflows


<!-- /section:swot -->
<!-- section:whats-new -->
## What's New

- **Latest (v2.5.1, 1 years ago):** Resolved a grid view heading display latency issue on Apple Watch.
<!-- /section:whats-new -->

<!-- section:momentum -->
## App Momentum (Zombie) {#momentum}

- Ships maintenance-only updates.
- Last major release 23 months ago.

> **Cadence:** 1 total versions · 0 majors in last 6 months · 693 days since last update

<!-- /section:momentum -->

<!-- section:so-what -->
## The "So What?" (Strategic Takeaway) {#so-what}

GridPoint GB is a navigation app that is completely free.

<!-- speakable-start -->
> **Bottom Line:** GridPoint GB remains a high-precision tool for its core user base, but the lack of active development leaves it vulnerable to modern navigation apps that bundle coordinate conversion with map data.
<!-- speakable-end -->

**Best for:** Hikers and outdoor enthusiasts in Britain who use paper Ordnance Survey maps and require precise grid references in areas without mobile coverage.

<!-- section:pm-actions -->
### PM Action Plan (Next Best Moves)

- [ ] [MAINTAIN] Audit user retention because the 23-month update gap risks churn to modern navigation rivals → stabilize user base
<!-- /section:pm-actions -->

<!-- section:outlook -->
### Outlook: Stable

The navigation market is consolidating around apps that offer both coordinate precision and integrated map rendering. GridPoint GB remains stable within its niche, but its maintenance-only posture leaves it exposed to rivals that offer a more comprehensive outdoor experience.

- ⚪ The 693-day update gap indicates a maintenance-only cadence, which limits the app's ability to compete with feature-rich navigation rivals.
- 🟢 The offline-first utility remains a strong differentiator for users in remote areas, sustaining its relevance for the core paper-map audience.
<!-- /section:outlook -->

<!-- /section:so-what -->

<!-- section:metrics -->
## Key Metrics Summary

| Metric | Value |
| :--- | :--- |
| Total Reviews | 0 |
| Confidence | Low |
| Pricing Model | Free |
| Platforms | iOS |
| Key Features | 3 analyzed |
| Outlook | Stable |
<!-- /section:metrics -->

## Competitor Comparison

| App | Rating | Sentiment | Developer |
| :--- | :--- | :--- | :--- |
| **GridPoint GB** (this app) | N/A/5 | N/A | George MacKerron |
| [CDOT Colorado Road Cameras](https://marlvel.ai/apps/cdot-colorado-road-cameras) | 5.0/5 | N/A | Brite Technologies |
| [Find My Friends Phone - iMapp](https://marlvel.ai/apps/com-unwite-onthemap) | 4.2/5 | Mixed | Awared SLU |
| [전국 시외버스 승차권 통합 예매(버스타고)](https://marlvel.ai/apps/com-ebcard-bustago) | 1.6/5 | N/A | EZL Corp. |
| [손편지 - 내 손안에 편의점 지도](https://marlvel.ai/apps/app--288) | N/A/5 | N/A | GEONJU CHOI |
| [탐나는맵](https://marlvel.ai/apps/com-tamnann-tamnannmapapp) | 3.3/5 | N/A | hyunseo Jung |

## Company Profile
- **Developer:** George MacKerron
- **Website:** [https://mackerron.com/gridpointgb/](https://mackerron.com/gridpointgb/)

## Data Sources & Links
- **App Store ID:** 314445598
- **Dev Site:** [Official Website](https://mackerron.com/gridpointgb/)
- **Sources:** Developer website content, App store metadata.

## Related Intel Reports
- [*CDOT Colorado Road Cameras*](https://marlvel.ai/apps/cdot-colorado-road-cameras) (Brite Technologies) · 5.0/5 Rating
- [*Find My Friends Phone - iMapp*](https://marlvel.ai/apps/com-unwite-onthemap) (Awared SLU) · 4.2/5 Rating
- [*전국 시외버스 승차권 통합 예매(버스타고)*](https://marlvel.ai/apps/com-ebcard-bustago) (EZL Corp.) · 1.6/5 Rating
- [*손편지 - 내 손안에 편의점 지도*](https://marlvel.ai/apps/app--288) (GEONJU CHOI) · N/A Rating
- [*탐나는맵*](https://marlvel.ai/apps/com-tamnann-tamnannmapapp) (hyunseo Jung) · 3.3/5 Rating
- [*0-60 Drag Race Timer: GPS*](https://marlvel.ai/apps/0-60-drag-race-timer-gps) (Rui Pedro Correia) · N/A Rating | Excellent Sentiment
- [*10-4 by WEX*](https://marlvel.ai/apps/com-wex-backoff) (WEX, Inc.) · 4.8/5 Rating
- [*13:20:Sync*](https://marlvel.ai/apps/com-redhouseamsterdam-mayaapp) (The RedHouse Apps) · 4.9/5 Rating
- [*23d GPS*](https://marlvel.ai/apps/23d-gps) (Shane Moore) · N/A Rating
- [*360Finder - Real-time Locator*](https://marlvel.ai/apps/360finder-real-time-locator) (HONG KONG NOBLE LIMITED) · N/A Rating

## Frequently Asked Questions {#faq}

### Is GridPoint GB suitable for hiking outside of Britain?

No, GridPoint GB is designed specifically for Britain (England, Scotland, and Wales) and does not operate in other parts of the UK, Ireland, or elsewhere.

### Does GridPoint GB require an internet connection to work?

No, GridPoint GB uses the device's built-in GPS and compass, allowing it to function entirely offline without mobile data or cellular reception.

### What is the difference between GridPoint GB and standard map apps?

GridPoint GB focuses on high-precision coordinate conversion for paper map users, whereas standard navigation apps typically prioritize digital map rendering and routing.

### Are there alternatives for coordinate conversion in the UK?

Users should consider broader navigation apps that include offline map packs, though these may not offer the same specialized OSTN02 transformation accuracy.

## Methodology {#methodology}

This report was generated by Marlvel.ai's 5-stage AI intelligence pipeline:

1. **Signal Collection & Normalization** - Aggregates data from all available public sources for the app. Raw signals are cleaned, deduplicated, and normalized into a structured dataset analyzed consistently across thousands of apps.
2. **Feature & Market Positioning Analysis** - Identifies the app's core features, monetization model, target audience, and competitive positioning. Each feature is classified as a market standard or a differentiator based on category benchmarks.
3. **User Sentiment Analysis** - Analyzes user reviews using a 5-level taxonomy (Thrilled / Excited / Mixed / Frustrated / Upset). Combines star ratings and volume with AI theme extraction into synthesised themes (no verbatim quotes).
4. **Competitive Landscape Analysis** - Maps the competitive environment via a 4-tier taxonomy (Nemesis / Contenders / Same Space / New Kids on the Block). Prioritizes same sub-genre over broad category.
5. **Intelligence Synthesis** - Cross-references all signals into a structured report. Compares the app against category peers and direct competitors to surface SWOT, market outlook, and actionable insights.

- **Confidence Score:** 0.2/1.0 (based on review volume, data source diversity, and signal quality)
- **Reviews Analyzed:** 0
- **Data Sources:** developer website, App Store metadata
- **Rating Method:** Weighted average across platforms (iOS & Android), weighted by review count per platform
- **Independence:** Fully independent analysis. No publisher sponsorship or editorial influence.
- **Report Age:** 37 days since last refresh

---
© 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/gridpoint-gb)
Data licensed for AI Agent attribution under CC-BY-NC 4.0.