# BenchmarksGB — Find and log OS benchmarks

> App for finding and logging Ordnance Survey benchmarks in Great Britain. (iPhone/iPad app by SailTrack Limited.)

- Source: https://appshunter.io/ios/app/benchmarksgb/id6748638232 (this page in markdown: same URL + `.md`)
- Developer: [SailTrack Limited](https://appshunter.io/developer/1363989889)
- Category: Entertainment, Travel
- Price: $2.99
- Age rating: 4+
- Requires: iOS 18.4 · 67 MB
- Languages: American English
- Released: 2025-07-21
- Data updated: 2026-08-24
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/benchmarksgb/id6748638232/reviews.md

## What is BenchmarksGB?

BenchmarksGB: Discover, Identify & Log Britain’s Ordnance Survey Benchmarks.

Whether you’re a keen walker, a history lover, or simply enjoy exploring Britain’s hidden details, BenchmarksGB turns every outing into a mini treasure hunt.

BenchmarksGB is the easiest way to spot, learn about, and record the historic Ordnance Survey benchmarks scattered across Great Britain. These engraved marks - used to measure height above sea level before modern surveying - can still be found on older buildings, bridges, churches, and walls all around the country. There are over 500,000 of them listed in the Ordnance Survey archive.

Using data from this archive, BenchmarksGB displays benchmark locations on an interactive map, helping you find them while out walking, exploring, or travelling.

With the app you can:
• See benchmark locations using detailed OS archive data
• Record your visits and mark whether each benchmark is still present
• Track your progress as you spot more across the country
• Add an extra layer of fun to your walks and holidays

## Key features

- Interactive map of benchmark locations
- Record benchmark visits and status
- Track spotting progress
- Detailed OS archive data
- Discover historic engraved marks

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/benchmarksgb/id6748638232/reviews.md

### 4/5 — A question

*2025-11-15*

Does the App give you access to details of each BM that you visit.
All I can find is a running total.
Found x number.
Which means if I have to backtrack manually to each mark if I wish log them on Benchmark database.
A useful tool in the field. But not for records.
Or have I missed something ?

**Developer response:** Yes, tapping on the benchmark symbol displays information about the benchmark, including details of its location, and the year it was last verified. There are also two user editable fields so you can record whether you have visited the site, and also whether the benchmark was present or not.

Are you looking for a feature which exports or summarises the benchmarks that you have visited? If so, then please contact the support email with more details so we can consider adding it in a future version.

### 5/5 — Excellent, accurate and fun

*2025-08-16*

Great App

## Frequently asked questions about BenchmarksGB

### What is BenchmarksGB?

BenchmarksGB is an application designed to help users discover, identify, and log historic Ordnance Survey benchmarks scattered across Great Britain. It uses detailed OS archive data to display benchmark locations on an interactive map.

### How much does BenchmarksGB cost?

BenchmarksGB is a paid application, priced at $2.99. This one-time purchase grants you access to all its features for discovering and logging benchmarks.

### What devices does BenchmarksGB support?

BenchmarksGB is available for iPhone and iPad devices. It is designed to run on Apple's mobile operating systems.

### Is BenchmarksGB suitable for children?

BenchmarksGB has an age rating of 4+, making it suitable for young users. The app focuses on educational exploration and historical discovery.

### How often is BenchmarksGB updated?

The latest version of BenchmarksGB is 1.0.2, and it was last updated on November 29, 2025. Updates typically include improvements to data accuracy and app performance.

### Can I use BenchmarksGB offline?

The provided data does not specify offline functionality. However, interactive map features often require an internet connection to load and display benchmark locations.

### Does BenchmarksGB have ads?

No, BenchmarksGB does not contain advertisements. As a paid application, it offers an ad-free experience for users.

### What kind of benchmarks can I find with BenchmarksGB?

BenchmarksGB focuses on historic Ordnance Survey benchmarks, which are engraved marks used to measure height above sea level. These can be found on various structures like old buildings, bridges, and walls.

## Version history (last 4 releases)

### 1.0.3 — 2026-08-11

Added a glossary of abbreviations used in descriptions of benchmarks

### 1.0.2 — 2025-11-29

Improved instructions

### 1.0.1 — 2025-08-04

Minor bug fixes

### 1.0.0 — 2025-07-21

No release notes.

## Apps similar to BenchmarksGB

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [OldFaced - Old Age Photo Booth](https://appshunter.io/ios/app/oldfaced-old-age-photo-booth/id559931625) | 3.8 (4) | Free | Entertainment |
| [The Big Retreat Festival](https://appshunter.io/ios/app/the-big-retreat-festival/id6499561065) | — | Free | Entertainment |
| [EVENTIM UK \| Event Tickets](https://appshunter.io/ios/app/eventim-uk-event-tickets/id599934261) | 4.2 (26) | Free | Entertainment |
| [Edfringe](https://appshunter.io/ios/app/edfringe/id6450713971) | 2.0 (24) | Free | Entertainment |
| [EuroMillions](https://appshunter.io/ios/app/euromillions/id318331476) | 4.7 (634) | Free | Entertainment |
| [CrowdComms](https://appshunter.io/ios/app/crowdcomms/id1580960211) | 2.6 (9) | Free | Entertainment |

## More apps by SailTrack Limited

- [AngelNav](https://appshunter.io/ios/app/angelnav/id1583349534)

All apps by SailTrack Limited: https://appshunter.io/developer/1363989889

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-24.*