# Topo Reader

> USGS Topographical Maps

Canonical page: [https://chrome-stats.com/d/id940309979](https://chrome-stats.com/d/id940309979)

## Overview

- **ID:** `id940309979`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Delcartes LLC
- **Category:** Navigation
- **Rating:** 4.60 / 5 (176 ratings)
- **Version:** 8.1
- **Last updated:** 2022-11-03
- **First published:** 2014-11-17
- **Size:** 29 MB
- **Data as of:** 2026-09-20
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/topo-reader/id940309979)
- **Privacy policy:** [http://www.delcartes.com/privacy\_policy.html](http://www.delcartes.com/privacy_policy.html)

## Description

Topo Reader lets you download and view USGS topographic maps offline in high resolution. It supports geospatial PDFs, background downloads, and offline GPS for hiking, camping, and travel. Import maps from the web, AirDrop, Finder, iTunes, or email, and view them on an aligned datum with easy reference and touch navigation.

Features include a dual-mode ruler, AR waypoints, route creation, GPX import/export, and map rotation. A subscription unlocks unlimited downloads and ad-free use.

## Rankings

- #110,011 — Overall
- #91 — maps

## Review summary

Topo Reader is generally praised for reliability and usefulness, a simple interface, and free access to historical USGS topo maps with a robust feature set. However, multiple reviews point to disruptive in-app ads in the free version, which can hinder map viewing, and some users report issues with premium access. Overall, it’s valued for maps and planning, with ads reducing the free experience.

### Pros

- Reliability and usefulness for mapping and trip planning
- Simple, well-designed interface with good help/documentation
- Free access to historical USGS topo maps and a robust feature set
- Good value with an affordable lifetime license

### Cons

- Ads in the free version frequently disrupt map viewing (full-screen interruptions)

## Similar extensions and apps

- [Topo Nomad](https://chrome-stats.com/d/id909846656) — 4.60 / 5
- [Topo Maps 2](https://chrome-stats.com/d/id6453889012) — 4.10 / 5
- [Topo Maps for iPad](https://chrome-stats.com/d/id368739154) — 4.30 / 5
- [Topo Maps US](https://chrome-stats.com/d/id1033846196) — 4.40 / 5
- [Topographic Maps & Trails](https://chrome-stats.com/d/id1440944902) — 4.60 / 5
- [Topo Maps](https://chrome-stats.com/d/id306014271) — 4.30 / 5
- [Topo Maps+: Topographic Maps](https://chrome-stats.com/d/id672246353) — 4.70 / 5
- [Topo Maps](https://chrome-stats.com/d/id929001708) — 4.50 / 5
- [Topo Map - Georeferencing](https://chrome-stats.com/d/id6772009746)
- [LiveTopo](https://chrome-stats.com/d/id1521874998) — 3.50 / 5
- [Topo GPS - Topographic maps](https://chrome-stats.com/d/id578960575) — 4.50 / 5
- [Topo Maps & Trails Offline](https://chrome-stats.com/d/id6760831361)

---

Source: [Chrome-Stats](https://chrome-stats.com/d/id940309979)