1. Home
  2. Topics
  3. Topo Reader

Best Topo Reader Apps

250+ iOS apps curated and reviewed

3.0 avg rating
19 free apps
Updated September 2026

With an average user rating of 3.0★, the topo reader category is one of the App Store's strongest. Browse all 250+ apps we track, sorted so the most loved ones surface first.

Compare top Topo Reader Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Topo ReaderTopo ReaderFree4.6★ (174)NoYesSep 2026
2Euria Manga & E-Book ReaderEuria Manga & E-Book ReaderFree—NoNoAug 2026
3Marble: EPUB & PDF ReaderMarble: EPUB & PDF ReaderFree——NoAug 2026
4Amazon Kindle: Reading AppAmazon Kindle: Reading AppFree4.9★ (5.8M)NoNoSep 2026
5Manga Reader - Top MangaManga Reader - Top MangaFree1.7★ (6)YesYesAug 2026
6Yomu - Fast PDF ReaderYomu - Fast PDF ReaderFree—NoYesAug 2026
7Reed - Text ReaderReed - Text ReaderFree—YesYesJul 2026
8ReadTool - Offline ReaderReadTool - Offline ReaderFree—NoNoAug 2026

Top Picks for Topo Reader

Topo Reader#1

Topo Reader by Delcartes LLC

USGS Topographical Maps
Editor's Choice
🗺️ Navigation
4.6(174 ratings)
FreeIn-App Purchases
Topo Reader screenshot 1
Topo Reader screenshot 2
Topo Reader screenshot 3
Topo Reader screenshot 4

Access and use detailed USGS topographical maps offline, even historical versions. Import your own geospatial PDF maps for navigation, route planning, and distance measurement. Ideal for outdoor adventures and geographical exploration.

More Topo Reader apps to explore

FAQ about Topo Reader

What are the best topo reader apps for iPhone?
Topo Reader tops our topo reader apps ranking as of September 2026, with a 4.6-star average from 174 App Store ratings, and it's free to download.
Yes — 19 of the top topo reader apps we rank are free to download, including Topo Reader and Euria Manga & E-Book Reader.
Topo Reader has no ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 250+ topo reader apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
Topo Reader allows you to download and use a vast collection of USGS topographical maps offline. You can also import your own geospatial PDF maps. The app provides features like GPS location tracking on these maps, distance measurement, and route planning, making it ideal for outdoor activities and exploration.
Once you download a USGS topographical map or import a geospatial PDF map, you can access and use it without any cellular service or internet connection. The app utilizes your device's GPS to show your current location on the downloaded map, enabling navigation and planning even in remote areas.