# Topo Reader vs OpenMaps

The clearest difference is rating: Topo Reader at 4.6 against OpenMaps's 3.9. Topo Reader also leads on review sentiment (50% vs 10%) and ads (none vs shown). OpenMaps's advantage is monetization model (free with in-app purchases vs subscription). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Topo Reader sells 3 one-off in-app purchases and OpenMaps sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Topo Reader holds the better App Store score, 4.6 against 3.9. That said, the two scores are not equally well evidenced: Topo Reader has 174 ratings behind it against 16, so its average is the more settled of the two. Written reviews point the same way: 50% of Topo Reader's written reviews are positive against 10% of OpenMaps's.

Topo Reader ships an update every 3 months, OpenMaps every 2 months. The most recent releases landed on September 29, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Topo Reader | OpenMaps |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (174 ratings)](https://appshunter.io/ios/app/topo-reader/id940309979/reviews)** | [3.9 (16 ratings)](https://appshunter.io/ios/app/openmaps-topographic-maps/id1035361157/reviews) |
| Number of ratings | **174** | 16 |
| Positive reviews | **50.0% of reviews** | 9.7% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Subscription | **Free with in-app purchases** |
| Size | 29 MB | 21 MB |
| Requires iOS | **14.0** | 18.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 9+ | +4 |
| Developer | [Delcartes LLC](https://appshunter.io/developer/909846659) | [Immaginet Srl](https://appshunter.io/developer/545184631) |

## What reviewers say

### Topo Reader

[App page](https://appshunter.io/ios/app/topo-reader/id940309979)

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.

**Highlights:** Download USGS topographical maps offline, Import geospatial PDF maps, Offline GPS usage on downloaded maps, Dual mode ruler for distance measurement, Route creation and GPS track recording, Augmented Reality waypoints

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 90 Day | $2.99 | one-time |
| 1 Year | $5.99 | one-time |
| Lifetime | $23.99 | one-time |


### OpenMaps

[App page](https://appshunter.io/ios/app/openmaps-topographic-maps/id1035361157)

Access detailed, open-source topographic maps for all your outdoor adventures. Plan hikes, discover trails, and navigate with confidence using community-driven data from OpenStreetMap.

**Highlights:** Detailed topographic maps, OpenStreetMap (OSM) data, Live tile mapping, Route planning, Community-driven data, Offline map access (implied by planning/navigation)

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OpenMaps Pro Monthly | $1.99 | per month |
| Open Maps Pro Yearly Plan | $8.99 | per year |


## Frequently asked questions

### Is Topo Reader free?

Topo Reader is free to download, with in-app purchases available.

### Is OpenMaps free?

OpenMaps is free to download, with in-app purchases available.

### Which has better reviews, Topo Reader or OpenMaps?

Topo Reader is rated higher. Topo Reader averages 4.6 out of 5 from 174 ratings, while OpenMaps averages 3.9 from 16 ratings.

### Do Topo Reader or OpenMaps have ads?

OpenMaps shows ads; Topo Reader does not.

### Which is updated more often, Topo Reader or OpenMaps?

Topo Reader ships an update every 3 months, and OpenMaps every 2 months. Most recently, Topo Reader was updated on September 29, 2026 and OpenMaps on September 22, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*