# SunCalc.net vs Topo Maps US

The clearest difference is monetization model: SunCalc.net at free against Topo Maps US's paid. SunCalc.net also leads on rating (4.8 vs 4.4) and update cadence (every 6 weeks vs every 4 months). Topo Maps US's advantage is ratings volume (210 vs 63). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SunCalc.net holds the better App Store score, 4.8 against 4.4. Both are backed by a comparable volume of ratings — 63 and 210 respectively. Written reviews split almost evenly too, at 88% and 88% positive.

SunCalc.net ships an update every 6 weeks, Topo Maps US every 4 months. The most recent releases landed on September 20, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | SunCalc.net | Topo Maps US |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (63 ratings)](https://appshunter.io/ios/app/suncalcnet/id761295311/reviews)** | [4.4 (210 ratings)](https://appshunter.io/ios/app/topo-maps-us/id1033846196/reviews) |
| Number of ratings | 63 | **210** |
| Positive reviews | **88.1% of reviews** | 87.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 4 months |
| Monetization | **Free** | Paid |
| Size | 19 MB | 5 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Oleg Shanyuk](https://appshunter.io/developer/653045688) | [DC Cloud Apps, LLC](https://appshunter.io/developer/353416960) |

## What reviewers say

### SunCalc.net

[App page](https://appshunter.io/ios/app/suncalcnet/id761295311)

This application provides real-time information about sunrise and sunset times. It also includes a compass, world time display, and weather forecasts, making it a comprehensive tool for understanding solar events and local conditions.

**Highlights:** Sunrise and sunset times, Integrated compass, World time display, Weather forecasts, Time zone awareness

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

**In-app purchases:** none

**What reviewers like**

- 👍 Simple and practical
- 💡 Well-designed interface
- 🎯 Useful for planning outdoor activities
- 📸 Great for photographers
- 🌍 Accurate sun position for any location

**What reviewers complain about**

- 🐛 Sun angle disappears when changing date
- 🗺️ Google Maps not always current
- 🧭 Compass issues
- ⏳ Cannot change time, only date
- 📍 Location search limitations

**Reported bugs**

- Sun angle disappears when changing date
- Compass is not accurate
- App crashes on older iOS versions
- App crashes right after launch
- Crashes at start

**Requested features**

- Display altitude and azimuth of the sun
- Ability to set a specific time, not just current time
- Option for Apple Maps or Open Source Maps
- Compass feature for orientation
- Add moon information


### Topo Maps US

[App page](https://appshunter.io/ios/app/topo-maps-us/id1033846196)

Access and download detailed topographic maps of the United States for offline use. Track your location, mark waypoints, and record your routes for outdoor activities. Navigate with direction arrows and measure distances on the map.

**Highlights:** Download US topographic maps, Offline map viewing, GPS location tracking, Add and import waypoints (flags), Import and share GPX/LOC files, Record and share trails, Elevation profile charts

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

**In-app purchases:** none

**What reviewers like**

- 👍 Intuitive and simple user interface
- 📱 Works completely offline with downloaded maps
- 💰 Free app with no subscriptions or ads
- 🗺️ High-quality USGS topographic maps
- 📍 Accurate GPS location tracking

**What reviewers complain about**

- 🐛 White/gray blocks appearing on offline maps
- 🔋 High battery drain during route recording
- ❌ Limited color options for flags (only red)
- ⚠️ Route recording stops unexpectedly
- 🔍 No search functionality for trails/landmarks

**Reported bugs**

- White and gray blocks appearing on downloaded offline maps
- Route recording stops unexpectedly mid-hike
- High battery drain during route tracking
- GPX file import issues in iOS 13+
- Map display issues near borders

**Requested features**

- Pause/resume tracking during hikes
- Search feature for trails and landmarks
- Apple Watch app support
- CarPlay integration
- Slope shading visualization


## Frequently asked questions

### Is SunCalc.net free?

SunCalc.net is free to download, with no in-app purchases.

### Is Topo Maps US free?

Topo Maps US is free to download, with no in-app purchases.

### Which has better reviews, SunCalc.net or Topo Maps US?

SunCalc.net is rated higher. SunCalc.net averages 4.8 out of 5 from 63 ratings, while Topo Maps US averages 4.4 from 210 ratings.

### Do SunCalc.net or Topo Maps US have ads?

Neither SunCalc.net nor Topo Maps US shows ads.

### Which is updated more often, SunCalc.net or Topo Maps US?

SunCalc.net ships an update every 6 weeks, and Topo Maps US every 4 months. Most recently, SunCalc.net was updated on September 20, 2026 and Topo Maps US on September 18, 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.*