# CalTopo vs Digly

The clearest difference is rating: CalTopo at 4.8 against Digly's 4.2. CalTopo also leads on in-app purchases (none vs 2) and ratings volume (7.6K vs 6). Digly's advantage is review sentiment (83% vs 56%). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Digly sells 2 in-app purchases, starting at $2.99 per month. CalTopo asks for nothing beyond the download.

CalTopo holds the better App Store score, 4.8 against 4.2. That said, the two scores are not equally well evidenced: CalTopo has 7.6K ratings behind it against 6, so its average is the more settled of the two. Written reviews complicate that: 56% of CalTopo's written reviews are positive against 83% of Digly's, so the app with the better star average is not the one people write more warmly about.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | CalTopo | Digly |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (7.6K ratings)](https://appshunter.io/ios/app/caltopo-backcountry-mapping/id1460038458/reviews)** | [4.2 (6 ratings)](https://appshunter.io/ios/app/digly/id6763395259/reviews) |
| Number of ratings | **7.6K** | 6 |
| Positive reviews | 56.5% of reviews | **83.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | **Free** | Freemium |
| Best chart rank | **#111** | — |
| Size | 165 MB | 15 MB |
| Requires iOS | **16.0** | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [CalTopo LLC](https://appshunter.io/developer/1460038457) | [METTE HAUGEN](https://appshunter.io/developer/1894289240) |

## What reviewers say

### CalTopo

[App page](https://appshunter.io/ios/app/caltopo-backcountry-mapping/id1460038458)

**Currently charting:** #111 Top Free · Navigation (US App Store)

Plan and navigate off-grid adventures with detailed offline maps and real-time weather forecasts. Trusted by professionals, this app offers seamless syncing and collaborative planning for backcountry pursuits.

**Highlights:** Offline map downloads, Satellite imagery, Route planning, GPS tracking, Weather forecasting, Collaborative map sharing, Slope angle shading

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Powerful mapping features
- 💡 Extensive data layers
- 👍 Detailed trail and terrain information
- 👍 Useful for SAR operations
- 👍 Great for planning outdoor adventures

**What reviewers complain about**

- 🐛 Buggy and unstable mobile app
- 🐛 Maps not always loading properly
- 🐛 Slow map rendering
- 🔋 High battery consumption
- 👎 Difficult to use for casual users

**Reported bugs**

- Trails and tracks disappearing
- Coordinate display issues
- Frequent app crashes and freezes
- Incompatibility with older devices

**Requested features**

- Add 3D map view
- Implement route snapping to trails
- Improve offline map download capabilities
- Add photo geotagging functionality
- Implement course-up map orientation


### Digly

[App page](https://appshunter.io/ios/app/digly/id6763395259)

This app helps metal detectorists log and map their discoveries. Record GPS coordinates, depth, and photos of each find, and track your search routes on a map. It offers customizable categories, weather data, and export options for your findings.

**Highlights:** Log finds with GPS, depth, and photos, Track search routes on a map, Customizable find categories, View weather data, Export data as PDF or CSV, Real-time group searching (Pro)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Digly Pro Monthly | $2.99 | per month |
| Digly Pro Yearly | $19.99 | per year |


## Frequently asked questions

### Is CalTopo free?

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

### Is Digly free?

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

### Which has better reviews, CalTopo or Digly?

CalTopo is rated higher. CalTopo averages 4.8 out of 5 from 7.6K ratings, while Digly averages 4.2 from 6 ratings.

### Do CalTopo or Digly have ads?

Neither CalTopo nor Digly shows ads.

### Which is updated more often, CalTopo or Digly?

CalTopo ships an update every 2 weeks, and Digly every 2 weeks. Most recently, CalTopo was updated on October 26, 2026 and Digly on October 24, 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.*