Comparison

Gemma GPS vs Trail Explorer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Gemma GPS

Navigate the outdoors with a digital compass that conserves battery. Save locations and get guided back to them with a simple arrow. Ideal for travelers, hikers, sailors, and geocachers who venture off the beaten path.

Highlights
  • Digital compass
  • Battery saving mode
  • Save locations
  • Night vision mode
  • Navigation guidance
Features
Read full description

Precision GPS waypoint navigation for professionals. Capture locations. Convert coordinates. Navigate back. FEATURES: • Save waypoints with geodetic precision • Six coordinate formats: Decimal, DDM, DMS, UTM, MGRS, Maidenhead • Compass navigation with bearing and distance • Organize with folders and routes • Import and export GPX files • Full JSON backup and restore • Night vision mode for dark adaptation • No ads, no tracking COORDINATE FORMATS: • Decimal Degrees (37.7749°) • Degrees Decimal Minutes (37° 46.497' N) • Degrees-Minutes-Seconds (37°46'29.7"N) • UTM (10S 551309 4177447) • MGRS (10SEG 51309 77447) • Maidenhead Grid (CM87ss) Perfect for search and rescue, surveying, geocaching, amateur radio, aviation, marine navigation, and anyone who needs real coordinates. Every feature is free. Optional support subscriptions help fund continued development. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Trail Explorer

Features
Read full description

Trail Explorer is a web and mobile app to explore any destination, discover new places and trails, plan adventures, and enjoy the outdoors. For any point on the map, Trail Explorer helps you find the best spots for hiking, sightseeing, climbing, kayaking, scuba, and many more, pairing well with any adventure style and adrenaline level. We compile extensive lists of thrilling experiences by country and category, and offer a set of tools to research any location: • Millions of hiking trails and Places of Interest • Multiple map types to match your adventure style • 3D maps: - topo - satellite - city • offline 2D and 3D maps: • Trail analysis and Elevation Profile • 3D flyover along a trail or around a selected landmark • Hike Along tool • Drive Mode in 3D • AI chat • Local video and nearby webcams • The weather • Adventure sports and travel news… Trail Explorer helps you understand any environment even before you go, build awareness of the terrain, the level of difficulty, time, gear, and resources required to reach your adventure objective. We aggregate data from a wide range of sources to help you plan a safer, and more enjoyable experience. Top features: ▶ Search millions of hiking trails and POIs — explore, save, and share with a single tap ▶ Choose from a range of maps — hiking, running, cycling, and more ▶ 3D maps — topo, satellite, and city views ▶ Browse a giant collection of thrilling experiences — sourced by country and category ▶ Explore any place in detail — hiking trails, attractions, adventure options, huts, hotels, and more ▶ Generate a hiking snapshot of any location — popular trails and geo-POIs: peaks, lakes, volcanoes, outdoor sports, videos, webcams, and more ▶ Drive Mode in 3D — explore routes with rich POI detail, adventure hotspots, and intel from AI, Wikipedia, video search, webcams, and weather ▶ 3D trail flyovers and circular landmark animations — realistic route previews and mountain/natural landmark peeks ▶ Hike Along mode — live 3D position tracking with trail data along the elevation profile ▶ Tap any point on the map — instant info on trails, POIs, weather, save and share routes or locations ▶ Search POIs in 20+ categories — huts, water sources, gas stations, geo-objects, and more ▶ Tap any trail on the map — detailed stats, charts, and trail highlights ▶ Tap any POI marker — detailed info, save, share, or generate a hiking snapshot ▶ Check the weather forecast directly from the map ▶ Read news and videos across 20+ categories — hiking, mountaineering, climbing, biking, kayaking, scuba, sailing/boating, adventure, extreme, and many more

Screenshots

Gemma GPS4 screens
Trail Explorer4 screens

Verdict

The call

The clearest difference is in-app purchases: Trail Explorer at none against Gemma GPS's 2. Trail Explorer also leads on update cadence (every 8 days vs every 2 months) and iOS requirement (16.4 vs 18.0). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Gemma GPS sells 2 in-app purchases, starting at $199.99 per year. Trail Explorer asks for nothing beyond the download.

UpkeepUpdate frequency

Gemma GPS ships an update every 2 months, Trail Explorer every 8 days. The most recent releases landed on October 14, 2026 and October 11, 2026 respectively.

Scorecard3 real differences · 7 level
Gemma GPS versus Trail Explorer: the parameters behind the verdict, then further details
ParameterGemma GPSTrail Explorer
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews85.7% of reviews—
Number of ratings1 — better—
Update frequencyEvery 2 monthsEvery 8 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS18.016.4 — better
Further details — not scored
Size54 MB72 MB
Age rating4+4+
DeveloperPatrick TudorEvgueni Stoilkov

In-app purchases

2 purchases

Gemma GPS

Subscriptions2
  • Gemma GPS Pro Support$199.991 Year
  • Gemma GPS Enterprise Support$499.991 Year
None

Trail Explorer

No in-app purchases

Questions

Is Gemma GPS free?
Gemma GPS is free to download, with in-app purchases available.
Is Trail Explorer free?
Trail Explorer is free to download, with no in-app purchases.
Do Gemma GPS or Trail Explorer have ads?
Neither Gemma GPS nor Trail Explorer shows ads.
Which is updated more often, Gemma GPS or Trail Explorer?
Gemma GPS ships an update every 2 months, and Trail Explorer every 8 days. Most recently, Gemma GPS was updated on October 14, 2026 and Trail Explorer on October 11, 2026.

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