AspectAvy vs GnarCheck
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AspectAvy
This app provides real-time avalanche safety information and tools for backcountry enthusiasts. It features dynamic slope angle shading, live forecasts, and LiDAR mapping to help users assess risk and make informed decisions in avalanche terrain.
- Dynamic slope angle shading
- Live avalanche and weather forecasts
- LiDAR mapping
- Safety checklists
- Built-in slope angle meter
- Route tracking and sharing
Read full descriptionHide full description
At AspectAvy, our mission is to save lives from avalanches. Which is why we developed a whole new class of avalanche safety gear: preventive avalanche safety gear. AspectAvy Features: DYNAMIC SLOPE ANGLE SHADING This feature separates AspectAvy and makes us an avalanche safety tool. Our maps update slope angle shading in real-time based on the conditions you’re experiencing on the mountain. Even in airplane mode, we visualize the risk factor, helping to relieve decision fatigue, and giving you an objective picture of the risk level around your immediate location. LIVE AVALANCHE AND WEATHER FORECASTS We incorporate up-to-the-minute live avalanche and weather forecasts right into the app. The forecasts and maps are stored locally on your phone, meaning you have access to the most recent downladed information. Closing the gap between planning and touring, and ensuring you have the most updated forecast information available. INDUSTRY-LEADING LiDAR MAPPING Our rock-solid, fast-loading LiDAR maps are stored locally on your phone, meaning you’re not straining for a signal when decisions matter most. Accurate to 3-meter resolution, you’ll see the terrain and risk factor around your precise location. Giving you control of the slopes you ski, and putting peace of mind in your pocket. TRAILHEAD AND DROP-IN SAFETY CHECKS Our comprehensive and interactive safety checklists help ensure your preparedness, grounding your group in proper avalanche safety best practices. BUILT-IN SLOPE ANGLE METER Our built-in slope angle meter helps you verify slope angle so you know where to ski based on real-time risk levels. It also calculates the length of avalanche run-out zones, keeping you safe at the top of the slope, and the bottom when you’re traveling through avalanche terrain. ROUTE TRACKING AND SHARING Industry standard GPS route tracking shows exactly where your tour traveled, and makes it easy to share the route with everyone in your group. You can even see when and where you were close to avalanche danger, and where you avoided higher-risk terrain. DATA-DRIVEN SAFETY Our algorithm was built on decades of avalanche safety data. By harnessing this data, AspectAvy provides you with clear and precise route recommendations based on avalanche statistics. We pinpoint low-risk slopes – with risk levels akin to driving a car – empowering you to make informed choices with confidence, ensuring an exciting, yet safe backcountry skiing experience. Not available in Alaska or New Hampshire Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
GnarCheck
Get real-time trail status, hazard alerts, and user-submitted updates for mountain biking. Plan your rides with confidence by knowing if trails are open, closed, muddy, or dry before you go.
- Live trail status updates
- Real-time weather and surface conditions
- User-submitted reports and photos
- Customizable notifications and alerts
- Trail finder with maps and filters
- Community-driven information
Read full descriptionHide full description
Stay ahead of trail conditions with GnarCheck—the ultimate tool for mountain bikers who want reliable, up-to-date info before they hit the trail. Whether you're planning an epic ride or just a quick cruise, GnarCheck delivers the intel you need: real-time trail status, posted hazards, closures, and user-submitted updates. Key Features: Live Trail Status: See whether trails are open, closed, muddy, dry, or in any custom status your local trail managers report. Real-Time Conditions: Weather, trail surface, recent rainfall, and hazard alerts so you can decide if it’s rideable. User Reports & Photos: Trail users submit updates with photos—so you can see what conditions really look like. Notifications & Alerts: Get notified when trails you're interested in change status or have new reports. Trail Finder: Browse trails by location, see maps, filter by difficulty or conditions. Community Driven: Feedback from riders in your area helps keep everyone informed. Why GnarCheck? Riding without current trail info is risky. Mud, closure, flood, snow, or damage can turn a planned ride into a wasted trip—or worse. GnarCheck arms you with the knowledge to ride smart. Who Is It For? - Daily and weekend riders who want up-to-date info - Trail maintainers who want to share trail status - Mountain bike clubs and organizations - Anyone who wants to avoid surprises on the trail What’s New: - New real-time status alerts - Improved photo upload support - Better trail filtering and map view - Bug fixes & performance improvements Stay tuned—more features to follow. Ride hard, ride smart.
Screenshots
Verdict
The clearest difference is rating: GnarCheck at 5.0 against AspectAvy's 3.8. GnarCheck also leads on update cadence (every 2 weeks vs every 2 months) and device support (3 vs 1). AspectAvy's advantage is ratings volume (37 vs 3). On price, ads, in-app purchases and monetization model 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
GnarCheck holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: AspectAvy has 37 ratings behind it against 3, so its average is the more settled of the two.
AspectAvy ships an update every 2 months, GnarCheck every 2 weeks. The most recent releases landed on September 29, 2026 and September 24, 2026 respectively.
| Parameter | AspectAvy | GnarCheck |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (37 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 37 — better | 3 |
| Update frequency | Every 2 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 83 MB | 9 MB |
| Age rating | 17+ | 4+ |
| Developer | Aspect Avy Inc | Oscar Salcedo |
Customer experience
AspectAvy
GnarCheck
In-app purchases
AspectAvy
No in-app purchases
GnarCheck
No in-app purchases









