250+ iOS apps curated and reviewed
Every iPhone needs a few good geyserlog apps. We benchmark 250+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | $9.99 | — | No | No | Aug 2026 |
| 2 |  | Free | 4.1★ (14) | No | No | May 2026 |
| 3 |  | $3.99 | 5.0★ (2) | No | No | Aug 2026 |
| 4 |  | Free | — | No | No | May 2026 |
| 5 |  | Free | 5.0★ (2) | No | No | Aug 2026 |
| 6 |  | Free | 4.7★ (22K) | No | Yes | Aug 2026 |
| 7 |  | Free | 4.5★ (11) | Yes | Yes | Aug 2026 |
| 8 |  | Free | 5.0★ (10) | No | No | Jul 2026 |
Access a comprehensive database of geyser eruption and observation data. Explore daily activity, plan your visits with predictions, and contribute your own observations. Watch live geyser webcams and learn about these natural wonders.
Explore Yellowstone's Upper Geyser Basin with detailed information on over 40 geysers. Includes an offline map and eruption predictions for regularly erupting geysers to enhance your visit.
Get real-time alerts for earthquakes, tsunamis, and volcanic activity. Customize notifications based on magnitude and severity. View events on a map and access a recent events list.
Stay informed about seismic and volcanic activity worldwide with real-time alerts, detailed maps, and historical data. Track earthquakes, volcanic eruptions, and tsunamis from over 30 trusted sources. Customize notifications and explore rich visualizations.
Create atmospheric ghost box sessions with live word sweeps, EVP recording, and shareable timelines. This app is designed for entertainment and storytelling, offering various session moods and an AR lens for immersive experiences. All content is generated locally for fictional fun.
Get real-time, accurate air quality data with a live map, personalized alerts, and science-based guidance. Plan your day, reduce exposure, and protect your health with actionable insights.
Get real-time updates on Kilauea volcano activity, including eruption status, forecasts, and observatory messages. View live camera feeds, ground deformation data, and summit weather. Features AI-powered summaries and multi-language translation.
Control your geothermal heating and cooling system remotely with this WiFi-enabled platform. Monitor system performance, adjust temperatures across multiple zones, and track energy usage from any device. Receive alerts and service reminders for proactive maintenance.
Stay informed about seismic activity with real-time earthquake alerts and an interactive map. Customize notifications, access detailed event information, and utilize a built-in Emergency SOS feature for safety.
This app forecasts marine life abundance and underwater visibility at dive sites globally. Plan your dives with detailed daily updates, long-term climatology, and site-specific conditions to maximize your underwater experience.
Discover designated roadside pullouts and points of interest within Yellowstone National Park. This app identifies sights, provides maps, and allows searching for specific locations to enhance your travel experience.
Explore Earth from space with real-time satellite imagery and data overlays. Visualize atmospheric conditions, environmental changes, and human impact with interactive maps and augmented reality.
Collect, visualize, and analyze real-time sensor data for STEM education. Wirelessly connect sensors, capture images for analysis, and build custom displays. Share live data and create electronic lab journals for collaborative learning.
Receive instant alerts for seismic activity worldwide. Customize notifications by location and magnitude, and explore an interactive map with historical data. Enjoy a clean, ad-free interface for continuous monitoring.
Stay informed and prepared for earthquakes worldwide with real-time alerts and a live map. Includes emergency tools like a kit checklist and survival whistle. Offers customizable notifications and tsunami warnings.
Track seismic activity with a live map and detailed event views. Explore events with advanced filtering and geological context. Refines data from multiple sources for a clearer, more consistent experience.
This mobile application helps geologists record field observations, capture data like photos and sketches, and create geologic maps. It supports various geological subdisciplines and allows for offline use with data syncing capabilities.