Comparison

DeepTime for Geology vs Hutton App

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

Head to head
About

DeepTime for Geology

Explore an interactive geological time scale with detailed information on each unit, including GSSP definitions and color codes. Search for terms and view GSSPs on a global map. Ideal for geologists, students, and Earth history enthusiasts.

Highlights
  • Interactive geological time scale
  • Detailed GSSP definitions
  • CMYK and RGB color codes
  • Searchable by name or age
  • Global GSSP map integration
  • Tips for using time terms
Features
Read full description

DeepTime puts geological time at your fingertips. DeepTime is a full interactive version of the latest geological time scale: tap on any time unit to see more detail about it, including how its GSSP (golden spike) is defined. It even has the CMYK and RGB color codes for every time unit, great for when you need to have the right color for a map or chart. Even more, it is completely searchable by name or age. Come across an unfamiliar time term in an older paper? Search for it, and you'll see how it relates to the modern time scale.  What's more is that all the GSSPs (the golden spikes) are shown on a gorgeous geological map of the world (courtesy of macrostrat.org), which shows their context in stunning detail. Tips for using time terms are also included with simple examples. Whether you are a geologist, a student, a science writer, or just a fan of Earth history, DeepTime will become your go-to resource for understanding geological time.

About

Hutton App

Explore Earth's geologic wonders with this comprehensive field guide. Identify rocks and minerals using AI or manual methods, access professional geologic maps, and discover over 32,000 rockhounding sites. Document your expeditions with GPS-tagged notes and photos, and connect with a global community of geology enthusiasts.

Highlights
  • Professional geologic maps
  • Real-time data updates
  • AI rock and mineral identification
  • Manual identification mode
  • 32,000+ rockhounding sites
  • GPS-tagged trip documentation
  • Integrated geology dictionary
Features
Read full description

Unlock Earth’s geologic wonders with Hutton. Whether you are a seasoned geologist, a student, or a weekend rockhound, Hutton turns your smartphone into an easy-to-use, comprehensive geology field guide. Named after the father of modern geology, James Hutton, our app bridges the gap between deep scientific data and the joy of outdoor discovery. Explore professional geologic maps Powered by Macrostrat integration, Hutton provides a deep look at the ground beneath you. • Real-Time Data: View interpretative geologic maps that update as you hike, climb, or drive. • Formation Insights: Explore geologic units to learn about the surrounding rock’s age, lithology (rock type), formation, and stratigraphic name. • Offline Access: Headed off-grid? Download maps and take the world’s geology with you, even without cell service. Identify rocks and minerals Never leave a mystery stone behind. Hutton offers a dual-approach to identification: • Instant AI ID: Snap a photo for high-speed identification trained on thousands of verified mineral specimens. • The "Scientific Method" Mode: If you want to be certain, Hutton guides you through a manual testing prompt. Answer questions about Hardness (Mohs Scale), Luster, Streak, and Cleavage to arrive at a professional-grade identification. It’s not just an ID—it’s a geology lesson. Discover the ultimate rockhounding companion Find your next treasure with our database of 32,000+ rockhounding sites. • Know Before You Go: Get detailed info on what minerals are found at each site (Agates, Geodes, Quartz, and more). • Site Insights: Each rockhounding location includes AI-generated identification tips, collector notes, and geological summaries to help you know what to look for. Document your journey • Document your expeditions with our "Trips" feature. Save photos of outcrops and write field notes directly to your GPS-tagged path. • At the end of your journey, Hutton generates a beautiful, organized report summarizing your discoveries and the geologic formations you traversed. Who is Hutton for? Outdoor Enthusiasts: Add a new layer of depth to your adventures. It’s like having a professional geologist at your side. Students & Educators: A powerful companion for geology field camps. Turn every hike into a laboratory. Hobbyist Rockhounds: Use our site guides and ID tools to build a world-class collection. Professional Geologists: A quick-reference tool for stratigraphic units and a digital backup for field observations. A global geology community Virtual Collection: Catalog your finds in a beautiful digital gallery and photo album. Geology Dictionary: Master the terminology of Earth Science with an integrated glossary of thousands of terms. Community Hub: Share your trip reports, ask questions, and connect with a community that shares your passion for the Earth. Frequently asked questions • Does it work in remote areas? Yes! Our offline mapping and trip tracking are designed for remote field work. • How accurate is the identification? Our AI is constantly learning, but our "Physical Test" mode ensures you have the tools to verify every find personally. • Is my data private? Your field notes and trip locations are yours alone. You only share what you choose to post to the Community Tab. Download Hutton today and uncover the stories written in stone. Terms of Use: https://node-js-template-geokidzinfo.replit.app/terms Privacy Policy: https://node-js-template-geokidzinfo.replit.app/privacy

Screenshots

DeepTime for Geology3 screens
Hutton App4 screens

Verdict

The call

The clearest difference is in-app purchases: DeepTime for Geology at none against Hutton App's 3. DeepTime for Geology also leads on ads (none vs shown) and ratings volume (8 vs 2). Hutton App's advantage is update cadence (every 9 days vs every 3 months) and iOS requirement (15.1 vs 26.0). On price, rating 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. Hutton App sells 3 in-app purchases, starting at $5.99 per month. DeepTime for Geology asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for DeepTime for Geology against 5.0 for Hutton App. Both are backed by a comparable volume of ratings — 8 and 2 respectively.

UpkeepUpdate frequency

DeepTime for Geology ships an update every 3 months, Hutton App every 9 days. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

Scorecard6 real differences · 4 level
DeepTime for Geology versus Hutton App: the parameters behind the verdict, then further details
ParameterDeepTime for GeologyHutton App
PriceFreeFree
Rating5.0 (8 ratings)5.0 (2 ratings)
Positive reviews80.0% of reviews—
Number of ratings8 — better2
Update frequencyEvery 3 monthsEvery 9 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS26.015.1 — better
Further details — not scored
Size1 MB61 MB
Age rating4+4+
DeveloperHunt Mountain SoftwareGeoKidz LLC

Customer experience

DeepTime for Geology

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive80.0%
Neutral20.0%
Negative0.0%

Hutton App

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

DeepTime for Geology

No in-app purchases

3 purchases

Hutton App

Subscriptions3
  • Hutton Premium Monthly3 Days trial$5.991 Month
  • Hutton Premium Six month3 Days trial$29.996 Months
  • Hutton Yearly Monthly3 Days trial$47.991 Year

Questions

Is DeepTime for Geology free?
DeepTime for Geology is free to download, with no in-app purchases.
Is Hutton App free?
Hutton App is free to download, with in-app purchases available.
Which has better reviews, DeepTime for Geology or Hutton App?
DeepTime for Geology and Hutton App are both rated 5.0 out of 5 on the App Store, from 8 and 2 ratings respectively.
Do DeepTime for Geology or Hutton App have ads?
Hutton App shows ads; DeepTime for Geology does not.
Which is updated more often, DeepTime for Geology or Hutton App?
DeepTime for Geology ships an update every 3 months, and Hutton App every 9 days. Most recently, DeepTime for Geology was updated on November 3, 2026 and Hutton App on October 30, 2026.

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