Astronomy Pro vs Bone Zone
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Astronomy Pro
Explore the universe and learn about planets, solar systems, and galaxies. This educational app enhances general knowledge about space and our place within it.
- Explore the universe
- Learn about planets
- Discover solar systems
- Study galaxies
- Enhance general knowledge
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Discover the universe we live in! Learn about the planets, our solar system, our galaxy and many more. Improve your astronomy general knowledge! This app is educational as it helps you learn more about our universe.
Bone Zone
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Discover the prehistoric world hiding beneath your feet with Bone Zone — interactive geological maps that turn every hike into a journey through deep time. EXPLORE THE GEOLOGY AROUND YOU • Detailed geological maps for all 48 continental states • Formations colored by geologic age using international standard colors • GPS centers the map on your location and your state • Tap any formation to learn what it is, how it formed, and how old it is COULD YOU FIND A FOSSIL HERE? • Every formation gets a plain-language fossil verdict — from "Hot Spot" to "Wrong Rock" — based on its rock type and geological age • See documented fossil finds near the exact spot you tapped, from the Paleobiology Database's scientific records • Fossil pins show real discoveries: species, age, and taxonomy • Browse actual museum specimen photos and records from collections across the country (iDigBio) LEARN AS YOU EXPLORE • Interactive learning center covering rocks, ages, and fossil types • A geological timeline from the first life to the ice ages • Field safety guidelines and collecting ethics • Clear guidance on laws and land access — know before you dig BUILT FOR REAL ADVENTURES • State data downloads on demand and stays on your device • Perfect for rockhounds, students, educators, scout troops, and anyone curious about what's underfoot • Promotes responsible exploration and Leave No Trace principles FREE WITH ADS — REMOVE THEM FOREVER Bone Zone is free to use, supported by small banner ads that never cover the map. An optional one-time purchase removes all ads permanently. No subscriptions, no accounts. From shark teeth on beaches to ancient coral reefs in your local hills, start your journey through deep time today. Privacy: https://bone-zone.app/privacy-policy.html Terms: https://bone-zone.app/terms-of-service.html
Screenshots
Verdict
The clearest difference is price: Bone Zone at Free against Astronomy Pro's $3.99. Astronomy Pro's advantage is in-app purchases (none vs 1) and ads (none vs shown). On update cadence 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
Bone Zone is free to download; Astronomy Pro costs $3.99 up front. Bone Zone sells 1 in-app purchase, starting at $9.99 per year. Astronomy Pro asks for nothing beyond the download.
Astronomy Pro ships an update every 15 months, Bone Zone every 10 months. Both last shipped on October 12, 2026.
| Parameter | Astronomy Pro | Bone Zone |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 15 months | Every 10 months — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 18.2 |
| Further details — not scored | ||
| Size | 58 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Horea Bucerzan | Brandon Tate |
In-app purchases
Astronomy Pro
No in-app purchases
Bone Zone
- Bone Zone Premium3 Days trial$9.991 Year
Questions
Is Astronomy Pro free?
Is Bone Zone free?
Do Astronomy Pro or Bone Zone have ads?
Which is updated more often, Astronomy Pro or Bone Zone?
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