Comparison

Kepler's Laws vs Bone Zone

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

Head to head
About

Kepler's Laws

Explore animated visualizations and interactive tasks designed to help you grasp Kepler's laws of planetary motion. This educational tool offers a clear way to understand complex astronomical concepts through visual aids and practical exercises.

Highlights
  • Animated visualizations
  • Interactive tasks
  • Understanding planetary motion
  • Educational tool
  • Astronomy concepts
Features
Read full description

Animations and tasks that facilitate the understanding of Kepler's laws.

About

Bone Zone

Features
Read full description

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

Bone Zone4 screens

Verdict

The call

The clearest difference is in-app purchases: Kepler's Laws at none against Bone Zone's 1. Kepler's Laws also leads on ads (none vs shown) and iOS requirement (12.0 vs 18.2). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Bone Zone sells 1 in-app purchase, starting at $9.99 per year. Kepler's Laws asks for nothing beyond the download.

UpkeepUpdate frequency

Kepler's Laws ships an update every 7 months, Bone Zone every 10 months. The most recent releases landed on October 12, 2026 and October 28, 2026 respectively.

Scorecard3 real differences · 6 level
Kepler's Laws versus Bone Zone: the parameters behind the verdict, then further details
ParameterKepler's LawsBone Zone
PriceFreeFree
Rating1.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 7 months — betterEvery 10 months
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPadiPhone, iPad — better
Requires iOS12.0 — better18.2
Further details — not scored
Size16 MB8 MB
Age rating4+4+
DeveloperVladimir VascakBrandon Tate

In-app purchases

None

Kepler's Laws

No in-app purchases

1 purchases

Bone Zone

Subscriptions1
  • Bone Zone Premium3 Days trial$9.991 Year

Questions

Is Kepler's Laws free?
Kepler's Laws is free to download, with no in-app purchases.
Is Bone Zone free?
Bone Zone is free to download, with in-app purchases available.
Do Kepler's Laws or Bone Zone have ads?
Bone Zone shows ads; Kepler's Laws does not.
Which is updated more often, Kepler's Laws or Bone Zone?
Kepler's Laws ships an update every 7 months, and Bone Zone every 10 months. Most recently, Kepler's Laws was updated on October 12, 2026 and Bone Zone on October 28, 2026.

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