Comparison

Rock Collector vs Gemstone Tree

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

Head to head
About

Rock Collector

Experience the thrill of accumulating vast quantities of rocks in this idle incremental game. Start a rock business, purchase automated collectors, and upgrade your operations to achieve astronomical rock counts. Discover gems and pet rocks to further boost your profits and become a rock tycoon.

Highlights
  • Collect insane amounts of rocks
  • Purchase miners and machines
  • Level up and complete milestones
  • Collect gems to boost profits
  • Attract pet rocks for profit boosts
  • Become a rock tycoon
Features
Read full description

Ever dreamed of having an insane amount of rocks? Neither have I, but it's fun. This game will let you experience how it feels to collect insane amounts of rocks. Why? Because it's fun. Why stop at a million rocks if you could have trillions, quintillions or even quattuorseptuagintillions of rocks. Starting your own rock business is easy. Collect rocks, purchase miners, heavy machines, laser drills and many more to collect rocks for you, sit back and watch your amount of rocks grow and grow. Level up, complete milestones and purchase upgrades to increase your profits. The more rocks you earn, the better. Besides rocks you can also collect gems. Gems are beautifully colored shiny rocks which can be used to boost your profits in various ways. Large amounts of rocks will attract pet rocks, these are cute little rock-like creatures that will boost your profits even further, giving you the opportunity to earn insane amounts of rocks. Excited yet? Start your business today and become the first ever rock tycoon!

About

Gemstone Tree

Cultivate a magical gemstone tree to generate precious jewels and unlock a miniature world. This relaxing idle game allows you to simply watch your tree grow and discover the unfolding universe beneath it.

Highlights
  • Grow a gemstone tree
  • Earn jewels
  • Expand a new world
  • Healing idle gameplay
  • Discover a miniature universe
Read full description

Discover a mysterious gemstone tree and the tiny little world which unfolds beneath it. Grow your tree to earn jewels and expand a whole new world. In a corner of the great wide universe lies a beautiful green planet home to a mysterious tree with the power to create jewels. Just sit back and relax as you watch your lovely gemstone tree grow in this healing idle game.

Screenshots

Rock Collector4 screens
Gemstone Tree3 screens

Verdict

The call

The clearest difference is rating: Rock Collector at 4.7 against Gemstone Tree's 3.9. Rock Collector also leads on update cadence (every 3 weeks vs every 8 months) and ratings volume (146 vs 17). Gemstone Tree's advantage is in-app purchases (none vs 11). On price, review sentiment, ads 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. Rock Collector sells 11 one-off in-app purchases. Gemstone Tree asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Rock Collector holds the better App Store score, 4.7 against 3.9. That said, the two scores are not equally well evidenced: Rock Collector has 146 ratings behind it against 17, so its average is the more settled of the two. Written reviews point the same way: 44% of Rock Collector's written reviews are positive against 43% of Gemstone Tree's.

UpkeepUpdate frequency

Rock Collector ships an update every 3 weeks, Gemstone Tree every 8 months. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.

Scorecard5 real differences · 5 level
Rock Collector versus Gemstone Tree: the parameters behind the verdict, then further details
ParameterRock CollectorGemstone Tree
PriceFreeFree
Rating4.7 (146 ratings) — better3.9 (17 ratings)
Positive reviews44.4% of reviews — better42.9% of reviews
Number of ratings146 — better17
Update frequencyEvery 3 weeks — betterEvery 8 months
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.014.0 — better
Further details — not scored
Size92 MB71 MB
Age rating4+9+
DeveloperJeffrey KoersGlobalGear Co. Ltd.

Customer experience

Rock Collector

All ratings143 ratings
Positive93.7%
Neutral2.1%
Negative4.2%
Written reviews9 reviews
Positive44.4%
Neutral11.1%
Negative44.4%

Gemstone Tree

All ratings17 ratings
Positive64.7%
Neutral11.8%
Negative23.5%
Written reviews7 reviews
Positive42.9%
Neutral14.3%
Negative42.9%

In-app purchases

11 purchases

Rock Collector

One-time11
  • 10 Rubies$0.99
  • 50 Rubies$4.99
  • Starter Pack$7.99
Show 8 more
  • 110 Rubies$9.99
  • Time Warps Pack$14.99
  • Large Time Warps Pack$14.99
  • Super Multiplier Pack$14.99
  • Jack of All Trades Pack$14.99
  • 240 Rubies$19.99
  • MEGA Pack$29.99
  • 625 Rubies$49.99
None

Gemstone Tree

No in-app purchases

Questions

Is Rock Collector free?
Rock Collector is free to download, with in-app purchases available.
Is Gemstone Tree free?
Gemstone Tree is free to download, with no in-app purchases.
Which has better reviews, Rock Collector or Gemstone Tree?
Rock Collector is rated higher. Rock Collector averages 4.7 out of 5 from 146 ratings, while Gemstone Tree averages 3.9 from 17 ratings.
Do Rock Collector or Gemstone Tree have ads?
Both Rock Collector and Gemstone Tree show ads.
Which is updated more often, Rock Collector or Gemstone Tree?
Rock Collector ships an update every 3 weeks, and Gemstone Tree every 8 months. Most recently, Rock Collector was updated on October 24, 2026 and Gemstone Tree on October 7, 2026.

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