Comparison

Rock Collector vs TrainClicker Idle Evolution

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

TrainClicker Idle Evolution

Embark on a relaxing idle adventure where you tap to move trains, unlock engineers, and upgrade your engines. Travel through beautiful zones, gather gold, and progress through unique themed levels in this one-of-a-kind clicker game.

Highlights
  • Idle clicker gameplay
  • Train engine upgrades
  • Unlockable engineers
  • Day-night cycle
  • Multiple train cars and engines
  • Unique themed levels
Features
Read full description

Build, upgrade, automate, and evolve your own idle railway empire in Train Clicker Idle Evolution! Start with humble carts and grow your train into a powerful railway machine with steam engines, diesel locomotives, cargo cars, passenger cars, and more. Tap to move your train, earn gold, collect rewards, unlock engineers, run factories, and keep progressing through beautiful worlds. Train Clicker Idle Evolution combines idle clicker gameplay, train upgrades, factory automation, railway tycoon progression, and relaxing adventure into one unique train game. Whether you enjoy tapping, upgrading, collecting, automating production, or watching your railway grow over time, there is always something new to unlock. Features: • Tap to move your train and earn rewards • Upgrade from simple carts to powerful engines • Build long trains with multiple engines and cars • Run factories and produce valuable resources • Automate your railway empire with production systems • Unlock unique engineer characters • Use engineer skills to boost your progress • Collect train skins and customize your railway • Travel through beautiful zones and themed worlds • Earn gold, experience, and idle rewards • Progress through levels, upgrades, factories, and new train evolutions Your railway journey starts small, but every upgrade, factory, and engineer brings you closer to building the ultimate train empire. All aboard! Evolve your train and become a railway tycoon!

Screenshots

Rock Collector4 screens
TrainClicker Idle Evolution4 screens

Verdict

The call

The clearest difference is ads: TrainClicker Idle Evolution at none against Rock Collector's shown. TrainClicker Idle Evolution also leads on update cadence (weekly vs every 3 weeks) and review sentiment (53% vs 44%). Rock Collector's advantage is rating (4.7 vs 4.4). On price, in-app purchases, monetization model 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 10 one-off in-app purchases and TrainClicker Idle Evolution sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Rock Collector holds the better App Store score, 4.7 against 4.4. Both are backed by a comparable volume of ratings — 146 and 482 respectively. Written reviews complicate that: 44% of Rock Collector's written reviews are positive against 53% of TrainClicker Idle Evolution's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Rock Collector ships an update every 3 weeks, TrainClicker Idle Evolution weekly. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard5 real differences · 5 level
Rock Collector versus TrainClicker Idle Evolution: the parameters behind the verdict, then further details
ParameterRock CollectorTrainClicker Idle Evolution
PriceFreeFree
Rating4.7 (146 ratings) — better4.4 (482 ratings)
Positive reviews44.4% of reviews52.9% of reviews — better
Number of ratings146482 — better
Update frequencyEvery 3 weeksWeekly — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size92 MB362 MB
Age rating4+4+
DeveloperJeffrey KoersPixelRNG LLC

Customer experience

Rock Collector

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

TrainClicker Idle Evolution

All ratings482 ratings
Positive86.1%
Neutral5.0%
Negative8.9%
Written reviews17 reviews
Positive52.9%
Neutral17.6%
Negative29.4%

Bugs and requests

Rock Collector

Not enough reviews yet to summarise bugs or requests.

TrainClicker Idle Evolution

Reported bugs

5 issues
  • No prize after beating levels multiple times
  • Purchased coins not appearing
  • Game glitched, lost progress
  • Major bug with gold calculation (negative balance)
  • Bug where train could go very fast (now patched)

Requested features

5 requests
  • Add a button for continuous tapping
  • Improve train customization (cart order, naming)
  • Make the game more idle-friendly
  • Fix progression impediments like engine upgrade waits
  • Reintroduce or offer a speed-focused version

In-app purchases

10 purchases

Rock Collector

One-time10
  • 10 Rubies$0.99
  • 50 Rubies$4.99
  • Starter Pack$7.99
Show 7 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
10 purchases

TrainClicker Idle Evolution

One-time10
  • Handful of Gems$0.99
  • Special Deal$4.99
  • Pile of Gems$4.99
Show 7 more
  • Remove Ads$4.99
  • 2026 Goal Skin Bundle$6.99
  • Remove Ads And More$6.99
  • Bag of Gems$9.99
  • Crate of Gems$19.99
  • Box of Gems$49.99
  • Chest of Gems$99.99

Questions

Is Rock Collector free?
Rock Collector is free to download, with in-app purchases available.
Is TrainClicker Idle Evolution free?
TrainClicker Idle Evolution is free to download, with in-app purchases available.
Which has better reviews, Rock Collector or TrainClicker Idle Evolution?
Rock Collector is rated higher. Rock Collector averages 4.7 out of 5 from 146 ratings, while TrainClicker Idle Evolution averages 4.4 from 482 ratings.
Do Rock Collector or TrainClicker Idle Evolution have ads?
Rock Collector shows ads; TrainClicker Idle Evolution does not.
Which is updated more often, Rock Collector or TrainClicker Idle Evolution?
Rock Collector ships an update every 3 weeks, and TrainClicker Idle Evolution weekly. Most recently, Rock Collector was updated on November 2, 2026 and TrainClicker Idle Evolution on November 3, 2026.

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