Comparison

Stockout Zero vs Crystal Cavern Idle Mine

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

Head to head
About

Stockout Zero

Features
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Stockout Zero is a simple incremental inventory game about turning tiny stock checks into unstoppable automation. Tap to check stock, earn money, buy upgrades, and build systems that push you closer to zero stockouts. At first, it is just a small store task. Soon, it becomes a full inventory operation. Features: - Simple tap-based gameplay - Upgrade-based progression - Automation systems - Fast clear leaderboards with Game Center - Daily, weekly, and all-time ranking challenges How fast can you reach Stockout Zero?

About

Crystal Cavern Idle Mine

Read full description

Crystal Cavern is an idle game with no sound at all. Tap the crystal in the middle of the screen and you earn crystals. That is the whole basic move. Spend them on buildings and the cave keeps earning every second, even while the app is closed. You can collect up to eight hours of it when you come back. ā–  No sound No music, no effects. If you cannot hear, or you are somewhere you cannot make noise, nothing is lost. Haptics are there instead. ā–  You choose what reads well Four text sizes. Five colour schemes, two of them maximum contrast — white on black and black on white. ā–  Twelve seams As you dig, the seam changes and the crystal shifts colour and shape. You start at Quartz; twelve layers lie below. Each rebirth opens a deeper one. ā–  Rebirth Melt everything down into cores. Each core adds +2% to your tap value and income, permanently. The deeper you dig, the more cores are left behind. ā–  Glowing orbs Now and then an orb drifts across the screen. Tap it before it fades for a bonus. The best one multiplies everything by five for thirty seconds. ā–  Built to be easy to use - Playable from a keyboard - Respects the reduce-motion setting - Progress saves itself on this device - A save code moves your progress to another device - Pause whenever you like; nothing accumulates while paused About adverts: a short video plays only when you claim a bonus. The game is fully playable without watching one. No advert is ever required to progress. Languages: 17 (English, Japanese, Chinese Simplified and Traditional, Korean, Spanish, French, German, Italian, Portuguese, Dutch, Polish, Russian, Turkish, Vietnamese, Thai, Indonesian), shown automatically in your iPhone's language.

Screenshots

Stockout Zero3 screens
Crystal Cavern Idle Mine4 screens

Verdict

The call

The clearest difference is price: Crystal Cavern Idle Mine at Free against Stockout Zero's $1.19. Crystal Cavern Idle Mine also leads on iOS requirement (16.0 vs 18.0). Stockout Zero's advantage is ads (none vs shown). On update cadence, in-app purchases and device support there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Crystal Cavern Idle Mine is free to download; Stockout Zero costs $1.19 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Stockout Zero ships an update weekly, Crystal Cavern Idle Mine every 6 days. The most recent releases landed on October 28, 2026 and October 21, 2026 respectively.

Scorecard3 real differences Ā· 3 level
Stockout Zero versus Crystal Cavern Idle Mine: the parameters behind the verdict, then further details
ParameterStockout ZeroCrystal Cavern Idle Mine
Price$1.19Free — better
Update frequencyWeeklyEvery 6 days — better
AdsNo — betterYes
In-app purchasesNoNo
DevicesiPhone, iPad — betteriPhone
Requires iOS18.016.0 — better
Further details — not scored
Size24 MB5 MB
Age rating4+4+
DeveloperMakoto FukuokaYoshihiko Okano

In-app purchases

None

Stockout Zero

No in-app purchases

None

Crystal Cavern Idle Mine

No in-app purchases

Questions

Is Stockout Zero free?
Stockout Zero costs $1.19, with no in-app purchases.
Is Crystal Cavern Idle Mine free?
Crystal Cavern Idle Mine is free to download, with no in-app purchases.
Do Stockout Zero or Crystal Cavern Idle Mine have ads?
Crystal Cavern Idle Mine shows ads; Stockout Zero does not.
Which is updated more often, Stockout Zero or Crystal Cavern Idle Mine?
Stockout Zero ships an update weekly, and Crystal Cavern Idle Mine every 6 days. Most recently, Stockout Zero was updated on October 28, 2026 and Crystal Cavern Idle Mine on October 21, 2026.

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