Comparison

Rock Crawler vs NinetyNine Game

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

Head to head
About

Rock Crawler

Experience realistic rock crawling with a powerful truck. Master precise throttle control to conquer challenging peaks and perform thrilling stunts on craggy terrain. This game offers an immersive off-road adventure.

Highlights
  • Realistic rock crawling physics
  • Precise throttle control
  • Climb on craggy rocks
  • Perform terrific stunts
  • Powerful truck simulation
Features
Read full description

Can you imagine a truck that climbs on rocks better and faster than humans? Meet Rock Crawler! This game pretty much resembles a real rock crawling: very precise throttle control is required to conquer some peaks. These big soft wheels allow you to climb on craggy rocks and perform terrific stunts! https://voodoo.io/terms

About

NinetyNine Game

Features
Read full description

Ninety-Nine is a game of nerve dressed up as arithmetic. Every card played adds to a shared tally. Take it over 99 and you're finished. That's the whole rule — and then the deck starts fighting back. A nine slams the tally straight to 99, whatever it was, and hands the wreckage to whoever plays next. An eight locks the suit, and everyone must follow or break. A ten drags the tally backwards. A four flips the direction of play. And a queen is wild — she copies any card you name, right up until somebody draws one from the deck and queens turn poisonous for the rest of the game. When you have nothing legal left, you have two choices. Skip, and owe two plays next turn. Or go to the well: two face-down cards you've never seen, one drawn at random. If it plays, you survive and draw two more. If it doesn't, you're out on the spot. Last player standing wins. • THREE OPPONENTS WITH REAL OPINIONS Casual plays reasonably and misses the killer line. Sharp defends its margin and reads the table. Ruthless hoards its brakes, weaponises the suit lock, and sets traps a turn ahead. They don't cheat — they can only see what you can. • BUILT TO BE FELT Custom haptic patterns for every event, from the flick of a card leaving your hand to the double-thump of a nine landing. The tally's tick rises in pitch as you close on 99, so you hear the danger before you read it. • EVERY CARD DRAWN IN CODE No stock art. Real pip layouts on the classic seven-row grid, engraved court cards, and a guilloche card back — all vector, all crisp at any size. • NEVER LOOK UP A RULE Cards you can't legally play are dimmed. Tap one and the game tells you exactly why. Each choice shows the tally it would produce, so you're making decisions, not doing sums. • PASS AND PLAY Two to six of you, one device. The screen covers itself between turns, so nobody sees anybody else's hand. Name every seat and hand the phone around. • TABLES YOUR WAY Two to six players. Hand sizes from five to twelve. An illustrated rulebook, lifetime stats, and eleven achievements to chase. No accounts. No ads. No in-app purchases. No internet connection — the app makes no network requests at all, and nothing you do leaves your device.

Screenshots

Rock Crawler3 screens
NinetyNine Game4 screens

Verdict

The call

The clearest difference is in-app purchases: NinetyNine Game at none against Rock Crawler's 10. NinetyNine Game also leads on ads (none vs shown) and update cadence (daily vs every 3 weeks). Rock Crawler's advantage is iOS requirement (14.0 vs 18.0). On price 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 Crawler sells 10 one-off in-app purchases. NinetyNine Game asks for nothing beyond the download.

UpkeepUpdate frequency

Rock Crawler ships an update every 3 weeks, NinetyNine Game daily. The most recent releases landed on November 6, 2026 and October 25, 2026 respectively.

Scorecard4 real differences · 6 level
Rock Crawler versus NinetyNine Game: the parameters behind the verdict, then further details
ParameterRock CrawlerNinetyNine Game
PriceFreeFree
Rating4.4 (33K ratings) — better—
Positive reviews22.5% of reviews—
Number of ratings33K — better—
Update frequencyEvery 3 weeksDaily — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS14.0 — better18.0
Further details — not scored
Size551 MB4 MB
Age rating4+17+
DeveloperVoodooAmir Jabbari

Bugs and requests

Rock Crawler

Reported bugs

3 issues
  • Levels not loading properly
  • Upgrades not saving
  • Ranking system issues

Requested features

4 requests
  • More vehicle variety
  • Longer and more challenging levels
  • Ability to restore progress
  • Option to disable ads

NinetyNine Game

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

Rock Crawler

One-time10
  • Starter Cash Bundle$2.99
  • No ads$4.99
  • Novice Treasure Chest$4.99
Show 7 more
  • Novice Gold Hoard$4.99
  • Starter Pack$7.99
  • Journeyman's Gold Trove$9.99
  • Journeyman's Cash Coffer$9.99
  • Expert's Crystal Cache$14.99
  • Expert's Wealth Trove$19.99
  • Premium Pack$24.99
None

NinetyNine Game

No in-app purchases

Questions

Is Rock Crawler free?
Rock Crawler is free to download, with in-app purchases available.
Is NinetyNine Game free?
NinetyNine Game is free to download, with no in-app purchases.
Do Rock Crawler or NinetyNine Game have ads?
Rock Crawler shows ads; NinetyNine Game does not.
Which is updated more often, Rock Crawler or NinetyNine Game?
Rock Crawler ships an update every 3 weeks, and NinetyNine Game daily. Most recently, Rock Crawler was updated on November 6, 2026 and NinetyNine Game on October 25, 2026.

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