Comparison

Shellkeep vs Ultrapool

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

Head to head
About

Shellkeep

Collect, merge, and battle unique cards with thousands of possibilities. Hunt for ultra-rare holographic Shinies and compete with other players in live auctions and club bounties. Build your ultimate collection and test your luck.

Highlights
  • Generate and collect thousands of cards
  • Hunt for ultra-rare holographic Shinies
  • Bid, deal, and sell cards
  • Join clubs to team up with collectors
  • Compete in live auctions and daily deals
  • No advertisements
Read full description

Generate and collect thousands of cards. Hunt the ultra-rares almost no one will ever own. Every card rolls two independent rarities, so there are 1,000 normal cards and 1,000 holographic Shinies to chase, 2,000 in all. The rarest are rarer than 1 in a million to pull. And every card has a 1 in 50 shot at being Shiny. GENERATE & DISCOVER Create new cards on a timer, then watch each one reveal. The rarity climbs as the card comes into focus, and the rarer it lands, the bigger the moment. HUNT SHINIES Every Shiny is holographic and 50 times rarer than its normal version. Completing the Shiny set is the ultimate flex. BID, DEAL & SELL Outbid real players in live auctions to snag the cards you're missing, grab limited daily deals, and sell your spare eggs back to the game for coins. JOIN A CLUB Team up with other collectors, pool your finds, and win weekly club bounties together. NO ADS Not one. Ever. Think you can beat the odds? Start your collection today.

About

Ultrapool

Experience a unique pool game with roguelite elements and wacky ball effects. Craft strategic builds and pull off incredible trickshots to impress the bartenders. Survive 10 rounds of arcade-style pool with a variety of unique ball abilities.

Highlights
  • Roguelite pool gameplay
  • Wacky ball abilities
  • Strategic build crafting
  • Arcade-style trickshots
  • 10-round survival mode
  • Ball combination mechanics
Features
Read full description

The pool bar is always open! Ultrapool is a colorful roguelike about playing pool with a bunch of wacky balls with crazy effects. Carefully craft a perfect build and get the craziest trickshots! Get comfy, choose a cocktail, and get ready for a very special game of pool. Assemble a triangle of balls with strange effects and get the sickest trickshots. The bartenders won't be easy to impress! Ultrapool is an arcade-y colorful roguelike that plays like a pool version of Balatro and Super Auto Pets. Pocketing balls gives you score, and extra score gives you money you can spend at the bar to buy and improve your set of balls. Try to survive 10 rounds! We got both! Easy to pick up pool mechanics: just get the balls in the holes! But as you discover the wacky abilities the balls have, you'll get new ideas of how to get your score ever higher. A ghost ball that reappears on the table? A chicken ball that lays spherical eggs? A bomb that explodes if you bump it too much? The Earth? Anything is possible (as long as it's round and it rolls nicely, no cubes allowed!) Once you think you know the game, the cocktail bar opens. Ask the bartender to mix any two balls and he will serve you something special! Some of these will feel like they should break the game wide open, but you'll need every edge you can get if you want to pull off an all nighter.

Screenshots

Shellkeep4 screens
Ultrapool4 screens

Verdict

The call

The clearest difference is monetization model: Ultrapool at free against Shellkeep's free with in-app purchases. Ultrapool also leads on chart position (#68 vs unranked) and ratings volume (122 vs 30). Shellkeep's advantage is rating (4.9 vs 4.6) and iOS requirement (15.6 vs 17.0). On price, review sentiment, update cadence and ads 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. Shellkeep sells 4 one-off in-app purchases and Ultrapool sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Shellkeep holds the better App Store score, 4.9 against 4.6. Both are backed by a comparable volume of ratings — 30 and 122 respectively. Written reviews point the same way: 91% of Shellkeep's written reviews are positive against 85% of Ultrapool's.

UpkeepUpdate frequency

Shellkeep ships an update weekly, Ultrapool every 4 days. The most recent releases landed on September 26, 2026 and September 30, 2026 respectively.

Scorecard5 real differences · 6 level
Shellkeep versus Ultrapool: the parameters behind the verdict, then further details
ParameterShellkeepUltrapool
PriceFreeFree
Rating4.9 (30 ratings) — better4.6 (122 ratings)
Positive reviews90.9% of reviews — better85.2% of reviews
Number of ratings30122 — better
Update frequencyWeeklyEvery 4 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree — better
Best chart rank—#68 — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better17.0
Further details — not scored
Size56 MB378 MB
Age rating4+12+
DeveloperHamlab ABoffbrand games

Customer experience

Shellkeep

All ratings30 ratings
Positive96.7%
Neutral0.0%
Negative3.3%
Written reviews11 reviews
Positive90.9%
Neutral0.0%
Negative9.1%

Ultrapool

All ratings122 ratings
Positive90.2%
Neutral2.5%
Negative7.4%
Written reviews61 reviews
Positive85.2%
Neutral3.3%
Negative11.5%

In-app purchases

4 purchases

Shellkeep

One-time4
  • Quick Gems$0.99
  • Small Gems$2.99
  • Big Gems$6.99
Show 1 more
  • Mega Gems$14.99
1 purchases

Ultrapool

One-time1
  • Unlock Full Game$5.99

Questions

Is Shellkeep free?
Shellkeep is free to download, with in-app purchases available.
Is Ultrapool free?
Ultrapool is free to download, with in-app purchases available.
Which has better reviews, Shellkeep or Ultrapool?
Shellkeep is rated higher. Shellkeep averages 4.9 out of 5 from 30 ratings, while Ultrapool averages 4.6 from 122 ratings.
Do Shellkeep or Ultrapool have ads?
Neither Shellkeep nor Ultrapool shows ads.
Which is updated more often, Shellkeep or Ultrapool?
Shellkeep ships an update weekly, and Ultrapool every 4 days. Most recently, Shellkeep was updated on September 26, 2026 and Ultrapool on September 30, 2026.

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