Shellkeep vs Ultrapool
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
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.
- 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
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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.
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.
- Roguelite pool gameplay
- Wacky ball abilities
- Strategic build crafting
- Arcade-style trickshots
- 10-round survival mode
- Ball combination mechanics
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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
Verdict
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
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.
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.
Shellkeep ships an update weekly, Ultrapool every 4 days. The most recent releases landed on September 26, 2026 and September 30, 2026 respectively.
| Parameter | Shellkeep | Ultrapool |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (30 ratings) — better | 4.6 (122 ratings) |
| Positive reviews | 90.9% of reviews — better | 85.2% of reviews |
| Number of ratings | 30 | 122 — better |
| Update frequency | Weekly | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free — better |
| Best chart rank | — | #68 — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 56 MB | 378 MB |
| Age rating | 4+ | 12+ |
| Developer | Hamlab AB | offbrand games |
Customer experience
Shellkeep
Ultrapool
In-app purchases
Shellkeep
- Quick Gems$0.99
- Small Gems$2.99
- Big Gems$6.99
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- Mega Gems$14.99
Ultrapool
- Unlock Full Game$5.99









