rare numbers vs Shellkeep
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
rare numbers
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this game started out as a joke. it's still that. but it's also fun. the revolutionary app for number enthusiasts. you open packs to collect rare numbers. guess which is most rarest. you spin the penny slot for singles. you sell numbers you don’t want. trade your numbers. share your numbers. battle with your numbers. climb the leaderboard. chatgpt said it's got 'strategy if you squint'.
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.
Screenshots
Verdict
The clearest difference is in-app purchases: rare numbers at none against Shellkeep's 4. Shellkeep's advantage is ads (none vs shown) and update cadence (weekly vs every 4 months). On price, device support and iOS requirement 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. rare numbers asks for nothing beyond the download.
rare numbers ships an update every 4 months, Shellkeep weekly. The most recent releases landed on October 1, 2026 and October 18, 2026 respectively.
| Parameter | rare numbers | Shellkeep |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.9 (31 ratings) — better |
| Positive reviews | — | 90.0% of reviews |
| Number of ratings | — | 31 — better |
| Update frequency | Every 4 months | Weekly — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.6 |
| Further details — not scored | ||
| Size | 13 MB | 58 MB |
| Age rating | 4+ | 4+ |
| Developer | Kevin Griffing | Hamlab AB |
In-app purchases
rare numbers
No in-app purchases
Shellkeep
- Quick Gems$0.99
- Small Gems$2.99
- Big Gems$6.99
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- Mega Gems$14.99
Questions
Is rare numbers free?
Is Shellkeep free?
Do rare numbers or Shellkeep have ads?
Which is updated more often, rare numbers or Shellkeep?
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