Kingyo Poi vs Pasterium C
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Kingyo Poi
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Kingyo Poi is a goldfish scooping game that brings a tiny Japanese summer festival to your pocket. Drag the poi through the water, then flick upward to scoop. In each 60-second round, the poi slowly weakens, so every catch feels delicate and exciting. Features • Simple controls: drag to move, flick up to scoop • Catch and collect 20 kinds of goldfish, including rare varieties • Quick 60-second sessions you can enjoy a few times a day • Add newly caught fish to your collection book • Watch your favorites swim in My Fish Bowl anytime • Earn festival points to unlock stalls and brighten your festival Perfect for players who love cozy collection games, nostalgic summer festivals, and relaxing little moments of joy.
Pasterium C
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Spend quiet days with your fish in a little aquarium. Pasterium C is a 3D aquarium set in a softly muted pastel room, where you enjoy everyday life with your fish. You start with three little fish in a fishbowl. Give them names, feed them, and watch them slowly grow and bond with you. - Every fish has its own personality and looks Even fish of the same kind each have something special. Keep an eye on growth, bond, and health on each fish’s card. Fish that feel weak can get care, or rest at boarding. - A life that grows a little every day New friends and ornaments arrive, and sometimes eggs are laid. On day 7 the living room tank opens, and on day 14 you get an auto feeder you can use in any tank. - Make the tank your own Choose plants, ornaments, sand colors, and lighting to decorate. Save up to 5 favorite layouts for each tank. - Learn about creatures and ornaments in your journal Look back on each day in the diary, and read about each one in the creature and ornament guides. - Shifting light and gentle sounds The light in the room changes from morning to night and with the seasons. Watch your fish from underwater, and keep photos or short videos. Choose between the original music and lofi, with different tracks for morning, day, and night. You can choose your tap sounds too. - Start for free, then visit the study The fishbowl and the living room are free. “Study with a Bookshelf” is a one-time in-app purchase. It adds a big tank about 120 cm wide, along with Discus, Arowana, River Stingray, and Axolotl. Available in Japanese, English, Korean, Arabic, Simplified and Traditional Chinese, Spanish, French, German, and Portuguese. No ads and no account sign-up. Everyday play works offline. Buying and restoring the in-app purchase needs a connection. Your fish, diary, and other records are saved in the app. Deleting the app also deletes these records, but photos and videos you saved to the Photos app remain.
Screenshots
Verdict
The clearest difference is ads: Pasterium C at none against Kingyo Poi's shown. On price, update cadence, in-app purchases 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
Both are free to download. Kingyo Poi sells 2 in-app purchases, starting at $4.99 per month and Pasterium C sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Kingyo Poi ships an update every 3 days, Pasterium C every 5 days. The most recent releases landed on October 17, 2026 and October 26, 2026 respectively.
| Parameter | Kingyo Poi | Pasterium C |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 days — better | Every 5 days |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 16.0 |
| Further details — not scored | ||
| Size | 68 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | ERIKO KONNO | KENICHI TAKAOKA |
In-app purchases
Kingyo Poi
- Festival Pass Monthly$4.991 Month
- 常連さん(広告なし)$19.99
Pasterium C
- Study with a Bookshelf$2.99









