Pasterium C vs Moonsill
Price, ratings, monetisation and update history for both games, side by side โ with what reviewers say about each.
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 fishโs 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. โStudy with a Bookshelfโ 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.
Moonsill
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When it rains where you live, it rains on your windowsill. Moonsill is a small garden on a painted windowsill that follows your real weather. Rain fills your rain barrel, and you pour it on your plants. Sunny days help them bloom. The view outside changes with your season, from monsoon rain to snow, and at night the moon you see in the window is tonight's moon. REAL WEATHER, NOT A GUESS Most weather apps show a forecast, even for "now". Moonsill checks what's actually happening: nearby airport weather reports, and satellite rain where there's no airport close. If it's dry and hot outside, it's dry and hot on your sill. GROW A GARDEN THAT FITS YOUR SKY - 32 plants, each with the weather it loves: hibiscus, jasmine and the waling-waling orchid in the tropics, hydrangea, plum blossom and peony in East Asia, snowdrops, hellebores and forget-me-nots where winters are cold - Plants never die. A missed week just means a thirsty garden - 14 visitors come by in the right weather: a frog in heavy rain, a tuko gecko on humid evenings, a kingfisher at dawn after a night of rain, a white moth on still full-moon nights AN ALMANAC OF YOUR YEAR Every day is pressed into your almanac: rain days and dry days, the flowers that bloomed, the visitors who came. Press your best blooms into a scrapbook page and share it. THE SKY OVER YOUR CITY Moon phases, the next full moon and meteor showers, worked out for where you are. On a full moon, the moonflower opens, if the clouds allow. YOUR GARDEN ON YOUR HOME SCREEN Widgets for your window, the rain jar, the sky, the plant of the day and more. Or save your window as your wallpaper. GARDEN WITH FRIENDS Swap friend codes, send a plant or a note. No chat, no typing, no followers. Your friends never see where you live. GENTLE BY DESIGN No ads. No energy timers. No streaks to lose. When there's a storm warning where you are, the garden goes quiet and calm. FREE TO PLAY, ONE PURCHASE IF YOU LOVE IT Your sill of four spots, your real weather, gifts from friends and everything you grow are free, always. The full garden opens the shelf and hooks, every plant and visitor, all the widgets and the scrapbook. One purchase, no subscription, nothing else to buy. PRIVATE No account and no sign-up. Moonsill uses your city as a 10 km area, never your exact location, and you can just type a city instead. Weather: airport reports from the NOAA Aviation Weather Center, satellite rain from GSMaP (c)JAXA, and Apple Weather.
Screenshots
Verdict
Pasterium C and Moonsill are too close to call on the numbers: across 6 compared parameters โ price, update cadence, ads and in-app purchases among them โ neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Pasterium C sells 1 one-off in-app purchase and Moonsill sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Pasterium C ships an update every 5 days, Moonsill every 4 days. The most recent releases landed on October 26, 2026 and October 31, 2026 respectively.
| Parameter | Pasterium C | Moonsill |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 days | Every 4 days โ better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone | iPhone |
| Requires iOS | 16.0 โ better | 16.4 |
| Further details โ not scored | ||
| Size | 19 MB | 97 MB |
| Age rating | 4+ | 4+ |
| Developer | KENICHI TAKAOKA | Justin Mark Luzano |
In-app purchases
Pasterium C
- Study with a Bookshelf$2.99
Moonsill
- The full garden$3.99









