Minamo Idle vs Aetherium Hearts
Price, ratings, monetisation and update history for both games, side by side โ with what reviewers say about each.
Minamo Idle
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A quiet pond to watch, a handful of fish to raise, and nowhere you need to be. Minamo is a gentle idle game about tending a koi pond at your own pace. โ RAISE Grow seven kinds of fish, from tiny fry to the pond's great koi. Feed them for a temporary income boost, or simply let time pass โ the pond keeps quietly ticking along even when you're away. โ WATCH Morning, night, rain โ the pond's mood shifts with the hours. Some fish only appear in the rain, others only after dark. Rare visitors drift in now and then, filling out your codex one encounter at a time. Play with sound or without. Just find a moment, and sit by the water.
Aetherium Hearts
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Raise adventurers in Selwyn, town of the Ash Marches, and send them down into the labyrinths. The expedition runs by itself โ they walk, they fight, they gather, and sometimes they fall. Those who come back bring the whole of it with them, written up by an AI as a single tale. No two are ever the same. โ Three labyrinths The Ashen Corridor, the Frostcrystal Archive, the Ember Crucible. Each runs to a different depth and a different danger, and at the bottom of each an Aetherium Heart lies sleeping. โ It runs on its own Once they are down there, they walk and fight on their own feet. The descent continues while the app is closed. โ Tales The record of a returning expedition is woven into prose by an AI. Send it straight to X, Threads, Bluesky or Discord. โ The town and your company An armoury, a general store, a forge, the guild, a temple, a shrine โ Selwyn holds nine places to go. You can also go looking for an adventurer who has gone missing. โ Standings Set the Aetherium Hearts you have offered at the Shrine of Astel against every adventurer in every town. Japanese and English, switching with your device. Free to play, with no in-app purchases.
Screenshots
Verdict
The clearest difference is update cadence: Minamo Idle at daily against Aetherium Hearts's fortnightly. On price, ads, in-app purchases and device support there is nothing between them.
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. Neither carries in-app purchases, so what you see is what you pay.
Minamo Idle ships an update daily, Aetherium Hearts fortnightly. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.
| Parameter | Minamo Idle | Aetherium Hearts |
|---|---|---|
| Price | Free | Free |
| Update frequency | Daily โ better | Fortnightly |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Devices | iPhone | iPhone |
| Requires iOS | 16.0 โ better | 16.4 |
| Further details โ not scored | ||
| Size | 18 MB | 55 MB |
| Age rating | 4+ | 12+ |
| Developer | 7tomatoes | Hitoshi Igarashi |
In-app purchases
Minamo Idle
No in-app purchases
Aetherium Hearts
No in-app purchases
Questions
Is Minamo Idle free?
Is Aetherium Hearts free?
Do Minamo Idle or Aetherium Hearts have ads?
Which is updated more often, Minamo Idle or Aetherium Hearts?
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