Comparison

Minamo Idle vs Aetherium Hearts

Price, ratings, monetisation and update history for both games, side by side โ€” with what reviewers say about each.

Head to head
About

Minamo Idle

Features
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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.

About

Aetherium Hearts

Features
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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

Minamo Idle4 screens
Aetherium Hearts4 screens

Verdict

The call

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Minamo Idle ships an update daily, Aetherium Hearts fortnightly. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

Scorecard1 real difference ยท 5 level
Minamo Idle versus Aetherium Hearts: the parameters behind the verdict, then further details
ParameterMinamo IdleAetherium Hearts
PriceFreeFree
Update frequencyDaily โ€” betterFortnightly
AdsYesYes
In-app purchasesNoNo
DevicesiPhoneiPhone
Requires iOS16.0 โ€” better16.4
Further details โ€” not scored
Size18 MB55 MB
Age rating4+12+
Developer7tomatoesHitoshi Igarashi

In-app purchases

None

Minamo Idle

No in-app purchases

None

Aetherium Hearts

No in-app purchases

Questions

Is Minamo Idle free?
Minamo Idle is free to download, with no in-app purchases.
Is Aetherium Hearts free?
Aetherium Hearts is free to download, with no in-app purchases.
Do Minamo Idle or Aetherium Hearts have ads?
Both Minamo Idle and Aetherium Hearts show ads.
Which is updated more often, Minamo Idle or Aetherium Hearts?
Minamo Idle ships an update daily, and Aetherium Hearts fortnightly. Most recently, Minamo Idle was updated on October 24, 2026 and Aetherium Hearts on October 29, 2026.

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