# Omisli.si vs Aquarium Harmony

The clearest difference is in-app purchases: Omisli.si at none against Aquarium Harmony's 3. Omisli.si also leads on ads (none vs shown) and iOS requirement (12.0 vs 18.0). Aquarium Harmony's advantage is update cadence (daily vs fortnightly). On price and device support there is nothing between them.

Both are free to download. Aquarium Harmony sells 3 in-app purchases, starting at $4.99 per month. Omisli.si asks for nothing beyond the download.

Omisli.si ships an update fortnightly, Aquarium Harmony daily. The most recent releases landed on October 2, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Omisli.si | Aquarium Harmony |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Daily** |
| Size | 35 MB | 15 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Age rating | 17+ | 4+ |
| Developer | [Omisli.si](https://appshunter.io/developer/1446252150) | [Georgiy Gorokhov](https://appshunter.io/developer/1806278466) |

## What reviewers say

### Omisli.si

[App page](https://appshunter.io/ios/app/omislisi/id1446252151)

**Features:** macOS Compatibility

**In-app purchases:** none


### Aquarium Harmony

[App page](https://appshunter.io/ios/app/aquarium-harmony/id6790428231)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium — Monthly | $4.99 | per month |
| Premium — Annual | $19.99 | per year |
| Premium — Lifetime | $39.99 | one-time |


## Frequently asked questions

### Is Omisli.si free?

Omisli.si is free to download, with no in-app purchases.

### Is Aquarium Harmony free?

Aquarium Harmony is free to download, with in-app purchases available.

### Do Omisli.si or Aquarium Harmony have ads?

Aquarium Harmony shows ads; Omisli.si does not.

### Which is updated more often, Omisli.si or Aquarium Harmony?

Omisli.si ships an update fortnightly, and Aquarium Harmony daily. Most recently, Omisli.si was updated on October 2, 2026 and Aquarium Harmony on September 29, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*