# Opus Biological vs Tonico

The clearest difference is update cadence: Tonico at every 5 days against Opus Biological's every 4 weeks. On price, ads, in-app purchases and device support there is nothing between them.

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

Opus Biological ships an update every 4 weeks, Tonico every 5 days. The most recent releases landed on October 10, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Opus Biological | Tonico |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 5 days** |
| Size | 38 MB | 102 MB |
| Requires iOS | 15.1 | **15.0.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Opus Biological Limited](https://appshunter.io/developer/1805940312) | [John Simmons](https://appshunter.io/developer/1718509573) |

## What reviewers say

### Opus Biological

[App page](https://appshunter.io/ios/app/opus-biological/id6744073119)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Tonico

[App page](https://appshunter.io/ios/app/tonico/id6754153617)

**Features:** macOS Compatibility, Apple Wallet, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Opus Biological free?

Opus Biological is free to download, with no in-app purchases.

### Is Tonico free?

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

### Do Opus Biological or Tonico have ads?

Neither Opus Biological nor Tonico shows ads.

### Which is updated more often, Opus Biological or Tonico?

Opus Biological ships an update every 4 weeks, and Tonico every 5 days. Most recently, Opus Biological was updated on October 10, 2026 and Tonico on November 9, 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.*