# Blii vs Gero OS

The clearest difference is iOS requirement: Blii at 15.1 against Gero OS's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Blii sells 2 in-app purchases, starting at $4.99 per month and Gero OS sells 4 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.

Blii ships an update every 9 days, Gero OS weekly. The most recent releases landed on November 5, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Blii | Gero OS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | **Weekly** |
| Size | 80 MB | 13 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Prabuddha Vyas](https://appshunter.io/developer/1827632876) | [Allstyle Sweden AB](https://appshunter.io/developer/1869721418) |

## What reviewers say

### Blii

[App page](https://appshunter.io/ios/app/blii/id6751427550)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Blii+ | $4.99 | per month |
| Blii+ | $39.99 | per year |


### Gero OS

[App page](https://appshunter.io/ios/app/gero-os/id6757932972)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Access Monthly | $8.99 | per month |
| Founder Pro Monthly | $49.90 | per month |
| Full Access Yearly | $59.99 | per year |
| Yearly Founder Pro | $399.00 | per year |


## Frequently asked questions

### Is Blii free?

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

### Is Gero OS free?

Gero OS is free to download, with in-app purchases available.

### Do Blii or Gero OS have ads?

Neither Blii nor Gero OS shows ads.

### Which is updated more often, Blii or Gero OS?

Blii ships an update every 9 days, and Gero OS weekly. Most recently, Blii was updated on November 5, 2026 and Gero OS on October 25, 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.*