# 91 FM vs Supernova 88.1 FM

The clearest difference is update cadence: Supernova 88.1 FM at daily against 91 FM's every 2 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.

91 FM ships an update every 2 weeks, Supernova 88.1 FM daily. The most recent releases landed on September 1, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | 91 FM | Supernova 88.1 FM |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Daily** |
| Size | 28 MB | 11 MB |
| Requires iOS | 15.2 | 15.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ASSOCIACAO DOS MORADORES DA REGIAO DO ALEM RIO](https://appshunter.io/developer/1705244757) | [APPRADIO.PRO](https://appshunter.io/developer/1659902115) |

## What reviewers say

### 91 FM

[App page](https://appshunter.io/ios/app/91-fm-curitiba/id6778909285)

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

**In-app purchases:** none


### Supernova 88.1 FM

[App page](https://appshunter.io/ios/app/supernova-881-fm/id6798271997)

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

**In-app purchases:** none


## Frequently asked questions

### Is 91 FM free?

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

### Is Supernova 88.1 FM free?

Supernova 88.1 FM is free to download, with no in-app purchases.

### Do 91 FM or Supernova 88.1 FM have ads?

Neither 91 FM nor Supernova 88.1 FM shows ads.

### Which is updated more often, 91 FM or Supernova 88.1 FM?

91 FM ships an update every 2 weeks, and Supernova 88.1 FM daily. Most recently, 91 FM was updated on September 1, 2026 and Supernova 88.1 FM on September 16, 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.*