# Probably Not vs Agenda SSIFF

The clearest difference is update cadence: Agenda SSIFF at weekly against Probably Not's every 34 months. 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.

Probably Not ships an update every 34 months, Agenda SSIFF weekly. Both last shipped on October 25, 2026.

## The numbers

| Metric | Probably Not | Agenda SSIFF |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 34 months | **Weekly** |
| Size | 98 MB | 7 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Miguel Sicart](https://appshunter.io/developer/1098885865) | [Festival Internacional de cine de Donostia-San Sebastián](https://appshunter.io/developer/908642201) |

## What reviewers say

### Probably Not

[App page](https://appshunter.io/ios/app/probably-not/id1491823325)

**Features:** macOS Compatibility

**In-app purchases:** none


### Agenda SSIFF

[App page](https://appshunter.io/ios/app/agenda-ssiff/id1584323929)

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

**In-app purchases:** none


## Frequently asked questions

### Is Probably Not free?

Probably Not is free to download, with no in-app purchases.

### Is Agenda SSIFF free?

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

### Do Probably Not or Agenda SSIFF have ads?

Neither Probably Not nor Agenda SSIFF shows ads.

### Which is updated more often, Probably Not or Agenda SSIFF?

Probably Not ships an update every 34 months, and Agenda SSIFF weekly. Most recently, Probably Not was updated on October 25, 2026 and Agenda SSIFF 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.*