# Questionario Osm vs Delera

The clearest difference is update cadence: Questionario Osm at every 3 weeks against Delera's every 3 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.

Questionario Osm ships an update every 3 weeks, Delera every 3 months. The most recent releases landed on November 7, 2026 and November 12, 2026 respectively.

## The numbers

| Metric | Questionario Osm | Delera |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Size | 13 MB | 314 MB |
| Requires iOS | **16.1** | 16.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [OPEN SOURCE MANAGEMENT S.R.L.](https://appshunter.io/developer/1681776853) | [Delera Solutions Srls](https://appshunter.io/developer/1718499639) |

## What reviewers say

### Questionario Osm

[App page](https://appshunter.io/ios/app/questionario-osm/id6446995816)

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

**In-app purchases:** none


### Delera

[App page](https://appshunter.io/ios/app/delera/id6473148850)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Questionario Osm free?

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

### Is Delera free?

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

### Do Questionario Osm or Delera have ads?

Neither Questionario Osm nor Delera shows ads.

### Which is updated more often, Questionario Osm or Delera?

Questionario Osm ships an update every 3 weeks, and Delera every 3 months. Most recently, Questionario Osm was updated on November 7, 2026 and Delera on November 12, 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.*