# D vs QUESTRA Panels

The clearest difference is device support: QUESTRA Panels at 3 against D's 1. QUESTRA Panels also leads on iOS requirement (12.0 vs 15.6). On price, update cadence, ads and in-app purchases there is nothing between them.

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

D ships an update every 6 weeks, QUESTRA Panels every 5 weeks. The most recent releases landed on September 8, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | D | QUESTRA Panels |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 5 weeks** |
| Size | 15 MB | 67 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [NST Audio](https://appshunter.io/developer/1193248051) | [ADAM HALL GMBH](https://appshunter.io/developer/1221838298) |

## What reviewers say

### D

[App page](https://appshunter.io/ios/app/d-net/id1193248052)

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

**In-app purchases:** none


### QUESTRA Panels

[App page](https://appshunter.io/ios/app/questra-panels/id6443703199)

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

**In-app purchases:** none


## Frequently asked questions

### Is D free?

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

### Is QUESTRA Panels free?

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

### Do D or QUESTRA Panels have ads?

Neither D nor QUESTRA Panels shows ads.

### Which is updated more often, D or QUESTRA Panels?

D ships an update every 6 weeks, and QUESTRA Panels every 5 weeks. Most recently, D was updated on September 8, 2026 and QUESTRA Panels on September 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.*