# D vs HQS

The clearest difference is update cadence: D at monthly against HQS's every 27 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.

D ships an update monthly, HQS every 27 months. The most recent releases landed on September 29, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | D | HQS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 27 months |
| Size | 34 MB | 167 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SECUREMME SRL](https://appshunter.io/developer/1076281466) | [HQS, Maria Luisa Gugolati s.p.](https://appshunter.io/developer/1786656981) |

## What reviewers say

### D

[App page](https://appshunter.io/ios/app/d-smart-20/id1483095654)

**Features:** macOS Compatibility

**In-app purchases:** none


### HQS

[App page](https://appshunter.io/ios/app/hqs/id1670128989)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is D free?

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

### Is HQS free?

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

### Do D or HQS have ads?

Neither D nor HQS shows ads.

### Which is updated more often, D or HQS?

D ships an update monthly, and HQS every 27 months. Most recently, D was updated on September 29, 2026 and HQS on October 2, 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.*