# Deltares Aquality vs SJHT

Deltares Aquality and SJHT are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Deltares Aquality ships an update every 2 months, SJHT monthly. The most recent releases landed on October 9, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Deltares Aquality | SJHT |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Size | 85 MB | 50 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Stichting Deltares](https://appshunter.io/developer/576389487) | [c-o-d-e-s B.V.](https://appshunter.io/developer/1703545347) |

## What reviewers say

### Deltares Aquality

[App page](https://appshunter.io/ios/app/deltares-aquality/id1246781089)

**In-app purchases:** none


### SJHT

[App page](https://appshunter.io/ios/app/sjht/id6464064987)

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

**In-app purchases:** none


## Frequently asked questions

### Is Deltares Aquality free?

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

### Is SJHT free?

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

### Do Deltares Aquality or SJHT have ads?

Neither Deltares Aquality nor SJHT shows ads.

### Which is updated more often, Deltares Aquality or SJHT?

Deltares Aquality ships an update every 2 months, and SJHT monthly. Most recently, Deltares Aquality was updated on October 9, 2026 and SJHT on September 30, 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.*