# LORENTZ S vs H2D DAB

The clearest difference is rating: H2D DAB at 2.1 against LORENTZ S's 1.0. H2D DAB also leads on review sentiment (33% vs 0%) and update cadence (monthly vs every 3 months). LORENTZ S's advantage is in-app purchases (none vs 11). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. H2D DAB sells 11 one-off in-app purchases. LORENTZ S asks for nothing beyond the download.

H2D DAB holds the better App Store score, 2.1 against 1.0. Both are backed by a comparable volume of ratings — 2 and 8 respectively. Written reviews point the same way: 0% of LORENTZ S's written reviews are positive against 33% of H2D DAB's.

LORENTZ S ships an update every 3 months, H2D DAB monthly. The most recent releases landed on September 9, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | LORENTZ S | H2D DAB |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (2 ratings)](https://appshunter.io/ios/app/lorentz-s-connect/id6443903719/reviews) | **[2.1 (8 ratings)](https://appshunter.io/ios/app/h2d-dab/id6497955585/reviews)** |
| Number of ratings | 2 | **8** |
| Positive reviews | 0.0% of reviews | **33.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Free | Free |
| Size | 9 MB | 66 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Lorentz](https://appshunter.io/developer/1650411005) | [DAB Pumps](https://appshunter.io/developer/1239868669) |

## What reviewers say

### LORENTZ S

[App page](https://appshunter.io/ios/app/lorentz-s-connect/id6443903719)

This app allows users to configure, monitor, and manage their LORENTZ solar water pump systems. It transforms an iPhone or iPad into a tool for easy system setup and real-time performance analysis.

**Highlights:** Configure pump systems, Monitor real-time data, Analyze stored data, Manage pump performance, iOS device compatibility

**In-app purchases:** none


### H2D DAB

[App page](https://appshunter.io/ios/app/h2d-dab/id6497955585)

Monitor your water and energy consumption with detailed overviews and anomaly notifications. Remotely control and interact with compatible devices to develop sustainable usage habits.

**Highlights:** Consumption overview, Anomaly notifications, Remote device control, Sustainable habit tips, Compatibility with esybox products

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium 1 device, 1 Year | $23.00 | one-time |
| Premium 1 device, 1 Year+12Mo | $42.00 | one-time |
| Premium 2 devices,1 Year | $43.00 | one-time |
| Premium 1 device, 3 Years+12Mo | $90.00 | one-time |
| Premium 6 devices,1 Year+12Mo | $186.99 | one-time |
| Premium 8 devices,1 Year+12Mo | $214.99 | one-time |
| Premium 4 devices,3 Years+12Mo | $304.99 | one-time |
| Premium 5 devices,3 Years+12Mo | $359.00 | one-time |
| Premium 6 devices,3 Years+12Mo | $400.00 | one-time |
| Premium 7 devices,3 Years+12Mo | $439.00 | one-time |
| Premium 8 devices,3 Years+12Mo | $464.99 | one-time |


## Frequently asked questions

### Is LORENTZ S free?

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

### Is H2D DAB free?

H2D DAB is free to download, with in-app purchases available.

### Which has better reviews, LORENTZ S or H2D DAB?

H2D DAB is rated higher. LORENTZ S averages 1.0 out of 5 from 2 ratings, while H2D DAB averages 2.1 from 8 ratings.

### Do LORENTZ S or H2D DAB have ads?

Neither LORENTZ S nor H2D DAB shows ads.

### Which is updated more often, LORENTZ S or H2D DAB?

LORENTZ S ships an update every 3 months, and H2D DAB monthly. Most recently, LORENTZ S was updated on September 9, 2026 and H2D DAB on September 24, 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.*