# oqdo | smart buildings vs IngSoft InterWatt (eIAM)

The clearest difference is update cadence: IngSoft InterWatt (eIAM) at fortnightly against oqdo | smart buildings's every 2 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.

oqdo | smart buildings ships an update every 2 months, IngSoft InterWatt (eIAM) fortnightly. The most recent releases landed on October 9, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | oqdo | smart buildings | IngSoft InterWatt (eIAM) |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Size | 20 MB | 51 MB |
| Requires iOS | 16.6 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [oqdo](https://appshunter.io/developer/1659460553) | [IngSoft GmbH](https://appshunter.io/developer/945284664) |

## What reviewers say

### oqdo | smart buildings

[App page](https://appshunter.io/ios/app/oqdo-smart-buildings/id1659460551)

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

**In-app purchases:** none


### IngSoft InterWatt (eIAM)

[App page](https://appshunter.io/ios/app/ingsoft-interwatt-eiam/id6740481986)

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

**In-app purchases:** none


## Frequently asked questions

### Is oqdo | smart buildings free?

oqdo | smart buildings is free to download, with no in-app purchases.

### Is IngSoft InterWatt (eIAM) free?

IngSoft InterWatt (eIAM) is free to download, with no in-app purchases.

### Do oqdo | smart buildings or IngSoft InterWatt (eIAM) have ads?

Neither oqdo | smart buildings nor IngSoft InterWatt (eIAM) shows ads.

### Which is updated more often, oqdo | smart buildings or IngSoft InterWatt (eIAM)?

oqdo | smart buildings ships an update every 2 months, and IngSoft InterWatt (eIAM) fortnightly. Most recently, oqdo | smart buildings was updated on October 9, 2026 and IngSoft InterWatt (eIAM) 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.*