# Elvaco OTC vs Belimo Assistant 2

The clearest difference is iOS requirement: Elvaco OTC at 15.0 against Belimo Assistant 2's 17.0. 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.

Elvaco OTC ships an update monthly, Belimo Assistant 2 every 5 weeks. The most recent releases landed on September 23, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Elvaco OTC | Belimo Assistant 2 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.4 (10 ratings)](https://appshunter.io/ios/app/belimo-assistant-2/id6475810004/reviews)** |
| Number of ratings | — | **10** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 weeks |
| Monetization | — | Free |
| Size | 14 MB | 122 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Elvaco AB](https://appshunter.io/developer/1590157446) | [BELIMO Automation AG](https://appshunter.io/developer/1149281298) |

## What reviewers say

### Elvaco OTC

[App page](https://appshunter.io/ios/app/elvaco-otc/id1590157384)

**In-app purchases:** none


### Belimo Assistant 2

[App page](https://appshunter.io/ios/app/belimo-assistant-2/id6475810004)

This app allows for the setup, operation, and troubleshooting of Belimo devices like actuators and valves using a smartphone or tablet. It offers features for checking parameters, monitoring device status, and generating reports.

**Highlights:** Device parameter modification, Identification data display, MP-Bus, BACnet, Modbus addressing, Guided parameter setup, Configuration copy/paste, Live trending and local override, Device health and operation monitoring, Digital report generation

**In-app purchases:** none


## Frequently asked questions

### Is Elvaco OTC free?

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

### Is Belimo Assistant 2 free?

Belimo Assistant 2 is free to download, with no in-app purchases.

### Do Elvaco OTC or Belimo Assistant 2 have ads?

Neither Elvaco OTC nor Belimo Assistant 2 shows ads.

### Which is updated more often, Elvaco OTC or Belimo Assistant 2?

Elvaco OTC ships an update monthly, and Belimo Assistant 2 every 5 weeks. Most recently, Elvaco OTC was updated on September 23, 2026 and Belimo Assistant 2 on September 16, 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.*