# Belimo RetroFIT+ vs SPAETER mobile App

Belimo RetroFIT+ and SPAETER mobile App 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.

Belimo RetroFIT+ ships an update every 7 months, SPAETER mobile App every 4 months. The most recent releases landed on November 2, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Belimo RetroFIT+ | SPAETER mobile App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/belimo-retrofit-plus/id1149281299/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 4 months** |
| Monetization | Free | — |
| Size | 7 MB | 39 MB |
| Requires iOS | 15.5 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BELIMO Automation AG](https://appshunter.io/developer/1149281298) | [Spaeter AG](https://appshunter.io/developer/1299029223) |

## What reviewers say

### Belimo RetroFIT+

[App page](https://appshunter.io/ios/app/belimo-retrofit-plus/id1149281299)

Easily find the perfect HVAC replacement actuator for your old or damaged equipment. This app helps you identify the best fitting Belimo product for air or water applications, including globe and rotary valve actuators. It also integrates the complete sensor range and offers project planning tools.

**Highlights:** HVAC replacement actuator finder, Air and water solution identification, Globe and rotary valve actuator selection, Integrated sensor range, OCR function for character recognition, RetroFIT+ project creation and planning

**Features:** Vision Pro support

**In-app purchases:** none


### SPAETER mobile App

[App page](https://appshunter.io/ios/app/spaeter-mobile-app/id1299029224)

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

**In-app purchases:** none


## Frequently asked questions

### Is Belimo RetroFIT+ free?

Belimo RetroFIT+ is free to download, with no in-app purchases.

### Is SPAETER mobile App free?

SPAETER mobile App is free to download, with no in-app purchases.

### Do Belimo RetroFIT+ or SPAETER mobile App have ads?

Neither Belimo RetroFIT+ nor SPAETER mobile App shows ads.

### Which is updated more often, Belimo RetroFIT+ or SPAETER mobile App?

Belimo RetroFIT+ ships an update every 7 months, and SPAETER mobile App every 4 months. Most recently, Belimo RetroFIT+ was updated on November 2, 2026 and SPAETER mobile App on October 29, 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.*