# Optris calculator vs SoloCUE

The clearest difference is update cadence: Optris calculator at every 2 months against SoloCUE's every 6 months. Optris calculator also leads on iOS requirement (12.0 vs 16.0). 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.

Optris calculator ships an update every 2 months, SoloCUE every 6 months. The most recent releases landed on October 27, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Optris calculator | SoloCUE |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/solocue/id6449558813/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 6 months |
| Monetization | — | Free |
| Size | 31 MB | 73 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Optris GmbH](https://appshunter.io/developer/1619077973) | [Badger Meter, Inc.](https://appshunter.io/developer/1175068022) |

## What reviewers say

### Optris calculator

[App page](https://appshunter.io/ios/app/optris-calculator/id1619077971)

**In-app purchases:** none


### SoloCUE

[App page](https://appshunter.io/ios/app/solocue/id6449558813)

This app enables service technicians to remotely monitor, set up, and diagnose specific ultrasonic flow and thermal energy meters via Bluetooth. It allows for saving and sharing meter configuration settings directly from a mobile device.

**Highlights:** Monitor ultrasonic flow meters, Setup meter configurations, Diagnose meter issues, Bluetooth connectivity, Save and share settings, Supports specific Dynasonics models

**In-app purchases:** none


## Frequently asked questions

### Is Optris calculator free?

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

### Is SoloCUE free?

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

### Do Optris calculator or SoloCUE have ads?

Neither Optris calculator nor SoloCUE shows ads.

### Which is updated more often, Optris calculator or SoloCUE?

Optris calculator ships an update every 2 months, and SoloCUE every 6 months. Most recently, Optris calculator was updated on October 27, 2026 and SoloCUE on November 3, 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.*