# XQOhm vs Prometheus Mobile STO

XQOhm and Prometheus Mobile STO 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.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 9, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | XQOhm | Prometheus Mobile STO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/xqohm/id1486121327/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | — |
| Size | 36 MB | 34 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [MVA Diagnostics, Inc.](https://appshunter.io/developer/1533323447) | [PROMETHEUS GROUP, INC.](https://appshunter.io/developer/1554172551) |

## What reviewers say

### XQOhm

[App page](https://appshunter.io/ios/app/xqohm/id1486121327)

Streamline fluid diagnostics with this app. Scan fluid barcodes to order tests and capture serial numbers for faster workflows. Create new assets and manage fluid intake efficiently.

**Highlights:** Fluid diagnostic intake, Create new assets, Scan fluid barcodes, Order tests, Capture serial numbers, Expedite workflow

**Features:** macOS Compatibility

**In-app purchases:** none


### Prometheus Mobile STO

[App page](https://appshunter.io/ios/app/prometheus-mobile-sto/id6452803445)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is XQOhm free?

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

### Is Prometheus Mobile STO free?

Prometheus Mobile STO is free to download, with no in-app purchases.

### Do XQOhm or Prometheus Mobile STO have ads?

Neither XQOhm nor Prometheus Mobile STO shows ads.

### Which is updated more often, XQOhm or Prometheus Mobile STO?

XQOhm ships an update every 2 months, and Prometheus Mobile STO every 2 months. Most recently, XQOhm was updated on October 9, 2026 and Prometheus Mobile STO on October 30, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*