# EXFO OPM vs Thetis Tools

The clearest difference is iOS requirement: EXFO OPM at 10.0 against Thetis Tools's 14.0. 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.

Both ship on a similar rhythm, roughly every 7 months. The most recent releases landed on October 20, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | EXFO OPM | Thetis Tools |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (7 ratings)](https://appshunter.io/ios/app/exfo-opm/id1342361869/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | Every 7 months |
| Monetization | Free | — |
| Size | 62 MB | 50 MB |
| Requires iOS | **10.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [EXFO Inc.](https://appshunter.io/developer/462252930) | [Thetis srl](https://appshunter.io/developer/397584184) |

## What reviewers say

### EXFO OPM

[App page](https://appshunter.io/ios/app/exfo-opm/id1342361869)

This application connects to specific EXFO optical power meters and checkers via Bluetooth to display live measurements. It allows users to manage test configurations, store and edit measurement data, add GPS coordinates, and generate shareable PDF reports.

**Highlights:** Bluetooth connectivity to EXFO devices, Live measurement display, Measurement storage and management, Test configuration management, PDF test report generation, GPS coordinate tagging, JSON export for MPC-100

**Features:** macOS Compatibility

**In-app purchases:** none


### Thetis Tools

[App page](https://appshunter.io/ios/app/thetis-tools/id1460268980)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is EXFO OPM free?

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

### Is Thetis Tools free?

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

### Do EXFO OPM or Thetis Tools have ads?

Neither EXFO OPM nor Thetis Tools shows ads.

### Which is updated more often, EXFO OPM or Thetis Tools?

EXFO OPM ships an update every 7 months, and Thetis Tools every 7 months. Most recently, EXFO OPM was updated on October 20, 2026 and Thetis Tools on October 5, 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.*