# OTDR Data Transporter vs EXFO Sync

The clearest difference is update cadence: EXFO Sync at every 4 months against OTDR Data Transporter's every 15 months. EXFO Sync also leads on iOS requirement (11.0 vs 15.5). 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.

OTDR Data Transporter ships an update every 15 months, EXFO Sync every 4 months. The most recent releases landed on October 1, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | OTDR Data Transporter | EXFO Sync |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 4 months** |
| Size | 20 MB | 41 MB |
| Requires iOS | 15.5 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yokogawa Test & Measurement Corporation](https://appshunter.io/developer/997661022) | [EXFO Inc.](https://appshunter.io/developer/462252930) |

## What reviewers say

### OTDR Data Transporter

[App page](https://appshunter.io/ios/app/otdr-data-transporter/id997661023)

**In-app purchases:** none


### EXFO Sync

[App page](https://appshunter.io/ios/app/exfo-sync/id1463609603)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OTDR Data Transporter free?

OTDR Data Transporter is free to download, with no in-app purchases.

### Is EXFO Sync free?

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

### Do OTDR Data Transporter or EXFO Sync have ads?

Neither OTDR Data Transporter nor EXFO Sync shows ads.

### Which is updated more often, OTDR Data Transporter or EXFO Sync?

OTDR Data Transporter ships an update every 15 months, and EXFO Sync every 4 months. Most recently, OTDR Data Transporter was updated on October 1, 2026 and EXFO Sync on October 11, 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.*