Comparison

Relay Check vs Extender

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head

Relay Check

Network Relay Check App

Extend Your Mac Display

Free

🔧 Utilities

No ratingsView app →

About

Relay Check

Features

Read full description

This application serves as a troubleshooting tool for users who rely on the Jamf ZTNA over Network Relay.

About

Extender

Features

Read full description

Expand your workspace with your iPhone or iPad! This app wirelessly turns your device into a seamless second display for your Mac — perfect for multitasking, organizing windows, and boosting productivity. Smooth wireless connection Works over local Wi-Fi network 100% privacy — no data collected or stored By using this app, you agree to Apple’s Terms of Use, which can be found at https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Relay Check4 screens

Extender3 screens

Verdict

The call

The clearest difference is in-app purchases: Relay Check at none against Extender's 2. Relay Check also leads on update cadence (every 4 months vs every 8 months). Extender's advantage is iOS requirement (15.0 vs 17.0). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Extender sells 2 in-app purchases, starting at $14.99 per month. Relay Check asks for nothing beyond the download.

UpkeepUpdate frequency

Relay Check ships an update every 4 months, Extender every 8 months. The most recent releases landed on October 14, 2026 and October 12, 2026 respectively.

Scorecard3 real differences · 3 level

Relay Check versus Extender: the parameters behind the verdict, then further details
Parameter	Relay Check	Extender
Price	Free	Free
Update frequency	Every 4 months — better	Every 8 months
Ads	No	No
In-app purchases	No — better	Yes
Devices	iPhone, iPad, Mac	iPhone, iPad, iPod
Requires iOS	17.0	15.0 — better
Further details — not scored
Size	8 MB	42 MB
Age rating	4+	4+
Developer	JAMF Software	ygal brami

In-app purchases

None

Relay Check

No in-app purchases

2 purchases

Extender

Subscriptions2

Remove all ads for a month$14.991 Month
remove all ads for a year$119.991 Year

Questions

Is Relay Check free?

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

Is Extender free?

Extender is free to download, with in-app purchases available.

Do Relay Check or Extender have ads?

Neither Relay Check nor Extender shows ads.

Which is updated more often, Relay Check or Extender?

Relay Check ships an update every 4 months, and Extender every 8 months. Most recently, Relay Check was updated on October 14, 2026 and Extender on October 12, 2026.