Comparison

SyncKing vs Extender

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

Head to head
About

SyncKing

Create and host interactive second screen experiences for live streams or local multiplayer games. Customize with widgets like images, scoreboards, and status updates for real-time audience engagement. Requires a WiFi or cellular connection for both host and viewer.

Highlights
  • Host custom second screen experiences
  • Real-time widget updates
  • Scoreboard display
  • Status sharing
  • Audience notifications
  • Connect via 4-digit code
Features
Read full description

Host your own second screen experience filled with your own widgets. SyncKing is especially useful for live streams - be more engaging with your viewers to improve your channel interactivity. Not only that but is useful for local play whether you are at a pub, at home playing a quiz with your friends.. The options are limitless on how you can use SyncKing.  Enable widgets to your liking. Show images, put up a scoreboard, share statuses, send your audience notifications and many other features in REAL-TIME. A valid connection to WiFi or Cellular is required to work for both the 'Host' and the 'Viewer'. Just enter the unique code 4-digit code to connect to the correct host.

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

SyncKing2 screens
Extender3 screens

Verdict

The call

The clearest difference is in-app purchases: SyncKing at none against Extender's 2. SyncKing also leads on update cadence (every 2 months vs every 8 months) and iOS requirement (9.0 vs 15.0). 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. SyncKing asks for nothing beyond the download.

UpkeepUpdate frequency

SyncKing ships an update every 2 months, Extender every 8 months. The most recent releases landed on October 18, 2026 and October 12, 2026 respectively.

Scorecard3 real differences · 7 level
SyncKing versus Extender: the parameters behind the verdict, then further details
ParameterSyncKingExtender
PriceFreeFree
Rating3.9 (11 ratings) — better—
Positive reviews75.0% of reviews—
Number of ratings11 — better—
Update frequencyEvery 2 months — betterEvery 8 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS9.0 — better15.0
Further details — not scored
Size57 MB42 MB
Age rating4+4+
DeveloperAshley Richardsygal brami

In-app purchases

None

SyncKing

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 SyncKing free?
SyncKing is free to download, with no in-app purchases.
Is Extender free?
Extender is free to download, with in-app purchases available.
Do SyncKing or Extender have ads?
Neither SyncKing nor Extender shows ads.
Which is updated more often, SyncKing or Extender?
SyncKing ships an update every 2 months, and Extender every 8 months. Most recently, SyncKing was updated on October 18, 2026 and Extender on October 12, 2026.

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