Comparison

SmartPLL vs Extender

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

Head to head
About

SmartPLL

Features
Read full description

The Z-COMM SSG series of Smart Phase Locked Loop (PLL) modules provide high performance in a compact package suitable for any number of applications. Fully programmable through a unique Bluetooth interface, or USB cable, the user may adjust functions such as frequency, sweep mode, step time, step size, and power output, among others. LED indicators provide a visual cue of the status of the various functions. Its rugged enclosure lends itself to in-field use as well as bench top testing. The highly reliable output signal, excellent phase noise, and flexibility of an internal reference or input for an external reference, provides RF engineers with an adaptable RF tool.

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 β€” perfect for multitasking, organizing windows, and boosting productivity. Smooth wireless connection Works over local Wi-Fi network 100% privacy β€” 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

SmartPLL3 screens
Extender3 screens

Verdict

The call

The clearest difference is in-app purchases: SmartPLL at none against Extender's 2. Extender's advantage is update cadence (every 2 days vs every 19 months). On price, ads, device support and iOS requirement there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

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

UpkeepUpdate frequency

SmartPLL ships an update every 19 months, Extender every 2 days. The most recent releases landed on September 18, 2026 and September 9, 2026 respectively.

Scorecard2 real differences Β· 4 level
SmartPLL versus Extender: the parameters behind the verdict, then further details
ParameterSmartPLLExtender
PriceFreeFree
Update frequencyEvery 19 monthsEvery 2 days β€” better
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.112.0 β€” better
Further details β€” not scored
Size1 MB47 MB
Age rating4+4+
DeveloperZ-Communicationsygal brami

In-app purchases

None

SmartPLL

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 SmartPLL free?
SmartPLL is free to download, with no in-app purchases.
Is Extender free?
Extender is free to download, with in-app purchases available.
Do SmartPLL or Extender have ads?
Neither SmartPLL nor Extender shows ads.
Which is updated more often, SmartPLL or Extender?
SmartPLL ships an update every 19 months, and Extender every 2 days. Most recently, SmartPLL was updated on September 18, 2026 and Extender on September 9, 2026.

Other comparisons