Comparison

NSYS Buy Back vs CallMe Set

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

Head to head

About

NSYS Buy Back

Features

Read full description

Find a way to organize buyback process for mobile devices! Fully customizable application will provide you an accurate buyback price. Use different questions and parameters and receive buyback orders directly from the application. Test now and start your own buyback!

About

CallMe Set

Configure and manage smart devices during initial setup and beyond. Easily replace devices, update firmware, and perform functional tests to ensure optimal performance.

Highlights

Initial device configuration
Change configuration parameters
Replace broken devices
Upgrade device firmware
Perform functional tests

Features

Read full description

Through the app you can perform the first device configuration during installation, change later the configuration parameters to adapt to the new needs of the user, easily replace a broken device without having to reconfigure it and upgrade the device when a new firmware version containing bug fixing or new features is released. Furthermore the app allows you to perform a functional test after the configuration to ensure the proper device functioning.

Screenshots

NSYS Buy Back4 screens

CallMe Set4 screens

Verdict

The call

The clearest difference is update cadence: CallMe Set at daily against NSYS Buy Back's every 2 months. NSYS Buy Back's advantage is iOS requirement (12.0 vs 14.0). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

NSYS Buy Back ships an update every 2 months, CallMe Set daily. The most recent releases landed on June 9, 2026 and September 2, 2026 respectively.

Scorecard2 real differences · 6 level

NSYS Buy Back versus CallMe Set: the parameters behind the verdict, then further details
Parameter	NSYS Buy Back	CallMe Set
Price	Free	Free
Positive reviews	—	0.0% of reviews
Update frequency	Every 2 months	Daily — better
Ads	No	No
In-app purchases	No	No
Monetization	—	Free
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	12.0 — better	14.0
Further details — not scored
Size	23 MB	100 MB
Age rating	4+	17+
Developer	Grigoriy Glazman	URMET SpA

In-app purchases

None

NSYS Buy Back

No in-app purchases

None

CallMe Set

No in-app purchases

Questions

Is NSYS Buy Back free?

NSYS Buy Back is free to download, with no in-app purchases.

Is CallMe Set free?

CallMe Set is free to download, with no in-app purchases.

Do NSYS Buy Back or CallMe Set have ads?

Neither NSYS Buy Back nor CallMe Set shows ads.

Which is updated more often, NSYS Buy Back or CallMe Set?

NSYS Buy Back ships an update every 2 months, and CallMe Set daily. Most recently, NSYS Buy Back was updated on June 9, 2026 and CallMe Set on September 2, 2026.