Comparison

yACK FAST vs NACVIEW Authenticator

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

Head to head

NACVIEW Authenticator

Free

🔧 Utilities

No ratingsView app →

About

yACK FAST

Features

Read full description

Tool for using BlueSnap M6A wireless module, Scanfob® Brand RFID-NFC reader/writers, Scanfob® Brand BLE barcode scanners -View, and setup module parameters -Chat in STEAM mode with UART connected devices. -Show data like sensor readings, barcode/NFC/UHF scans. -Send scanner commands -Get RSSI readings from nearby BLE devices -Bluetooth Smart terminal function -Easy command history Serialio.com provides BLE app development libraries used in this app

About

NACVIEW Authenticator

Features

Read full description

The NACVIEW Authenticator application aims to generate one-time unique codes for users to log in to the network. It is a very simple and convenient application, thanks to which you can be sure that unwanted users will not get into the network.

Screenshots

yACK FAST4 screens

NACVIEW Authenticator3 screens

Verdict

The call

The clearest difference is update cadence: yACK FAST at every 2 months against NACVIEW Authenticator's every 12 months. 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

yACK FAST ships an update every 2 months, NACVIEW Authenticator every 12 months. The most recent releases landed on November 6, 2026 and November 11, 2026 respectively.

Scorecard1 real difference · 5 level

yACK FAST versus NACVIEW Authenticator: the parameters behind the verdict, then further details
Parameter	yACK FAST	NACVIEW Authenticator
Price	Free	Free
Update frequency	Every 2 months — better	Every 12 months
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	15.6	14.0 — better
Further details — not scored
Size	9 MB	12 MB
Age rating	4+	4+
Developer	Serialio Ltd.	NACVIEW Sp. z o.o.

In-app purchases

None

yACK FAST

No in-app purchases

None

NACVIEW Authenticator

No in-app purchases

Questions

Is yACK FAST free?

yACK FAST is free to download, with no in-app purchases.

Is NACVIEW Authenticator free?

NACVIEW Authenticator is free to download, with no in-app purchases.

Do yACK FAST or NACVIEW Authenticator have ads?

Neither yACK FAST nor NACVIEW Authenticator shows ads.

Which is updated more often, yACK FAST or NACVIEW Authenticator?

yACK FAST ships an update every 2 months, and NACVIEW Authenticator every 12 months. Most recently, yACK FAST was updated on November 6, 2026 and NACVIEW Authenticator on November 11, 2026.