Comparison

TT02 DFU Tool vs Voli locks

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

Head to head

Apps for control Voli locks.

Free

🌟 Lifestyle

No ratingsView app →

About

TT02 DFU Tool

Read full description

Device firmware update (DFU) tool for TT02.

About

Voli locks

Features

Read full description

Voli is an application for remote management of electronic locks and access control systems. The app allows administrators and property owners to manage access permissions in real time from anywhere using a mobile device. Main Features: Remote user management Adding and removing users Assigning and editing access permissions Door unlocking via Bluetooth and Wi-Fi Access event and activity logs Remote access control management Support for Voli electronic lock systems Suitable For: Properties with access control systems Voli helps automate access management, improve security, and simplify the operation of electronic lock systems.

Screenshots

TT02 DFU Tool4 screens

Voli locks4 screens

Verdict

The call

The clearest difference is update cadence: Voli locks at every 2 months against TT02 DFU Tool's every 33 months. TT02 DFU Tool's advantage is iOS requirement (11.0 vs 15.0). 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

TT02 DFU Tool ships an update every 33 months, Voli locks every 2 months. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

Scorecard2 real differences · 4 level

TT02 DFU Tool versus Voli locks: the parameters behind the verdict, then further details
Parameter	TT02 DFU Tool	Voli locks
Price	Free	Free
Update frequency	Every 33 months	Every 2 months — better
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	11.0 — better	15.0
Further details — not scored
Size	42 MB	6 MB
Age rating	4+	4+
Developer	SYSGRATION	Fireman Center

In-app purchases

None

TT02 DFU Tool

No in-app purchases

None

Voli locks

No in-app purchases

Questions

Is TT02 DFU Tool free?

TT02 DFU Tool is free to download, with no in-app purchases.

Is Voli locks free?

Voli locks is free to download, with no in-app purchases.

Do TT02 DFU Tool or Voli locks have ads?

Neither TT02 DFU Tool nor Voli locks shows ads.

Which is updated more often, TT02 DFU Tool or Voli locks?

TT02 DFU Tool ships an update every 33 months, and Voli locks every 2 months. Most recently, TT02 DFU Tool was updated on October 25, 2026 and Voli locks on October 28, 2026.