Comparison

TCZN vs AOD Smart

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

Head to head

★ 4.02 ratingsView app →

About

TCZN

Features

Read full description

车辆obd数据检测.故障码查看, 查看车辆实时定位,和历史轨迹,电子围栏报警等功能

About

AOD Smart

This app allows iPhone users to control their car via Bluetooth 4.0. Functions include arming, disarming, and locating the vehicle. Requires iPhone 6 or newer and a compatible digital key system installed in the car.

Highlights

Remote car arming
Remote car disarming
Vehicle location finder
Bluetooth 4.0 connectivity
iPhone integration

Features

Read full description

使用AOD Smart 系统必须iphone6及以上，手机控车通过蓝牙4.0与本公司安装的数字钥匙系统与汽车通讯，实现手机控制汽车：设防、撤防、寻车等功能.

Screenshots

TCZN2 screens

AOD Smart3 screens

Verdict

The call

TCZN and AOD Smart are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

TCZN ships an update every 4 months, AOD Smart every 3 months. The most recent releases landed on February 21, 2026 and September 10, 2026 respectively.

ScorecardNo meaningful differences

TCZN versus AOD Smart: the parameters behind the verdict, then further details
Parameter	TCZN	AOD Smart
Price	Free	Free
Rating	—	4.0 (2 ratings) — better
Positive reviews	—	100.0% of reviews
Number of ratings	—	2 — better
Update frequency	Every 4 months	Every 3 months — better
Ads	No	No
In-app purchases	No	No
Monetization	—	Free
Devices	iPhone, iPod	iPhone, iPad, iPod — better
Requires iOS	12.0	11.0 — better
Further details — not scored
Size	54 MB	73 MB
Age rating	4+	4+
Developer	Shenzhen Zhongxinyou M2M Technology Co., Ltd.	Zhongshan Auto Electronics Technology Co.Ltd.

In-app purchases

None

TCZN

No in-app purchases

None

AOD Smart

No in-app purchases

Questions

Is TCZN free?

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

Is AOD Smart free?

AOD Smart is free to download, with no in-app purchases.

Do TCZN or AOD Smart have ads?

Neither TCZN nor AOD Smart shows ads.

Which is updated more often, TCZN or AOD Smart?

TCZN ships an update every 4 months, and AOD Smart every 3 months. Most recently, TCZN was updated on February 21, 2026 and AOD Smart on September 10, 2026.