Comparison

SYTTPMS vs TPMSII

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

Head to head
About

SYTTPMS

Features
Read full description

智炫(TPMS)TX500/TN500胎压监测报警器,适用于iphone的应用。驾驶者坐在车内配合手机APP就能轻松监控4个轮胎的胎压和胎温。当轮胎出现气压过低或过高、温度过高、传感器电池电量过低等异常情况时,手机会立即发出警示声和震动来提醒驾驶者,使驾驶者及时减速停车检查轮胎,确保安全驾驶。 产品的特点: 1、插接汽车OBD口,即插即用,蓝牙无线连接。 2、当轮胎出现漏气、压力过低或者过高、轮胎温度过高等异常情况时,接收器即刻报警,同时软件界面也进入报警状态。 3、APP支持中文、英文语言设置;四种气压单位(Bar、Psi、Kpa、kgf/cm2) 以及两种温度单位(℃,℉)的设置。 4、APP可自由调换轮胎位置和手动学习传感器,方便用户调整。 DIY TPMS for iphone(TX500) & TPMS for iphone(TN500) from ShenYongtong,are an Tire Pressure Monitoring System(TPMS) to work with IOS APP in a vehicle for realtime monitoring individual tire pressure and temperature once Bluetooth from iphone/ipad connected as monitor to ensure on-road safety. Features 1、Power Supply through the vehicle diagnostic system(OBD),Wireless transmission. 2、Real-time monitoring and display,Audio and visual warning. 3、Converitable language,pressure unit(Bar、Psi 、Kpa、Kgf/cm2) and temperature unit(℃,℉). 4、Free exchange tire position sensor and manual learning.

About

TPMSII

Monitor your car's tire pressure and temperature in real-time using your smartphone. Receive timely alerts for abnormal conditions to ensure safer driving. Requires Bluetooth 4.0 and a compatible sensor.

Highlights
  • Real-time tire pressure monitoring
  • Real-time tire temperature monitoring
  • Bluetooth sensor integration
  • Abnormal data alerts
  • Background monitoring
Features
Read full description

"TMPSII" is a car tire pressure detection system application software designed for smartphones. It is suitable for smartphones with Bluetooth 4.0 version. It cooperates with the Bluetooth sensor installed on the car to receive the pressure, temperature, and air leakage of the four tires. The tire pressure and temperature data are monitored in real time when the car is driving. When the data is abnormal, the "smart tire pressure" can be alerted in time to ensure driving safety. 【Precautions】 1. Please make sure that Bluetooth is turned on normally so that "Smart Tire Pressure" can be used normally. 2. The background voice will continue to monitor sudden tire conditions in the background. When switching to the background broadcast, it will consume more power than other operations.

Screenshots

SYTTPMS4 screens
TPMSII1 screens

Verdict

The call

The clearest difference is iOS requirement: TPMSII at 9.0 against SYTTPMS's 13.0. On price, update cadence, ads and in-app purchases 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

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 13, 2026 and June 11, 2026 respectively.

Scorecard1 real difference · 9 level
SYTTPMS versus TPMSII: the parameters behind the verdict, then further details
ParameterSYTTPMSTPMSII
PriceFreeFree
Rating3.7 (6 ratings) — better
Positive reviews35.3% of reviews
Number of ratings6 — better
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree
DevicesiPhone, iPodiPhone, iPod
Requires iOS13.09.0 — better
Further details — not scored
Size1 MB124 MB
Age rating4+4+
DeveloperShenzhen Shenyongtong Industry Co., Ltd.Shenzhen Chaoyue Technology Development Co.,Ltd

In-app purchases

None

SYTTPMS

No in-app purchases

None

TPMSII

No in-app purchases

Questions

Is SYTTPMS free?
SYTTPMS is free to download, with no in-app purchases.
Is TPMSII free?
TPMSII is free to download, with no in-app purchases.
Do SYTTPMS or TPMSII have ads?
Neither SYTTPMS nor TPMSII shows ads.
Which is updated more often, SYTTPMS or TPMSII?
SYTTPMS ships an update every 2 months, and TPMSII every 2 months. Most recently, SYTTPMS was updated on September 13, 2026 and TPMSII on June 11, 2026.

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