Comparison

YMOBD vs Chorus Speaker

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

Head to head
About

YMOBD

This tool connects to your car's OBD adapter via Bluetooth to collect real-time engine data, read fault codes, and provide solutions. It also records driving data, analyzes performance, and offers a HUD display for a safer and more enjoyable driving experience.

Highlights
  • Real-time engine data collection
  • Vehicle fault code reading and solutions
  • Driving data recording and analysis
  • Vehicle performance testing (acceleration, braking)
  • HUD display function
  • Day and night modes
Features
Read full description

YMOBD is a practical too. It has the characteristics of simple operation and accurate data, and is suitable for long-term use by car owners and users. Keep your car away from hidden dangers and make driving fun! Connect and communicate with the OBD adapter via Bluetooth: It can collect car engine data in real time, such as engine speed, ignition time, then correction, water temperature, fuel consumption, etc., with two modes of day and night, with HUD display function. It can read vehicle fault codes and provide professional solutions for detected vehicle fault codes. The driving process of the vehicle can be recorded every time. Analyze and summarize data such as mileage, average fuel consumption, driving time, and driving speed. It can test the acceleration, braking, and other performance of the vehicle, and provide analysis reports.

About

Chorus Speaker

Features
Read full description

Chorus 音箱端让 iPhone / iPad 变成同一 Wi‑Fi 下电脑的近同步扬声器。 在电脑上用 Chorus(Mac)选歌或转播系统声音,这台设备跟着同一条时间线出声——适合客厅、卧室、厨房临时当音箱,或电脑继续干活、声音在旁边的手机上播。 你可以 • 点「等待电脑连接」,允许本地网络后等待电脑发现本机 • 自动搜不到时,把本机显示的 IP:端口填进电脑端「手动填写设备地址」 • 连接后近同步播放;播放中可查看电脑端与时钟对齐状态 • 切换语言、浅色 / 深色外观;背景光斑可跟随音乐轻轻起伏 • 支持实时活动(需较新系统),锁屏也能看到同步状态 怎么开始 打开本 App,点「等待电脑连接」,并允许本地网络 在同一 Wi‑Fi 的 Mac 上打开 Chorus,连接出现的本机(或手动填 IP) 在电脑端选好音频,点一起播放 请先了解这些限制 • 必须与电脑在同一局域网,请关掉 VPN • 公司、学校或访客 Wi‑Fi 常隔离设备,发现与手动连接都可能失败;请改用个人热点或家里网络 • 这不是口型级视频同步,也不保证严格的左右立体声分轨 • 音频只在局域网内传输,不需要账号,也不会上传到云端 Chorus 只在本地网络工作。隐私与权限说明见应用内帮助及隐私政策。

Screenshots

YMOBD4 screens
Chorus Speaker3 screens

Verdict

The call

The clearest difference is in-app purchases: Chorus Speaker at none against YMOBD's 4. Chorus Speaker also leads on update cadence (every 5 days vs every 5 weeks). On price, ads, device support and iOS requirement 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. YMOBD sells 4 one-off in-app purchases. Chorus Speaker asks for nothing beyond the download.

UpkeepUpdate frequency

YMOBD ships an update every 5 weeks, Chorus Speaker every 5 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
YMOBD versus Chorus Speaker: the parameters behind the verdict, then further details
ParameterYMOBDChorus Speaker
PriceFreeFree
Rating2.9 (87 ratings) — better—
Positive reviews35.6% of reviews—
Number of ratings87 — better—
Update frequencyEvery 5 weeksEvery 5 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size49 MB5 MB
Age rating4+4+
Developershenzhen yuming源 蔡

Bugs and requests

YMOBD

Reported bugs

15 issues
  • App crashes on iPhone 17 Pro
  • Purchased add-on requires payment again
  • Contact section not working
  • App crashes every time on iPhone 17 Pro
  • Does not connect at all
Show 10 more
  • OBD2 reader not read by software
  • No transmission temperature reading
  • Bluetooth keeps disconnecting
  • App says OBD is connected but doesn't show info
  • Updated firmware, now won't connect
  • App stopped working after update
  • Rarely connects, disconnects when trying to get info
  • Email not arriving for account creation
  • Captcha not working/sending code
  • Does not work on iOS 18

Requested features

10 requests
  • Dark Mode support
  • Landscape mode support
  • Store data for comparison over time
  • Summary of vehicle diagnostics without connection
  • Run in background feature
Show 5 more
  • Weekly report of diagnostics
  • Allow viewing diagnostic data in offline mode
  • Remove need for model, make, year input for quick scans
  • More frequent updates and optimizations
  • Add landscape function in dashboard

Chorus Speaker

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

YMOBD

One-time4
  • 车辆年检模拟$0.99
  • YMOBD-business expansion$1.99
  • YMOBD-Battery monitoring$2.99
Show 1 more
  • Super Car Sound$5.99
None

Chorus Speaker

No in-app purchases

Questions

Is YMOBD free?
YMOBD is free to download, with in-app purchases available.
Is Chorus Speaker free?
Chorus Speaker is free to download, with no in-app purchases.
Do YMOBD or Chorus Speaker have ads?
Neither YMOBD nor Chorus Speaker shows ads.
Which is updated more often, YMOBD or Chorus Speaker?
YMOBD ships an update every 5 weeks, and Chorus Speaker every 5 days. Most recently, YMOBD was updated on November 3, 2026 and Chorus Speaker on October 31, 2026.

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