Comparison

三元催化风向标 vs 修车助手HD

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

Head to head

★ 5.01 ratingsView app →

About

三元催化风向标

Features

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三元催化回收报价系统，实时更新三元催化回收价格表，与国际价格金拓网实时同步金属价格，每一个三元催化器回收价格都是实时计算出来动态价格，随时掌握实时价格，无论是回收三元催化，还是卖出三元催化，都能知道利润空间。用户可以收藏三元催化，可以创建自己的三元催化数据库，定制自己的三元催化价格体系，价格自由配置。

About

修车助手HD

This utility app provides helpful resources for car maintenance and repair. It is updated weekly and offers a community forum for members to ask questions and get assistance from customer service if specific information cannot be found.

Highlights

Weekly updates
Member community forum
Customer support for missing data
Car maintenance resources

Features

Read full description

超级好用的修车助手，每周更新，会员交流群在线解答。如果找不到资料请联系客服~~

Screenshots

三元催化风向标4 screens

修车助手HD3 screens

Verdict

The call

The clearest difference is in-app purchases: 修车助手HD at none against 三元催化风向标's 10. 修车助手HD also leads on update cadence (every 3 weeks vs every 2 months). 三元催化风向标's advantage is iOS requirement (13.0 vs 15.5). On price, ads 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. 三元催化风向标 sells 10 one-off in-app purchases. 修车助手HD asks for nothing beyond the download.

UpkeepUpdate frequency

三元催化风向标 ships an update every 2 months, 修车助手HD every 3 weeks. The most recent releases landed on September 8, 2026 and September 17, 2026 respectively.

Scorecard3 real differences · 7 level

三元催化风向标 versus 修车助手HD: the parameters behind the verdict, then further details
Parameter	三元催化风向标	修车助手HD
Price	Free	Free
Rating	—	5.0 (1 ratings) — better
Positive reviews	—	100.0% of reviews
Number of ratings	—	1 — better
Update frequency	Every 2 months	Every 3 weeks — better
Ads	Yes	Yes
In-app purchases	Yes	No — better
Monetization	—	Ad-supported
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	13.0 — better	15.5
Further details — not scored
Size	35 MB	108 MB
Age rating	4+	17+
Developer	Shenzhen Youyu Technology Co., Ltd.	Tongling Diyi Information Technology Development Co., Ltd

In-app purchases

10 purchases

三元催化风向标

One-time10

Plus体验卡1天$3.99
初级 66次(3个月)$19.99
初级 300次(1年)$59.99

Show 7 more

团队版(1个月)$69.99
专业版Plus（2个月）$99.99
团队版(2个月)$129.99
专业版Plus（半年）$249.99
团队版(半年)$349.99
专业版Plus（1年）$499.99
团队版（一年）$599.99

None

修车助手HD

No in-app purchases

Questions

Is 三元催化风向标 free?

三元催化风向标 is free to download, with in-app purchases available.

Is 修车助手HD free?

修车助手HD is free to download, with no in-app purchases.

Do 三元催化风向标 or 修车助手HD have ads?

Both 三元催化风向标 and 修车助手HD show ads.

Which is updated more often, 三元催化风向标 or 修车助手HD?

三元催化风向标 ships an update every 2 months, and 修车助手HD every 3 weeks. Most recently, 三元催化风向标 was updated on September 8, 2026 and 修车助手HD on September 17, 2026.