Comparison

HY Exhaust vs LessScreen | Boost Focus

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

Head to head
About

HY Exhaust

Features
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HY Exhaust是一款通过蓝牙控制车辆的排气设备的软件。 该软件分为手动和自动两种操作:手动操作即需要用户手动点击开启或关闭按钮来控制阀门的开关;自动操作则只要点击自动按钮即可,阀门会根据用户设置的转速和延迟关闭时间作出反应,当发动机转速达到用户设置的转速时即会开启阀门,当发动机转速变为低于用户设置的转速时会根据延迟关闭时间延时关闭阀门,防止汽车转速在改变过程中频繁打开或关闭阀门。

About

LessScreen | Boost Focus

Features
Read full description

Can't stop scrolling? You're not alone. Self-Control Brain helps you cut down on mindless phone scrolling. 【You Might Be Experiencing】 You only want to take a quick look, but end up scrolling endlessly. You're already exhausted, yet keep unlocking your phone. You scroll before bed and end up staying up late again. The problem isn't that you lack self-discipline— it's that phones are just too addictive. 【What Self-Control Brain Can Do for You】 Control Phone Scrolling Set usage limits for addictive apps. Gently remind you to stop at critical moments. App Usage Restrictions Customize different rules for different apps. Separate settings for workdays and weekends. Scroll Less Before Bed Help you pause during times when you're prone to staying up late. 【This Isn't a "Self-Discipline Magic Tool"】 No punishment No shaming No forced phone locking It simply gives you a little push— when you want to stop but can't seem to. 【If You're Also Looking for Something Like This】 You don't want to be controlled by your phone anymore. You don't want to rely on willpower to struggle through each day. You just want to scroll a little less. Then you can give Self-Control Brain a try. Self-Control Brain Privacy Policy: https://pij00bdj9a.feishu.cn/wiki/IrYIwX97AiA33MkLCvZcGwhonAh Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

HY Exhaust1 screens
LessScreen | Boost Focus4 screens

Verdict

The call

The clearest difference is in-app purchases: HY Exhaust at none against LessScreen | Boost Focus's 3. HY Exhaust also leads on iOS requirement (11.0 vs 18.5). LessScreen | Boost Focus's advantage is update cadence (monthly vs every 2 months). 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. LessScreen | Boost Focus sells 3 in-app purchases, starting at $0.99 per month. HY Exhaust asks for nothing beyond the download.

UpkeepUpdate frequency

HY Exhaust ships an update every 2 months, LessScreen | Boost Focus monthly. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

Scorecard3 real differences · 3 level
HY Exhaust versus LessScreen | Boost Focus: the parameters behind the verdict, then further details
ParameterHY ExhaustLessScreen | Boost Focus
PriceFreeFree
Update frequencyEvery 2 monthsMonthly — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPod — betteriPhone
Requires iOS11.0 — better18.5
Further details — not scored
Size29 MB18 MB
Age rating4+12+
Developer可 冯小龙 郭

In-app purchases

None

HY Exhaust

No in-app purchases

3 purchases

LessScreen | Boost Focus

Subscriptions2
  • 月度会员$0.991 Month
  • 年度会员$3.991 Year
One-time1
  • 永久会员$6.99

Questions

Is HY Exhaust free?
HY Exhaust is free to download, with no in-app purchases.
Is LessScreen | Boost Focus free?
LessScreen | Boost Focus is free to download, with in-app purchases available.
Do HY Exhaust or LessScreen | Boost Focus have ads?
Neither HY Exhaust nor LessScreen | Boost Focus shows ads.
Which is updated more often, HY Exhaust or LessScreen | Boost Focus?
HY Exhaust ships an update every 2 months, and LessScreen | Boost Focus monthly. Most recently, HY Exhaust was updated on November 3, 2026 and LessScreen | Boost Focus on November 5, 2026.

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