Comparison

smile vs CloseMouth

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

Head to head
About

smile

This app is exclusively for users of the Smile-3 system. It provides access to your member page, allowing you to check member entry/exit status and view broadcast notifications.

Highlights
  • Exclusive access for Smile-3 system users
  • Member page access
  • Check member entry/exit status
  • View broadcast notifications
Read full description

Smile-3システムをご利用頂いているお客様専用のアプリです。 マイページを使用するためのアプリです。 会員様の入退室状況や一斉通知を確認することができます。

About

CloseMouth

Features
Read full description

CloseMouth A simple app to help you become aware of your open mouth habit and mouth breathing ■ Do you notice when your mouth is open? Sometimes your mouth stays open without you realizing it. This “open mouth habit” or mouth breathing can be difficult to notice on your own. CloseMouth helps you become aware of these unnoticed habits by providing a gentle alert when your mouth remains open. ■ How it works CloseMouth uses your device’s camera to detect whether your mouth is open or closed. When your mouth stays open for a certain period of time, the app plays a sound. Automatic detection Simple sound notification No complicated setup You can use it naturally in your daily life. ■ Awareness, not enforcement Habits are formed unconsciously. CloseMouth does not force behavior—it simply helps you notice your current state. These small moments of awareness can support changes in daily habits over time. ■ When to use While watching videos or using your phone During study or focused tasks While relaxing Anytime you want to be aware of your habits ■ Who it’s for People concerned about mouth breathing Those who want to be aware of daily habits Anyone looking to improve focus and posture awareness ■ Features Real-time mouth state detection Simple audio alert Easy-to-use design Designed for continuous daily use ■ Notes This app is not intended for medical use All processing is done on-device Results are not guaranteed

Screenshots

smile3 screens
CloseMouth2 screens

Verdict

The call

The clearest difference is update cadence: CloseMouth at every 5 days against smile's every 4 months. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

smile ships an update every 4 months, CloseMouth every 5 days. The most recent releases landed on October 2, 2026 and October 28, 2026 respectively.

Scorecard1 real difference · 7 level
smile versus CloseMouth: the parameters behind the verdict, then further details
ParametersmileCloseMouth
PriceFreeFree
Positive reviews0.0% of reviews—
Update frequencyEvery 4 monthsEvery 5 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.015.0
Further details — not scored
Size7 MB17 MB
Age rating4+4+
DeveloperLeaphic CO.,LtdRyosuke Yoshitomi

In-app purchases

None

smile

No in-app purchases

None

CloseMouth

No in-app purchases

Questions

Is smile free?
smile is free to download, with no in-app purchases.
Is CloseMouth free?
CloseMouth is free to download, with no in-app purchases.
Do smile or CloseMouth have ads?
Neither smile nor CloseMouth shows ads.
Which is updated more often, smile or CloseMouth?
smile ships an update every 4 months, and CloseMouth every 5 days. Most recently, smile was updated on October 2, 2026 and CloseMouth on October 28, 2026.

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