Comparison

Bullet BookMark vs CloseMouth

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

Head to head
About

Bullet BookMark

Quickly save and organize favorite content from any app, including articles, videos, and places. Access your saved items by category with a simple swipe, ensuring nothing gets lost. Ideal for those who frequently bookmark information for later reference.

Highlights
  • 0.5-second bookmarking
  • Unlimited category creation
  • Tab-type UI for browsing
  • iCloud backup
  • Unread bookmark management
  • New arrivals display
Features
Read full description

Manage and view all your bookmarks quickly and in one place!! Bullet Bookmark is a bookmarking application that allows you to manage your "favorite posts" and "information you like" on all kinds of applications such as news, blogs, websites, X (Twitter), Instagram, YouTube, Google Maps, Tiktok, etc., in one place. This is recommended for those who often bookmark articles they are interested in, things they want, places they want to visit, food they want to eat, movies they want to watch, things they want to do, etc., as if they were notes. You can check and access your bookmarks by category with a swipe, so it is super easy to organize your information! No more missing bookmarks or cluttering up your home screen! <App Features> ・Bookmarking is completed in 0.5 seconds! All categories are displayed in a list when you select the share menu, so you can quickly register bookmarks with "one tap" without troublesome operations. ・Flexible category creation and management You can create an unlimited number of categories with any name you like. You can create and manage categories with any name you like, such as articles you are interested in, gourmet foods you want to try, places you want to go, things you want, hobbies, and so on. ・Tab type UI for easy browsing With the swiping operation, you can easily move between categories with ease. ・iCloud backup Bookmark data can be shared among multiple devices or when you change the device model. ・Unread management Unread bookmarks are displayed as numbers on the app icon and also in the app, so you will not miss them. ・New arrivals display In addition to the category display, recently registered bookmarks can be displayed in a list, You can also quickly check bookmarks that you have "registered for the time being". *Notes Before using this function, you need to register to the Share menu. Please follow the instructions to register.

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

Bullet BookMark4 screens
CloseMouth2 screens

Verdict

The call

The clearest difference is ads: CloseMouth at none against Bullet BookMark's shown. CloseMouth also leads on update cadence (every 5 days vs every 3 months). On price, in-app purchases, 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Bullet BookMark ships an update every 3 months, CloseMouth every 5 days. The most recent releases landed on November 3, 2026 and October 28, 2026 respectively.

Scorecard2 real differences · 8 level
Bullet BookMark versus CloseMouth: the parameters behind the verdict, then further details
ParameterBullet BookMarkCloseMouth
PriceFreeFree
Rating4.0 (1 ratings) — better—
Positive reviews44.4% of reviews—
Number of ratings1 — better—
Update frequencyEvery 3 monthsEvery 5 days — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supported—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS14.2 — better15.0
Further details — not scored
Size28 MB17 MB
Age rating17+4+
DeveloperKENICHI YAMAMOTORyosuke Yoshitomi

In-app purchases

None

Bullet BookMark

No in-app purchases

None

CloseMouth

No in-app purchases

Questions

Is Bullet BookMark free?
Bullet BookMark is free to download, with no in-app purchases.
Is CloseMouth free?
CloseMouth is free to download, with no in-app purchases.
Do Bullet BookMark or CloseMouth have ads?
Bullet BookMark shows ads; CloseMouth does not.
Which is updated more often, Bullet BookMark or CloseMouth?
Bullet BookMark ships an update every 3 months, and CloseMouth every 5 days. Most recently, Bullet BookMark was updated on November 3, 2026 and CloseMouth on October 28, 2026.

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