Life Battery: Time Left Clock

Ren Usuda Lifestyle iPhoneiPadiPod touch

Life Battery: Time Left Clock is a free Lifestyle app for iPhone and iPad by Ren Usuda. Rated 4.0/5 from 4 ratings. Requires iOS 18.0.

Rating: 4.0; 4 ratings
Price: Free; on the App Store
Size: 43 MB; Age 4+
Updated: Oct 21; 2026 · v3.18.0

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Screenshots

About Life Battery: Time Left Clock

See what percentage of your life remains, shown as a battery. Check it at a glance with the Home Screen widget. Just set your birth date and ideal lifespan to see the days you have left. Life Battery reminds you that life is finite, and that today matters. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

What’s new

Version 3.18.0 · Updated October 21, 2026

・Replaced the ideal lifespan slider with − and + buttons for one-year adjustments. ・Added hold-to-repeat on the − and + buttons so the ideal lifespan changes faster. ・Added preset ages so you can pick a common ideal lifespan in one tap. ・Fixed the premium screen not closing when dragged down.

App privacy

The developer, Ren Usuda, reported these privacy practices to Apple.

Data Linked to You

The following data, which may be collected and linked to your identity, may be used for the following purposes:

Identifiers: Device ID
Usage Data: Product Interaction

Used for: Third-Party Advertising, Analytics, App Functionality

Data Not Linked to You

The following data, which may be collected but is not linked to your identity, may be used for the following purposes:

Diagnostics: Other Diagnostic Data, Crash Data

Used for: Analytics, App Functionality

App details

Life Battery: Time Left Clock is a free Lifestyle app for iPhone, iPad and iPod touch, developed by Ren Usuda. It is rated 4.0 out of 5 from 4 ratings on the App Store, requires iOS 18.0 or later, is 43 MB to download and is available in 2 languages. It was first released on May 31, 2023 and last updated on October 21, 2026.

Category: Lifestyle
Rating: 4.0 / 5 (4 ratings)
Price: Free
Version: 3.18.0
Size: 43 MB
Requires: iOS 18.0 or later
Compatibility: iPhone, iPad, iPod touch
Languages: English, Japanese
Age rating: 4+
Released: May 31, 2023
Last updated: October 21, 2026
Developer: Ren Usuda

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Listing score

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Grade B

Number of ratings (4): More ratings make the average more convincing.
iPhone screenshots (3 / 10): You can add up to 10.
Average rating (4.0): Fair. Getting above 4.3 helps both conversion and ranking.

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Alternatives to Life Battery: Time Left Clock

Looking for apps like Life Battery: Time Left Clock? Here are 6 similar apps on the App Store. The highest rated is eeClock (5.0/5), and all 6 are free to download.

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