# Time Primes

> Displays the closest prime number to the current time. (iPhone/iPad app by Max Margolis.)

- Source: https://appshunter.io/ios/app/time-primes/id897630326 (this page in markdown: same URL + `.md`)
- Developer: [Max Margolis](https://appshunter.io/developer/1488956402)
- Category: Education, Entertainment
- Price: Free
- Rating: 5.00/5 from 4 App Store ratings · 4 written reviews indexed
- Age rating: 4+
- Requires: iOS 11.0 · 7 MB
- Languages: English
- Released: 2014-07-20
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/time-primes/id897630326/reviews.md

## What is Time Primes?

Have you ever wondered, "What prime is it?"

Consider the current time in 24-hour format, but without the colon, so that it's a number. Then consider the closest prime number. Time Primes displays that on the screen.

Background colors indicate type of prime.

Learn about the different types of prime!

Share your favorites!

## Key features

- Time to prime number conversion
- Color-coded prime type indicators
- Educational content on prime numbers
- Share favorite primes
- 24-hour time format

## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/time-primes/id897630326/reviews.md

### 5/5 — So fun!

*2014-08-17, version 1.0.1*

What a great fun time!

My only suggestion is to add more info about the different types of prime numbers!

### 5/5 — Time Primes review

*2014-08-12, version 1.0.1*

Surprisingly fun!

### 5/5 — Bug report

*2014-07-29, version 1.0.1*

Some primes are not valid times!! Great app otherwise.

### 5/5 — Such fun!

*2014-07-24, version 1.0.1*

What an intriguing app!  Clever and entertaining.  I love the colors and I can't stop checking the prime!

## Frequently asked questions about Time Primes

### What is Time Primes?

Time Primes converts the current time into a number and displays the closest prime number. It uses background colors to indicate the type of prime, offering an educational experience about prime numbers.

### How does Time Primes teach about prime numbers?

The app provides background colors that signify different types of primes, allowing users to learn about their classifications. It aims to make learning about prime numbers engaging and accessible.

### What devices is Time Primes compatible with?

Time Primes is available for iPhone, iPad, and iPod devices. It is designed to run on Apple's mobile operating system.

### What is the age rating for Time Primes?

Time Primes has an age rating of 4+, making it suitable for young learners and anyone interested in mathematics. The content is designed to be accessible and educational for a broad audience.

### How often is Time Primes updated?

The latest version of Time Primes is 3.1, which was released on May 29, 2020. While updates may not be frequent, the app provides a stable educational experience.

### Can I share my favorite primes from Time Primes?

Yes, Time Primes allows you to share your favorite prime numbers. This feature encourages users to engage with the app and share their discoveries with others.

### Is Time Primes free to use?

Time Primes is completely free to download and use. There are no in-app purchases or subscription fees associated with the application.

### What is the user sentiment for Time Primes?

Based on the available data, Time Primes has a rating of 5.0 stars from 4 ratings, indicating a very positive user reception. Users seem to appreciate its unique approach to prime number education.

## Version history (last 1 release)

### 3.1 — 2020-05-29

Expanded sharing capabilities

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*