# 5th Box - Flashcards

> Flashcard app using Leitner and SRS for optimized vocabulary learning. (iPhone/iPad app by Jiraapa Jongkuetrakul.)

- Source: https://appshunter.io/ios/app/5th-box-flashcards/id1100623086 (this page in markdown: same URL + `.md`)
- Developer: [Jiraapa Jongkuetrakul](https://appshunter.io/developer/596243093)
- Category: Education, Utilities
- Price: Free with in-app purchases
- Rating: 4.57/5 from 182 App Store ratings · 16 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.0 · 14 MB
- Languages: English
- Released: 2016-06-24
- Data updated: 2026-06-10
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/5th-box-flashcards/id1100623086/reviews.md

## What is 5th Box?

5th Box (Fifth Box) is an flashcard application for reviewing vocabulary based on Leitner System and SRS (Space Repetition System).

It automatically manages revision of your learning, so that you concentrate on words that are difficult to remember, and don't waste time reviewing words that you know very well.

5th Box app will remind words before you would forget it and makes sure that it stays constantly fresh in your mind. So that you will never forget it again.  

Feature:
1. Study Mode.
- Study flashcards mode.
- Study spelling mode.
- Study multiple choice mode.
- Study learning mode.
- SRS+ and Leitner System Algorithm.
- User friendly interface. 
- Remind words before you would forget it.

2. Create and Import ready made cards. 
- Create your own flashcards in the app, support photo, audio and Text-to-Speech.  (Free version 300 cards limit)
- Import ready made flashcards from 5thbox.org and Quizlet.

3. More features
- Support multiple folders and decks.
- Share cards via Email, AirDrop, Message and Wi-Fi.
- Support study offline. 

Who should be use this app.
- Student use for learning vocabulary, SAT, GRE, TOFLE, etc
- Teacher use to create flashcards and share to all students.
- Parent use for kids to learn sight word.
- Using for learning language.

Support: 
- You can see how to use the app in “How to” menu.
- If you have any question or suggestion contact nim@aromdee.com  
- More details : www.5thbox.org

## Key features

- Leitner System & SRS Algorithm
- Study Modes (Flashcard, Spelling, Multiple Choice)
- Create Custom Flashcards (Photo, Audio, TTS)
- Import Flashcards (5thbox.org, Quizlet)
- Offline Study Support
- Card Sharing

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Unlimited Cards | $0.99 | one-time |
| Remove Ads | $1.99 | one-time |


## Recent user reviews (10 of 16)

All indexed reviews: https://appshunter.io/ios/app/5th-box-flashcards/id1100623086/reviews.md

### 1/5 — Problem in IOS17

*2023-09-25, version 1.1*

There is a problem in iOS 17 where the app closes when I try to add a new word.

### 1/5 — All is Lost

*2023-03-11*

Unfortunately, after many years and over 2200 flash cards created, I cannot transfer them to my new phone. 5th Box claims you can WiFi transfer all of your cards but it appears this is a ploy to gain customers. Something to remember when looking for a good flash card app.

### 5/5 — Where have you been?

*2022-07-31*

I’m a college professor, and I coach my students on spaced repetition. This is far and away the best, most helpful app available.

### 5/5 — Helpful application

*2021-10-11*

A very useful application, but now in IOS14 and 15, it would be better if the update the app with a widget feature in which it would be possible to review the content of each part on the home screen.

### 5/5 — Perfect

*2021-07-10*

Hello . Thank you for your good app. I wish other languages would be added to it.

### 5/5 — good

*2020-08-04*

useful app💪🏻

### 1/5 — Okay

*2020-07-17, version 1.1*

I got this app because it met my minimum requirements. I can send and receive decks, move cards to other decks, study from each side of the card and other things. I cannot however, utilize the SRS function which is important to me. There is no daily alarm to study the decks and no word of the day. I have also found that once I memorize a deck to the 5th box, there is no way to reset it and do it again as in other apps. Also, I must turn off the volume every time I go into a new folder or it tries to pronounce my Spanish vocabulary as if they were English words. I’m really hoping some of these functions will work eventually and that they weren’t just used to bait me into buying the app. With everything working and a few fixes it is the best flash card app out there. When using the spelling, of you spell something wrong it freezes the screen and there is no way to move on to the next screen. There is no way to turn off the sound when getting an answer correct. It still alerts with the volume off. No support at all if you need help or have a question.

### 5/5 — Voice

*2020-03-10*

The voice is wrong after one month

### 5/5 — Goooood

*2019-12-18*

This app is very good, you can memorize everything 
👌🏻👌🏻👌🏻

### 4/5 — Please have a new update!

*2019-06-01*

1-Thanks for your good and functional application. Please do a new update to get more features for the users. Thankful

2- When the mobile language is set to the German language, when the phone is locked, if the software's notification shows the reminder and we select it, the software will open automatically and will display the necessary items to remind, but the problem here is the pronunciation of words will be in English, not German!

## Frequently asked questions about 5th Box

### What is 5th Box and how does it work?

5th Box is a flashcard application designed for efficient vocabulary review. It utilizes the Leitner System and Spaced Repetition System (SRS) to intelligently manage your learning schedule. The app prioritizes words you find difficult, ensuring you spend more time on challenging material and less on words you already know well.

### What are the key features of 5th Box?

Key features include multiple study modes (flashcards, spelling, multiple choice), an SRS+ and Leitner System algorithm for optimized review, the ability to create custom flashcards with photo, audio, and text-to-speech support, and the option to import ready-made cards from external sources. It also supports offline study and card sharing.

### How much does 5th Box cost?

The app is free to download and use, but the free version has a limit of 300 cards. In-app purchases are available to remove this limit and unlock additional features, allowing for unlimited card creation and management.

### Who is 5th Box intended for?

This app is ideal for students preparing for exams like SAT, GRE, and TOEFL, teachers who want to create and share flashcards with their students, parents helping children learn sight words, and anyone learning a new language or seeking to improve their vocabulary retention.

### Can I use 5th Box without an internet connection?

Yes, the app supports offline study. You can create, review, and manage your flashcards even when you don't have an internet connection, making it convenient for studying on the go.

## Version history (last 2 releases)

### 1.1 — 2016-09-09

This app has been updated by Apple to display the Apple Watch app icon.

New features
- Support multiple languages
- Multiple choice mode

### 1.0 — 2016-06-24

No release notes.

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## More apps by Jiraapa Jongkuetrakul

- [Math Up](https://appshunter.io/ios/app/math-up/id596243090)
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- [Boost Brain Power](https://appshunter.io/ios/app/boost-brain-power/id947214502)
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All apps by Jiraapa Jongkuetrakul: https://appshunter.io/developer/596243093

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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.*