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.

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 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.

- You can see how to use the app in “How to” menu.
- If you have any question or suggestion contact
- More details :

What’s New

Version 1.1

New features
- Support multiple languages
- Multiple choice mode

Ratings and Reviews

4.8 out of 5
63 Ratings

63 Ratings

s.nazari67 ,


It’s perfect from different aspects
It covers dictation, and takes exam alongside practicing flash cards.

@del khan64 ,

Please have a new update!

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!

saeeeedddddde ,


It’s the bestest in the word


Jiraapa Jongkuetrakul
14.5 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
In-App Purchases
  1. Remove Ads $1.99
  2. Unlimited Cards $0.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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