Hiragana/Katakana

★Highly recommended 

Hiragana Memory Hint (Hiragana)
Android
iOS
Hiragana Memory Hint (Katakana) Android iOS Study hiragana the fun way using mnemonic pictures and check your understanding with a variety of quizzes!

★Dr. Moku (Hiragana/Katakana)
PC
Android 
iOS 
Learn Hiragana with the help of some handy mnemonic images. Geared toward Western learners of Japanese, this app provides students with cute illustrations that make use of visual imagery and puns to help memorize foreign looking Hiragana characters.

 

★Japanese_Hiragana(Hiragana)
Android
iOS 

★Japanese_Katakana(Katakana)
Android
iOS
3 games in one! This game gives young learners Hiragana (Katakana) writing practice (with proper stroke order), Hiragana (Katakana) recognition practice, and a fast-paced card game involving character and vocabulary recall! All for free (ads are displayed in app but can be disabled by disconnecting your device from the Internet)! A decent sized number of vocabulary words and a wide variety of difficulty settings makes this app very useful for beginning learners of Japanese.

Kana Karate (Hiragana/Katakana/Kanji)
Android
"Kana Karate is a fighting-based word quiz game where you memorize words of a vocabulary in a challenging, but fun way with different opponents. Practice and improve your vocabulary in Japanese kana (hiragana and katakana), kanji and other 5 languages (Spanish, French, German, Italian and Brazilian Portuguese). It follows the pace of your progress, presenting new words and unlocking new challenges, as you advance through the game." - description from Google Play Store

Match Kana 2 (Hiragana/Katakana)
iOS
Simple game of "concentration" where the goal is to match up Hiragana and Katakana characters. Covers glides in addition to individual Hiragana characters.