- IDEA School
- Idea Store - TowerHamlets Libs
- IdeaGenerator
- Ideal Church
- Ideal International School
- Ideal Model School, Lalitpur
- Ideal Prepara
- Ideal Schools
- Idealis Buddy
- Idealogo Arcade
- Idealogo Studio
- Ideas for LEGO® EV3®
- Ideasbox for LEGO® MINDSTORMS®
- IDEATOR
- IDEA在家
- Idemat
- IdematLightLCA
- Identify Anything: Veracity
- Identify Plant : Flower & Tree
- Identify Plant : Flower & Tree
- IDentifyIt Cycads
- IDentifyIt Species
- Identitree Starter Kit
- IDEOVATE CORE
- IDeRBlog
- Idiom - Learn any language
- Idiom A Day - Spanish
- Idiom in Use Advanced English
- Idiom World
- Idiomas
- Idiomi Comuni Inglesi
- IdiomPal: Learn Idioms & Words
- Idioms and Expressions App
- Idioms and Slang Dictionary
- Idioms in English Around Town
- Idioms Land Lite
- Idioms - Express like a native
- Idiomus - Textos em Inglês
- IDIY-英語添削アイディー
- IDKD
- IDKO TRAINING
- Idle evolution: Life on Earth
- Idle Gadgets - Clicker Game
- Idle Harvester
- Idle Pet - Create cell by cell
- Idle Tank Brick
- Idle Wizard - Life simulator
- Idle World !
- IDM Interactive Digital Museum
- IDOMED LaViSIM
- IDphy
- Idreesia
- Idrættens E-læring
- IDS UCLA
- IDSA (Journals)