Edu Box app for iPhone and iPad

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A box of apps about education.
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Currently, it includes four apps, and more apps will be added soon.

Four apps are Periodic Table of Elements, English Idioms, Formulas and Medical Test for USMLE.

Main Features:

Periodic Table of Elements:
- No network needed to view all data
- Divided into four sections, that are Number,Name,Symbol,State.
- Show all detail properties for a certain element, include Basic Properties, Atomic Properties and Thermo Properties.
- Direct link to Wikipedia for every element.
- Easy to use.

English Idioms:
- About 9,000 Idioms on local database.
- Every idiom has the definition and explanation.
- View Idioms by random.
- Search idioms by keywords

Formulas:
- Over 1,500 formulas.
- Tips and examples for many equations and concepts.
- 15 main categories, and every categories have a lot of sub-categories.
- Easy to find a formula for a certain field.

Medical Test for USMLE:
- For USMLE.
- Over 300 testing questions.
- In every virtual testing will show 50 random questions.
- Testing result will be given when you finished.