The document outlines mobile app design principles, including general interface guidelines focused on usability across different mobile contexts. It also covers design guidelines specific to Android and iOS platforms, comparing some differences between the two. The principles emphasize responsive, thumb-friendly interfaces that are focused, unique, and considerate of user input while in different orientations or contexts.

1. Mobile Apps Design Principles
Byte Intelligent Systems
Doaa Fadally

2. 1. General Principles of Mobile Interface Design.
2. Android Design Guidelines.
3. IOS Design Guidelines.
4. Comparative between IOS & Android Designs.

3. General Principles of Mobile Interface Design:
1- Mobile mindset.
- Be focused.
- Be unique.
- Be charming.
- Be considerate.
2- Mobile contexts.
- Bored.
- Busy.
- Lost.

4. General Principles of Mobile Interface Design:
3- Global Guidelines.
- Responsive.
- Thumbs.
- Targets.
- Content.
- Controls.
- Scrolling.
4- Navigation Model.
- None (ex: Weather app on iPhone).
- Tab Bar (ex: Twitter on iPhone).
- Drill Down (ex: setting app on iPhone).

5. General Principles of Mobile Interface Design:
5- User input.
6- Orientation.
7- Communications.
- provide feedback.
- Modal alerts.
- confirmations.
8- First impressions.
- Your icon.
- First launch.

13. Comparative between IOS & Android Designs:

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