# Mobile Application

- [Intro](/mobile-application/intro.md)
- [Platforms and Media](/mobile-application/mobile-application.md): Epicollect5 mobile app is available for Android and iOS.
- [Mobile App Authentication](/mobile-application/mobile-app-authentication.md): Mobile App Security: Single-Device Authentication with Continuous Web Access
- [Mobile App Permissions](/mobile-application/mobile-app-permissions.md): To deliver a smooth and efficient user experience, Epicollect5 requests several permissions on your device. Here's why these permissions are essential.
- [Add Projects](/mobile-application/add-projects.md)
- [Add Entries - Mobile (Single Form)](/mobile-application/add-an-entry.md): Add entries to a project that consists of a single form using the mobile app
- [Add Entries - Mobile (Multiple Forms)](/mobile-application/add-child-entries.md): Add entries to a project that consists of multiple forms using the mobile app
- [Edit Entries](/mobile-application/edit-entries.md)
- [Re-use answers](/mobile-application/re-use-answers.md): TEXT and TEXTBOX question types feature a look-up on previously entered answers to save time when collecting entries.
- [Save & Resume Entries](/mobile-application/saveresume-entry.md)
- [Upload Entries](/mobile-application/upload-entries.md): Entries must be uploaded manually by the users as there is not any automatic syncing feature in Epicollect5.
- [Upload Errors](/mobile-application/upload-entries/upload-errors.md): Sometimes entries uploaded are invalid therefore they will generate an error when trying to upload them. For example missing required questions or answers not being unique.
- [Incomplete Entries](/mobile-application/upload-entries/incomplete-entries.md): For consistency, each entry must be completed by answering all its questions. An entry flagged as incomplete cannot be uploaded.
- [Missing required aswers](/mobile-application/upload-entries/missing-required-aswers.md): Entries with required questions not answered cannot be uploaded.
- [Unsync entries](/mobile-application/upload-entries/unsync-entries.md)
- [Entries Limits](/mobile-application/entries-limits.md)
- [Download Entries](/mobile-application/download-entries.md)
- [Delete Entries (App)](/mobile-application/delete-entries.md)
- [Delete Projects (App)](/mobile-application/delete-project-mobile-app.md)
- [Location Questions](/mobile-application/location-questions.md): Location of the user device can be acquired adding a LOCATION question.
- [Add Bookmarks](/mobile-application/add-bookmarks.md)
- [Project Info](/mobile-application/project-info.md)
- [Share Media Files](/mobile-application/export-photos.md)
- [Adjust Font Size](/mobile-application/adjust-font-size.md)
- [Filter Entries](/mobile-application/filter-entries.md)
- [Beta Updates](/mobile-application/beta-program.md)
- [Xiaomi Troubleshooting](/mobile-application/xiaomi-troubleshooting.md): There have been some reports of the Epicollect5 app having issues on Xiaomi devices.