Need an Objective-С developer with good experience in
- high math and making complex data-driven apps,
- online databases (icloud, firebase, realm),
to work on a user-friendly mobile spreadsheet with formulas (like Excel).
State of the project: The app was published. Check it here: [login to view URL]
The developer I work with is focused on my new app. I need additional develooer to fix bugs and develop features of the released app.
- Fix interface bugs and do some refactoring on the interface
- Try to find why notes are disappearing and fix it from tome to time
Rising talents and fresh comers to Upwork with relevant experience are welcome!
Russian-speaking developers are welcome (not a must, but an advantage).
Agencies are not considered.