Build a crypto Wallet with With Mobile Apps

Job ID: 31457507

Budget: $250 – $750 USD

I want a bitcoin wallet with my own api, Which ever one will be cheaper, All features i need are listed below
1. Send
2. Receive
3. Swap
4. Push Notification
5. Security.
6. 3 different customization

My budget will be from $300 to $500
Thanks