Yes, Testlio provides API.
No, Testlio doesn't provide mobile app.
Testlio is located in Palo Alto, CA
Testlio offers Quotation Based pricing model
Yes, Testlio can integrate with Jira, Trello, Asana, Pivotal Tracker and many more.You can find more integration for Testlio here
The starting price is not disclosed by Testlio. You can visit Testlio pricing page to get the latest pricing.