Is there a DFS lineup optimizer that works on a phone?
Yes. DFS Studio is a DFS lineup optimizer that runs in a phone's web browser, with nothing to download. On a phone you check the players, build lineups, run the contest sim, and fill your entries file. On iPhone and iPad you can add it to the Home Screen like an app.
How does DFS Studio work on a phone?
- The tabs at the bottom of a slate switch between Entries, Players, Lineups, and Sim.
- To import your entries, tap Choose the entries file.
- One build makes up to 5,000 lineups.
Get started with DFS Studio has the first steps.
How do I add DFS Studio to my Home Screen?
- Open DFS Studio in Safari.
- Tap the Share button.
- Tap Add to Home Screen, then Add.
- Open DFS Studio from your Home Screen and sign in.
On iPhone and iPad, push notifications work only in the installed app (iOS 16.4 or later).
What needs a computer?
FanDuel's two upload tools, Upload Lineups from CSV and CSV Edit, are on its website on a computer. So use a computer to upload a file to FanDuel. How do I edit FanDuel entries with a CSV file? has the steps.
What does it cost?
A slate pass opens one slate for $3, with no plan. The monthly plan opens every slate, and its first 7 days are free. Is there a DFS optimizer with no subscription? has the prices.
Updated November 10, 2026.