I can't set my app to public

I can’t set my app to public , its want that i pay .
i want to check how its seen at my phone the app .

Are you on a free plan? You can’t publish apps on a free plan.

FREE PLAN but if i want to see the app at my phone its stop and want money.

You won’t be able to use your app on a phone if you don’t have a paid plan. Either pay for one of the plans, or try the free trial of the business plan, or just rely on the phone preview in the builder.

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