Yes. The app is free, in all 175 countries it sells in, and it sells nothing inside it.

Does Muscle.IO! have a free trial?

No. None of its offers (US) come with a free trial.

GamesStrategyRacing

Muscle.IO!

Name: Muscle.IO!
Rating: 4.8 (4 reviews)
Author: 波文 唐

波文唐

Prices are current as of 23 Aug 2026.

Muscle.IO! has no in-app products on record in the United States.

4.8 out of 5, based on 4 reviews.

Is Muscle.IO! free?: Yes. The app is free, in all 175 countries it sells in, and it sells nothing inside it.
Does Muscle.IO! have a free trial?: No. None of its offers (US) come with a free trial.

Last updated 3 years ago.

Muscle.IO! sells in 175 countries. It was released 3 years and 9 months ago, on 3 Jan 2023. It holds a 4.8 rating from 4 reviews.

Supports 1 language: English.