For an app to earn a 1-star rating, the app costs $35 per month or more. To earn a 4- or 5-star rating, the trial needs to last for seven days (some apps offer 14 days) and either doesn’t require your credit card to sign up or sends a reminder that your trial is about to end. However, it’s worth noting that not all categories applied to every app we tested. For example, a running app won’t offer much training variety and doesn’t require equipment (aside from your best running shoes, of course). Instead, you follow a series designed to