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Do you have more subscription services than you use? You may have fallen victim to manipulative tactics designed to get you to opt into and stay stuck in those subscriptions.

In a public report released earlier this month, the International Consumer Protection and Enforcement Network discussed what it called "dark patterns" in subscription services, or practices that coerce customers into making poor choices.

In January of this year, ICPEN analyzed nearly 650 apps or services that offer some type of subscription and identified seven main tricky tactics they use to manipulate your choices. Turns out, companies use these methods a lot.

75% of services that ICPEN evaluated use at least one of these tactics. 67% used more than one. Here's what you need to look out for:

What can you do to fight these tricks? You can't change the design of an app or site to avoid them, but you can be aware of them. 

When you're signing up for a subscription, don't assume the option labeled "Best choice" really is your best choice. Take the time to carefully look at all the options, even ones that aren't displayed prominently. 

In terms of urgency or social proof, simply ignore calls that tell you how many people are looking at an item or how quickly it's selling. Even if that count is accurate, the most popular choice of other shoppers doesn't have to be yours. 

Lastly, if you do pay for a subscription, find out how to cancel it before you join. If the cancellation process is straightforward, you're probably in the clear, but if it's convoluted, consider whether it's worth the hassle.