Social media is full of videos promising “this AI tool is completely free”. Then you sign up and hit a paywall, a watermark or a charge you did not expect. Most of these tools are not scams; they are freemium products with limits the video did not mention. These eight warning signs help you spot the catch before you spend time, or money.
1. It asks for a payment card to start
If a “free” tool needs your card before you can try it, it is almost always a free trial that will turn into a paid subscription unless you cancel. That is the clearest sign of all. If you go ahead, note the trial end date and set a reminder.
2. The pricing page is hard to find
Honest tools put their plans one click from the home page. If you have to dig, or the page only says “contact sales”, expect the free part to be small.
3. Free credits, but no clear price per action
“50 free credits” means little until you know what one image or one minute of video costs in credits. If premium settings quietly cost several credits each, a free allowance can disappear in a few clicks. Our guide to AI credits explains how to read these.
4. Results are watermarked or low resolution
Many image, video and voice tools let you create for free but only download a watermarked or low-quality version. The full version needs a paid plan. If you need something usable, check a sample download before investing time.
5. Commercial use is not allowed on the free plan
Some tools let you make anything for free but forbid using it for business, ads, client work or monetised videos unless you pay. This hides in the terms of service, not the ad. If you create for work, look for “commercial use” in the plan comparison. Our guide on using AI images commercially goes deeper.
6. The best features are always “Pro”
A demo video shows off the newest model, longest output or fastest speed. The free plan uses an older model or a much shorter limit. If the features you saw are labelled Pro, Plus or Premium on the pricing page, the free version will not match the demo.
7. The free plan has a daily queue or wait time
“Free, but slow” is common. During busy hours, free users may wait minutes per result or be pushed to the back of the queue. Fine for trying things, frustrating for real work.
8. Annual billing is the default
When you click upgrade, check whether the price shown is per month but billed yearly. Some checkouts preselect annual plans, which means a much bigger charge up front and fewer refund options.
What to do before you sign up
- Open the pricing page and find the free plan’s exact limits.
- Search the help centre for “refund”, “cancel” and “commercial use”.
- Prefer tools that say “no credit card required”.
- Use a card or payment method that lets you see and stop subscriptions easily.
- If you start a trial, set a calendar reminder one day before it ends.
Free is fine, hidden limits are not
Running AI costs real money, so limits are normal. The problem is limits you only discover after you have signed up. That is exactly what WhyDecoded’s tool pages are built to answer: what the free plan includes, whether you need a card, and what the catch is, checked against each tool’s own pricing page. Browse the AI tools directory before you sign up for the next one.
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