What TikTok is and how the app makes money
TikTok is a video app where you scroll through short clips — usually 15 seconds to 10 minutes — that the app's algorithm picks for you based on what you watch, like, and share. You do not have to follow anyone to see videos. The app learns your interests by tracking which videos you pause on, which ones you watch twice, and which creators you return to, then shows you more of the same.
TikTok makes money by selling advertising space. Brands pay to have their ads appear in your feed between regular videos, and they also pay creators directly to make videos that feature their products. The longer you stay in the app watching videos, the more ads you see, and the more valuable your attention becomes to advertisers.
The app is owned by ByteDance, a Chinese company. This ownership structure matters because it determines which government can demand your data and under what legal process — a point covered in the data section below.
Key Takeaways
- TikTok's algorithm decides what you see based on your watch history, not on who you follow, which means the app learns your interests faster than other platforms.
- The app collects your location, device information, contacts, and browsing history outside TikTok, not just what you do inside the app.
- ByteDance, TikTok's Chinese parent company, can be required by Chinese law to hand over user data to the Chinese government, with no transparency requirement.
- You can limit what TikTok collects by turning off location services, not allowing contacts access, and using the app's privacy settings to restrict who messages you and sees your videos.
- Deleting the app removes it from your phone but does not delete the data TikTok already collected about you.
How the algorithm decides what you see
TikTok's algorithm is more aggressive than other social media apps at learning what you want to watch. It does not rely mainly on who you follow — it relies on your behavior. Every time you pause a video, rewatch it, turn the sound on, or skip it, the algorithm notes that choice. It also tracks how long you watch before scrolling away, whether you watch until the end, and whether you come back to a creator's videos repeatedly.
The algorithm uses this data to build a profile of your interests and shows you videos from creators you have never followed. This is why new TikTok users see a personalized feed within hours, while other platforms take days or weeks to learn your preferences. It also means the app can show you content from creators in other countries, in other languages, and on topics you have never searched for — because the algorithm infers your interests from your behavior rather than your explicit choices.
This speed comes with a tradeoff: the algorithm is optimized to keep you watching, not to show you a balanced view. If you watch one video about a topic, the algorithm will show you many more videos on that same topic, even if those videos contain misinformation or extreme content. The app does not know the difference — it only knows that you watched.
What data TikTok collects and stores
TikTok collects far more than just the videos you watch. When you install the app, it asks for permission to access your location, your contacts, your camera, your microphone, and your photo library. It also collects your device type, your phone's unique identifier, your IP address, and information about your internet service provider.
Beyond those permissions, TikTok tracks your activity outside the app. If you visit a website that has a TikTok pixel or button on it, TikTok knows you visited that site, even if you do not click anything. If you use TikTok's login to sign into other apps or websites, TikTok sees that activity. The app also collects data about your device's operating system, your battery level, whether your phone is plugged in, and how you hold your phone — information that seems irrelevant but helps the algorithm understand your behavior patterns.
TikTok stores this data on servers in the United States and Singapore, according to the company. However, ByteDance employees in China can access this data, and the company has not published a clear policy about what data Chinese employees can see or under what circumstances they can access it.
Why TikTok's ownership matters for your privacy
TikTok is owned by ByteDance, a company incorporated in China and subject to Chinese law. Under Chinese national security law, the Chinese government can demand that ByteDance hand over user data without a warrant, without telling the company's users, and without a public record of the request. This is different from how the United States works: American companies can refuse government data requests, can challenge them in court, and must disclose how many requests they receive.
ByteDance has stated publicly that it complies with Chinese law. This means if the Chinese government asks for data about a TikTok user, ByteDance is legally required to provide it. The company does not publish transparency reports showing how many times this happens or what data is requested, so there is no way to know whether this has occurred or how often.
This does not mean the Chinese government is currently accessing your TikTok data. It means the legal structure allows it, and you have no way to know if it happens. Other countries' governments can also request data from TikTok through legal channels, but those requests are subject to different rules and are sometimes disclosed in transparency reports.
How to limit what TikTok collects
Open the app and go to your profile by tapping the person icon at the bottom right. Tap the three horizontal lines (the menu) in the top right corner, then tap Settings and Privacy. From there, you can control several things.
Under Privacy, you can change who can message you (set it to Friends only or No one), who can see your videos (set it to Private so only you can see them), and who can see your liked videos (set it to Private). You can also turn off the ability for other apps to see your TikTok activity by going to Settings and Privacy, then Apps and Websites, and removing any apps you do not recognize.
To limit location tracking, go to your phone's settings (not TikTok's settings) and find the app permissions section. For TikTok, turn off Location access. You can also turn off Contacts access so TikTok cannot see your phone's contact list. These changes happen in your phone's settings, not in the TikTok app itself, because TikTok will keep asking for permission to access these things.
You can also limit ad targeting by going to TikTok's Settings and Privacy, then Ads, and turning off Personalized ads. This does not stop you from seeing ads — it stops TikTok from using your data to choose which ads to show you. You will see random ads instead of ads chosen based on your interests.
What happens to your data if you delete the app
Deleting the TikTok app from your phone does not delete the data TikTok already collected about you. The company keeps that data on its servers. If you reinstall the app later, TikTok will recognize your account and your watch history will still be there.
To actually delete your account and the data associated with it, you must go into the app itself and request account deletion. Open TikTok, go to your profile, tap the menu, go to Settings and Privacy, then Account, then Delete account. TikTok will ask you to confirm and may ask why you are leaving. After you confirm, the company says it will delete your data within 30 days, though some data may remain in backups for longer.
If you want to delete your account but keep your videos public, you cannot do that through TikTok. You would need to read your videos first, delete your account, and then upload them to another platform. TikTok does allow you to read your data before you delete your account — go to Settings and Privacy, then read your data, and the app will email you a file with your videos, messages, and account information.
How creators make money and what that means for content
TikTok creators make money in three main ways: through the Creator Fund (which pays based on video views), through brand deals (where companies pay creators to feature products), and through gifts (where viewers send virtual gifts that creators can convert to cash). The Creator Fund pays very little — often less than one cent per 1,000 views — so most creators rely on brand deals or gifts to earn meaningful money.
This payment structure affects what content you see. Creators are incentivized to make videos that get watched completely and rewatched, which means videos designed to provoke a reaction — whether that reaction is laughter, anger, or shock — perform better than informative or balanced content. A creator who makes a video claiming something outrageous will get more views than a creator who explains the nuance of the same topic, so the algorithm will show you the outrageous version more often.
Brand deals also shape content. When a creator is paid to feature a product, they are required to disclose that it is an ad, but the disclosure is often small and straightforward to miss. You may watch a video thinking it is a genuine recommendation when it is actually paid advertising.
Frequently Asked Questions
Can TikTok see what I am doing on other apps?
TikTok can see your activity on websites that have TikTok's tracking code on them, and it can see activity on apps where you logged in using your TikTok account. It cannot directly see what you are doing in other apps unless you gave TikTok permission to access your phone's activity. You can check this in your phone's settings under app permissions.
Is it safe to use TikTok if I am under 18?
TikTok has a separate experience for users under 18 with stricter privacy settings by default — your account is private, direct messages are turned off, and some data collection is limited. However, the app still collects significant data and still shows you content chosen by an algorithm optimized to keep you watching. Parents can set up Family Pairing to see what their teen is watching and set screen time limits.
Does TikTok sell my data to other companies?
TikTok says it does not sell your data directly to third parties. However, it shares data with advertisers so they can target you with ads, and it shares data with business partners who help run the app. The distinction between selling and sharing is technical — either way, your information is being used by companies beyond TikTok.
What should I do if I see misinformation on TikTok?
You can report a video by tapping the share icon and selecting Report. TikTok reviews reports and removes content that violates its policies, but the algorithm may have already shown the video to thousands of people. If you see health or election misinformation, you can also report it to the platform, but the fastest way to stop it spreading is to not share it yourself.
Can I use TikTok without giving it permission to access my location?
Yes. When you install the app, it will ask for location permission, but you can tap Don't Allow. The app will still work, though some features like location-based recommendations may not function. You can change this permission later in your phone's settings if you change your mind.