Instagram Spy App.
Track anyone, secretly.
Secretly track any public profile's follows, followers, stories and posts — daily, anonymously, without a password. Run a free spy scan below. They'll never know.
248,310 profiles tracked this month
See what they do — not just what they post
Who they follow
Every new account they start following, in chronological order — the activity that says the most.
Who follows them
Their newest followers, so you see who's entering their world.
Stories & highlights
Watch their active stories and saved highlights anonymously — never on their viewer list.
Posts & reels
Browse their recent grid in full quality, without logging in.
Daily reports
Add up to 3 profiles to your watchlist and get a notification the moment anything changes.
Total invisibility
Your account is never involved, so there's no trace and no way for them to find out.
The safe way to keep an eye on anyone
We'll be honest about what this is. Sometimes you want to know what someone is doing on Instagram — an ex, a crush, a partner, a competitor — without them knowing you're watching. The instinct is to check their profile yourself, but that's the worst way to do it: you're logged in as you, a stray tap likes a year-old post, and the algorithm quietly starts connecting the two of you. An Instagram spy app — what people also search for as an “Instagram stalker” — does it properly, with none of that risk.
UnfollowCheck reads a public profile's activity straight from Instagram's public data and hands it to you in one place: who they just followed, who just followed them, their stories, highlights, and recent posts. Add them to your watchlist and it checks every day, sending a notification the moment they follow someone new. Your account never touches theirs, so there's no trace and no chance of getting caught.
Anonymous and safe, because you never log in
The reason it works is also the reason it's safe: you don't log in, and UnfollowCheck never asks for your password. The other person's login is never needed, and yours is never given — so there is nothing to hack and no account for Instagram to ban. That's the opposite of the “stalker apps” that demand your credentials and get accounts shut down. It's why 120,000+ people trust UnfollowCheck to watch the profiles that matter to them.
What it can't do — and won't pretend to
No honest tool can spy on a private account's posts or stories. That content is hidden by Instagram, and any app promising to unlock it is fishing for your login. UnfollowCheck respects the line: for public profiles you get the full picture, and for private ones you get the public details plus follower-count tracking over time — often enough to know exactly when something's going on.
One scan, or daily surveillance
A single scan answers what's happening right now — try it above. The Spy Watchlist in the iOS app turns it into something ongoing: up to 3 profiles, checked daily, with anonymous story viewing and downloads on top. And it works both ways — point it at your own account for unfollow alerts. All without a password, all invisible.
Spying safely, answered
What can an Instagram spy app actually show me?
UnfollowCheck shows you a public profile's full activity: who they just followed, who recently followed them, their active stories, story highlights, and recent posts — all from one scan. Add them to your watchlist and the app sends you a daily report of everything that changes.
Is the Instagram spy app anonymous?
Completely. You never log in with your own account, so nothing traces back to you. The person you're tracking gets no notification and has no way of knowing they're being watched. UnfollowCheck never asks for your password, so your own account stays invisible and safe.
Can I spy on a private Instagram account?
No tool can show a private account's posts or stories — that content is hidden by Instagram, and any app claiming to reveal it is trying to steal your login. For private profiles, UnfollowCheck shows the public details and tracks their follower-count changes over time, which often reveals when something is happening.
Do I need their password — or mine?
Neither. UnfollowCheck works entirely from public data. You never need the other person's login, and you never give it your own. That's what makes it safe: there's nothing to hack and no account for Instagram to ban.
How often does it update?
Add up to 3 public profiles to your Spy Watchlist and UnfollowCheck checks them every day, sending a notification whenever they follow someone new or gain a new follower. A single scan gives you a snapshot; the watchlist gives you ongoing surveillance.
Is it legal to use an Instagram spy app?
Using UnfollowCheck is legal because it only reads publicly available information — the same data anyone could see in a browser. It never bypasses privacy settings or accesses anything Instagram keeps private.
Why is this safer than other Instagram stalker apps?
Most 'stalker' apps demand your Instagram login and get accounts banned, or wall results behind surveys and ads. UnfollowCheck asks for nothing, runs natively on iOS, and keeps everything anonymous — which is why 120,000+ people trust it.
Track anyone. They'll never know.
Get daily watchlist tracking, anonymous story viewing, and downloads in the UnfollowCheck iOS app. Never asks for your password.