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haveseen › Marvel's Avengers Assemble
Marvel's Avengers Assemble — S4 E3: The Sleeper Awakens
2013 · Disney XD · Action, Adventure, Science-Fiction
The Avengers must stop the Red Skull and his Sleepers!
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Questions
Is haveseen free?
Yes. haveseen is free to use — log as many shows, anime and films as you like, and create a free account to sync them between devices.
Can I talk about episodes without spoilers?
Yes. Every episode and film has its own discussion, and you only see it once you’ve watched that episode. Comments that mention later episodes are hidden behind a spoiler warning. You can reply, upvote, post GIFs and make memes from the episode’s stills.
Do I need to download an app?
No. haveseen runs in your web browser on any phone, tablet or computer. On your phone you can add it to your home screen so it opens like an app.
Can I import my Netflix or Prime Video watch history?
Yes. Streaming services don’t let other apps read your history directly, so haveseen imports the file or page they let you download or copy. The Upload page walks you through it for Netflix, Prime Video, Disney+, Crunchyroll, Max and Apple TV+.
I used TV Time. Can I bring my history over?
Yes. TV Time shut down on 15 July 2026. If you downloaded your data export before then, drop the .zip on the Upload page and every episode you ticked off comes across, season by season.
Does haveseen track anime?
Yes. Anime uses AniList’s database, including episode titles and when the next episode airs, and you can import your MyAnimeList list.
Who can see my watch history?
It’s up to you. Without an account, your list stays in your browser. With an account, it’s private until you set up a profile to share with friends. Profiles are public by default, and you can switch yours to friends and approved followers only at any time. Your notes are never shown to anyone. You can export or delete everything whenever you like.