Hook
Start free
Painting of a hillside terrace above Sidi Bou Said at sunset, with agave and cactus in the foreground and Boukornine's twin peaks across the Gulf of Tunis.

Know what's worth posting.

Hook watches every video in your category, separates real reach from bought, and turns what actually worked into a brief you can shoot.

Instagram

Want a walkthrough first? Book a demo →

The blind spot

You're copying fake viral videos.

The numbers look real. Your AI can't watch the video, so it copies them anyway.

312×
90%of views paid
Meta Ad Library
VIRALBoosted4 active ads behind this post
188×
78%from the creator's audience
Disclosed #ad
VIRALPaid collabReach borrowed, not built
241×
64%of comments from bots
Comment audit
VIRALFake engagementRepeated phrases, no watch time

Illustrative examples, not a real account.

The product

Find the format. Then shoot it.

Hook searches what is working in your category, learns how you sound, and hands back a shot list and an assembled cut.

01

Search viral formats

Query the category the way you would search it, and get back the reels that actually landed.

Keyword topicsLive
raising kids like the 90s66
02

Learns you and your market

Direct competitors, the creators they pay, and the media accounts setting the format. All read on the same 33 dimensions as you.

EcosystemLive
Direct competitors
6
Creators
8
Media and category leaders
5
You
1
20accounts tracked33dimensions each
03

Tells you what, where and how to film

Four drawn scenes with the framing, the timing and what each beat has to do.

Shot listExample
Storyboard sketch: To camera, phone at arm's length, kitchen
0:00 HookTo camera, phone at arm's length, kitchen
Storyboard sketch: Overhead, hands only, no face
0:02 DemoOverhead, hands only, no face
Storyboard sketch: Cut to the kid reacting, sound on
0:06 ProofCut to the kid reacting, sound on
Storyboard sketch: Walk out, caption carries the ask
0:09 CTAWalk out, caption carries the ask
04

Edits the video for you

Ask for the change in words. Hook re-cuts the timeline, drops the voiceover where on-screen text can carry it, and shows you what moved.

Assembled cutExample
Drop the intro, keep the hack, add text where the voice cuts out
Trimmed 0:00 to 0:08. Five beats left, 21 seconds. Voiceover drops at 0:12, captions carry it.
Frame from the source reelFrame from the source reelFrame from the source reelFrame from the source reelFrame from the source reel
VO
voice off
TEXT
text ontext on
0:000:070:140:21

What Hook watches

TikTok Instagram Reels YouTube Shorts Meta Ad Library

One coworker, three surfaces

In Hook, Slack, Claude,
you decide.

Same tracked accounts, same boost-checked numbers — wherever you ask.

northbound.co⌄
AI Scriptwriter
Turn Northbound’s #1 format into a reel script.
Script intakePOV
What’s the core promise of the hook?
AThe thing nobody tells you
BFaster than the old way
CProof it actually works
DA myth worth busting
Select an option to continue →1 / 4
Ask anythingSonnet 4.6

In the app · AI Scriptwriter

See the dashboard →Connect the MCP →

Built by a video creator,
for non-creators.

Meet @ezzedeean
On a shoot, filming from the back seat Ezz with his camera Ezz on location Ezz between flights Ezz, unfiltered
100M+views generated
10years making content
70K+followers, all platforms
7.6M
1.5M
2.5M
798K
1.7M
648K
567K
527K
263K
249K
392K
366K
201K
304K
121K
7.6M
1.5M
2.5M
798K
1.7M
648K
567K
527K
263K
249K
392K
366K
201K
304K
121K

Talk to the person who built it.

Book a demo with Ezz
Backed by angels and operators from
InstagramRevolutDeloitteAmazonShopify
Pixel-art coastline with contour lines traced over the cliffs.
Virality, reverse-engineered

Stop guessing which video was the fluke.

Point Hook at your category and see what actually earned its reach.

Start free Book a demo