Ad Corrector
A free tool that checks a billboard or poster design for readability and clarity before it goes to print, simulating how it will actually look from a moving car or across a street.
🔗 Visit Ad Corrector
Description
A billboard that looks perfectly clear on a designer's monitor can be unreadable from a car doing 45 mph, or lost in glare on a sunny afternoon — and by the time anyone notices, the print and installation budget is already spent. Ad Corrector lets you upload the creative and simulates exactly those real-world viewing conditions: motion blur at a chosen speed, sun glare, and distance, then scores the design on contrast, readability, and message clarity.
It goes beyond a simple checklist with an attention heatmap, a composition score for clutter and whitespace, a call-to-action strength rating, and even a budget-efficacy simulator that estimates how well the spend will perform. It's free to use with no signup, built by a designer with over 20 years of experience specifically in outdoor advertising strategy.
💬 Our review
The short version: Ad Corrector solves a narrow but expensive problem — catching an unreadable billboard before it's printed — and being both free and built by an actual outdoor-advertising veteran gives it real credibility in a niche with no obvious direct competitor.
There's no well-known dedicated tool for this specific job; general design tools like Figma or Canva can show you what an ad looks like, but they don't simulate motion blur at driving speed or sun glare the way Ad Corrector does. Because the core tool is free with no signup, there's essentially no downside to running a design through it before printing — the main limitation is that the site mentions paid "professional" features without publishing what they include or cost, so it's unclear what you'd be missing by staying on the free tier.
💰 Pricing
📊 Global score
🤖 AI-enriched data
Gratuit, sans inscription. Le site mentionne des fonctionnalités "professionnelles" payantes mais aucun tarif ni palier n'est publié.
Pros
Gratuit, sans inscription
Simulation réaliste des conditions de vue (vitesse, éblouissement, distance)
Créé par un vétéran de 20+ ans de la publicité extérieure
Notation objective et reproductible plutôt qu'un avis subjectif
Cons
Fonctionnalités "professionnelles" payantes évoquées mais jamais détaillées ni chiffrées
Tests sauvegardés limités à 5, stockage navigateur uniquement
Pas d'intégration avec les outils de design ou d'achat média