A verdict you can’t miss.
Every check ends with a big, clear call and a fit score out of 10. Then the breakdown: colors, fit, occasion and details, so you know exactly why.
Your AI outfit bestie
Snap a mirror selfie, tell YayNay if you’re posting it or going out, and get an honest verdict in seconds: a fit score, vibe match, viral potential, quick fixes and captions ready to post.
How it works
No more sending the same mirror pic to five group chats. YayNay gives you a straight answer before you post or head out the door.
Take a mirror selfie or pick one from your library. Full body works best, but any fit pic will do.
Posting it? Pick the platform, post type and vibe. Going out? Pick the place, who you’re with, and day or night.
A big YAY, ALMOST or NAY, plus your fit score, what’s slaying, quick fixes, and captions if you’re posting.
One fit, three plans
Context is everything
A fit isn’t good or bad in a vacuum. YayNay judges it for where it’s actually going, so one look can be a YAY for the concert and a NAY for the interview.
8.6/10. Easy, cool and built for a crowd. The white high-tops keep it fresh.
6.8/10. Swap the beanie for a cap and push the sleeves up. Instantly more daytime.
3.9/10. Love the cargo energy, but trade the hoodie for a crisp overshirt and lose the beanie.
Features
Honest, specific, and actually useful. Like a stylish best friend who’s always awake.
Every check ends with a big, clear call and a fit score out of 10. Then the breakdown: colors, fit, occasion and details, so you know exactly why.
Viral score & captions
See your viral potential, then pick from 3 caption ideas and a set of hashtags made for your platform.
“sage advice: always match your set” #ootd #matchingset #brunchfit
Upload two outfits and YayNay picks the winner for your plan, with the reasons why.


Date night: the slip skirt and leather jacket are candlelight-ready. The blazer look is cute, just more brunch than dinner.
Same fit, three ways to hear it.
This color is so you. One tiny tweak: roll the sleeves and you’re golden.
Cute, but the jeans are fighting the blazer. A straighter leg fixes it.
The blazer is doing all the work. Those jeans? Not tonight.
Look back at past fits, scores and captions any time. Your fit diary lives privately on your iPhone.
YAY 8.9
YAY 8.7
ALMOST
YAY 9.2Stored on your device, not in a cloud.
Verdicts, fixes and captions in English, French, German, Spanish and Turkish.
Your bestie says
Not just a number. A full, specific read on your fit, written like a friend who knows fashion.
YAY!
8.7/10Fit score
92%Vibe match
81%Viral potential
Bestie saysOkay, sage queen! The matching knit set looks so intentional, and the basket bag tells the whole Sunday brunch story. This is a save-worthy post.
Pro tipShoot by the window around midday. Soft daylight makes sage look richer and your skin glow.
Illustrative example. Real results depend on your photo and plan.
Privacy promise
Mirror selfies are personal. YayNay is built so your photos stay yours.
Your fit diary, photos and results are saved only on your iPhone.
A photo is sent only when you ask for a check, and only after you say it’s okay.
We don’t keep your photos or results. Your verdict comes back to your phone, and that’s it.
No sign-up, no email, no ads and no cross-app tracking.
Want the details? Read our privacy policy
Your first 2 checks are free. Then go YayNay Premium, weekly or yearly, for unlimited outfit checks and This or That battles.
Download on theApp StoreFor iPhone with iOS 18 or later. Premium auto-renews until cancelled in your Apple Account settings.
Support
Can’t find your answer here? Email us and include your iPhone model, iOS version and what happened.
Email supportYayNay (“Selfie Outfit Checker: YayNay”) is an AI outfit checker for iPhone. Upload a fit pic, tell it whether you’re posting it or going out, and get a YAY, ALMOST or NAY verdict with a fit score, vibe match, viral potential or head-turn factor, a breakdown, quick fixes, caption ideas and hashtags.
YayNay is free to download and includes 2 free outfit checks. YayNay Premium is an auto-renewing subscription, weekly or yearly, that unlocks unlimited outfit checks and This or That battles, subject to a fair-use daily limit. The app shows the price in your local currency before you buy.
Subscriptions are managed by Apple. On your iPhone, open Settings, tap your name, then Subscriptions, choose YayNay and tap Cancel Subscription. Cancel at least 24 hours before the renewal date to avoid being charged for the next period. Deleting the app does not cancel the subscription.
Use Restore Purchases on YayNay’s paywall or in Settings while signed in with the Apple Account you used to subscribe. Premium comes back, including after reinstalling or on a new iPhone.
Your photos and results are saved only on your iPhone. When you ask for a check, the photo is resized and sent securely for analysis, then the result comes back to your phone. We don’t store your photos, prompts or results on our servers. YayNay asks for your permission before the first analysis, and you can change it in Settings. Details are in our privacy policy.
Only upload photos of yourself, or of people who agreed to it. Never upload photos of children; YayNay declines them. Nudity and other inappropriate content aren’t allowed.
Open Settings in YayNay and choose “Delete account & data”. This erases your profile, fit diary, photos and settings on your device and deletes your anonymous account record on our server. A device marker is kept so free checks aren’t granted twice.
No. YayNay’s verdicts are opinions for fun and inspiration, and they can be wrong. Style is personal, so if you love it, wear it.
YayNay runs on iPhone with iOS 18 or later and is available in English, French, German, Spanish and Turkish.
Apple processes all payments and refund requests. You can request an eligible refund at reportaproblem.apple.com, subject to Apple’s policies and your legal rights.