Old dark dye plus a bright cherry reference means the app saves the goal, explains the uncertainty, and asks for proof before a full application.
TikTok-to-web pre-dye check
Check before you dye.
Bring the TikTok formula, box shade, or salon reference. Shade Diary checks your starting hair, old color history, developer risk, and realistic result before the bathroom gets messy.
Start your Color Read →Answer-first summary
What is Shade Diary?
Shade Diary is a pre-dye Color Read for at-home hair color decisions. A user brings the TikTok formula, box shade, or saved reference she is considering, then Shade Diary checks her starting hair, old dye history, sensitivity flags, developer uncertainty, and realistic visibility before she mixes color. The first paid product is not a generic hair-color try-on or a numeric beauty score. It is a qualitative read that explains what may show indoors, what may only show in sunlight, what to avoid, and what to save as a Color Receipt for Day 3 proof.
Primary job: Check before you dye
Default plan: $59.99/year
Secondary plan: $12.99/week
Hard paywall: no free trial
Entitlement: shade_diary_pro
Pre-dye check
The first paid product catches her before she mixes.
Long-term tracking still matters, but the conversion moment is earlier: she found a trend, bought a box, or saved a creator formula and wants to know if it will show up, fry her ends, or create a correction bill.
Check your color →Prior reactions and sensitivity are never treated as green.
Unknown history raises the band instead of pretending the plan is safe.
Starting level, undertone, and old color decide whether a trend is realistic today.
Developer volume, ratio, roots, lengths, and timing become first-class data.
TikTok to web checkout
The web funnel can validate revenue before the app ships.
The app should still become the diary. The public site should sell the urgent pre-dye answer now: capture the trend, build a Hair Passport, show that the Color Read is ready, then send paid users into RevenueCat Web and redeem in iOS.
1 / trend capture
Paste the formula, box shade, or TikTok.
Cherry cola, no bleach
Cowboy copper
Box dye brunette
Creator formula
2 / free Damage Check
Strand test first.
⚑ Strand test first
Patch test 48h before you mix. Old box dye may keep the copper from showing — test a hidden strand first.
3 / app redemption
Redeem in iOS, then save the receipt.
Web purchase
Redemption link
Color Read
Day 3 proof
Pricing test
Sell the answer, then let the app retain the user.
AppKitties showed revenue in both hair-color changer apps and qualitative color-analysis apps. Shade Diary should price like a high-stakes beauty decision, not a generic photo filter.
$59.99/year
Founding Shade Diary Pro: pre-dye Color Reads, receipts, Day 3 proof, saved history, and app redemption.
$12.99/week
For the user who needs one urgent dye-day decision and is not ready for annual tracking.
No free trial
Hard paywall after the Hair Passport consult. Safety stop warnings remain visible before purchase.
Checkout status:
collect paid intent on this page until RevenueCat Web, Stripe Billing, products,
entitlement
shade_diary_pro, and redemption links are approved and configured.
Planned subscriptions renew until canceled and launch with no free trial; review the
Terms and Privacy Policy.
Web purchase flow
Pay on the web, redeem in the app.
The planned checkout path uses RevenueCat Web with Stripe Billing. The site captures the user's email and plan intent now; when purchase links are configured, the same buttons can route to RevenueCat-hosted checkout and return with a redemption link for iOS.
Shade Diary Pro Annual
$59.99/year. Color Reads, Color Receipts, Day 3 proof, saved history, and app redemption.
By clicking "Start annual checkout" you authorize Shade Diary to charge $59.99/year to your payment method. Your subscription renews automatically at the same rate until you cancel. No free trial. Cancel any time via your RevenueCat customer portal or by emailing support. Paid amounts are non-refundable except where your first charge was placed within the last 48 hours. See Terms and Privacy Policy.
Shade Diary Pro Weekly
$12.99/week. One high-intent path for the user who needs a pre-dye answer now.
By clicking "Start weekly checkout" you authorize Shade Diary to charge $12.99/week to your payment method. Your subscription renews automatically at the same rate until you cancel. No free trial. Cancel any time via your RevenueCat customer portal or by emailing support. Paid amounts are non-refundable except where your first charge was placed within the last 48 hours. See Terms and Privacy Policy.
One Pro entitlement
RevenueCat maps web and iOS purchases to shade_diary_pro, then the app restores access.
Launch assets
The App Store story matches the funnel.
The first screenshots should answer the same question TikTok sends to the page: will this color actually work on my hair before I dye it?
Viral proof
Drop the formula, not just the after.
The shareable object is not a fantasy try-on. It is starting base, product, activator, timing, lighting, Day 1, Day 3, and what the user would change next time.
Starting base -> formula -> Day 3
Bathroom light vs sunlight
Will it show on dark hair?
Cowboy copper on level 5
Reserve
Reserve the first web Color Read.
Join if you are about to color at home, copying a TikTok formula, trying red or copper, or worried old dye history will turn the result into a correction.
Questions
What does Shade Diary answer before dye day?
Is there an app to check if a hair color will work before I dye?
Shade Diary is a pre-dye Color Read app for at-home hair color decisions. It checks your starting hair level, old dye history, scalp sensitivity, and target shade to explain whether a TikTok formula, box shade, or creator reference will show on your hair, need a strand test first, or require a salon pre-lighten before the color is realistic. Paste your formula at shadediary.com/check/ to get a free Damage Check before you mix.
Can Shade Diary tell me if a TikTok color will show on dark hair?
Shade Diary checks the user's starting level, old dye history, undertone, and target shade to explain whether the result is likely to show indoors, show only in sunlight, or need prep before the color is realistic.
Is Shade Diary a hair color try-on app?
Shade Diary is not positioned as a fantasy try-on app. The first paid product is a qualitative Color Read that helps the user decide whether to dye today, strand test first, soften the goal, or save the formula for a safer plan.
Does the hard paywall hide safety warnings?
No. Allergy, scalp, severe damage, and pro-only stop conditions stay visible before purchase. The hard paywall unlocks the full Color Read, Color Receipt, and tracking loop, not permission to ignore risk.
How do web payments connect to iOS?
The planned flow uses RevenueCat Web with Stripe Billing. Web purchase
links, annual and weekly products, and iOS restore all map to the same
shade_diary_pro entitlement.