Tan smarter.
Glow on time.
Sol Glow turns local UV and weather into a personalized sun plan — when to start, when to flip, when to reapply — and it gets smarter with every session.
Made for iPhone · Cancel anytime · No ads, ever
Local UV & weather
Plans built from real-time UV index, cloud cover, and your location.
Flip & SPF reminders
Front, back, reapply, and hydrate — timed so you never have to guess.
Adapts to you
Your feedback after each session retunes the next plan.
Dose-budget science
Every plan stays under a personalized burn-risk threshold.
A whole sun routine, handled.
From the first UV check to the after-glow feedback, Sol Glow guides every minute outside.
A plan made for today's sun.
Open the app and see exactly how long to tan right now — based on live UV, your skin profile, SPF, and your goal. Pick Tan, Protect, or Balanced and you're set.
- Front / back / side timing dialed in automatically
- SPF-aware: change sunscreen, the plan adapts
- Soft, Glam, and Bronze goal presets
Never miss a flip.
Start your glow and relax. Sol Glow counts down to each flip and reapply, and a Live Activity keeps your timer on the Lock Screen and Dynamic Island — so you can put the phone down.
- Flip, reapply SPF, and hydrate reminders
- Live Activity + Dynamic Island countdown
- Pick up right where you left off if you pause
SPF-aware to the minute.
Add your sunscreens, oils, and sprays once. Sol Glow factors each product's SPF and water resistance into your plan — and reminds you exactly when to reapply, front and back.
- Save your real products and their SPF
- Reapply timing tuned to what you're wearing
- Set a default for one-tap planning
Beach days, together.
Share a session with friends for pool days, vacations, and beach trips. See who's glowing, sync your timers, and keep the whole group on the same flip.
- Shared beach-day groups
- Invite real friends in a tap
- Cheer each other on
Glance from your Lock Screen.
The Glow Timer widget puts your active session, UV, SPF, and reapply status one glance away — on the Home Screen, Lock Screen, and Dynamic Island.
- Small & medium Home Screen widgets
- Lock Screen & Dynamic Island support
- Frequent live updates while you tan
Your glow, over time.
Every session lands on your calendar with UV, SPF, and outcome. Spot what gives you the best glow and skip what burns — your history makes the next plan smarter.
- Calendar of every session
- Trends and outcomes at a glance
- Backed up and synced across devices
Glowing takes three taps.
Set your skin & goal
A quick onboarding learns your skin type, sensitivity, and the glow you're after.
Get today's plan
Sol Glow reads local UV and weather and builds a timed plan with SPF guidance.
Start & flip on cue
Run the timer, follow the reminders, then log how it went so tomorrow's even better.
Built on measured UV dose — not guesswork.
Most "tanning timers" are just a stopwatch with a sunscreen nudge. Sol Glow models the actual erythemal UV dose — the sunburn-weighted energy your skin takes on — minute by minute, and keeps every session under a conservative, personalized burn-risk threshold.
The UV Index is already weighted to how strongly sunlight reddens skin, so it converts cleanly into dose. Sol Glow turns today's UV into energy per minute, subtracts what your SPF blocks, and factors in cloud cover and the surfaces around you — then tracks the running total against your estimated limit.
We don't believe in "safe tanning." UV exposure is the body's response to skin damage, so Sol Glow speaks in estimates, risk, and dose budgets — and switches to shade, protect-only, or short micro-sessions when UV runs high or you've recently burned.
What shapes your dose budget
Designed to be glanced at.
Soft, friendly, and fast — every screen gets you outside quicker.
One membership. Pick your pace.
Glow Up unlocks the full, personalized Sol Glow. Choose the billing that fits — cancel anytime.
- UV-adjusted plans tuned to today's sun
- Persistent glow timers & Live Activities
- Skin profile & sensitivity tuning
- Goal presets: Soft, Glam, Bronze
- Product-aware SPF & reapply timing
- Plans that adjust from every session
- Home & Lock Screen widgets
- Friend sessions & beach-day groups
- Advanced history & trend insights
- Flip, reapply & hydrate reminders
Auto-renews until canceled. Manage anytime in the App Store.
Good to know.
Does Sol Glow say tanning is safe?
No. UV exposure is the body's response to skin damage, so we never use phrases like "safe tanning." Sol Glow gives estimates and a dose budget that stays under your personalized burn-risk threshold, and recommends shade or protect-only mode when UV is high. It's guidance, not medical advice.
How does it know how long I should tan?
It combines live UV index and weather for your location with your skin profile, SPF, water resistance, goal, and your feedback from past sessions to estimate a sub-burn dose budget — then turns that into front/back/side timing.
Which devices are supported?
Sol Glow is built for iPhone, with Home Screen widgets, Lock Screen widgets, and Dynamic Island Live Activities. It's currently in TestFlight beta.
How much does Sol Glow cost?
Sol Glow is a Glow Up membership — $2.99/week, $4.99/month, or $24.99/year (the best value at about $2.08/month). Every plan unlocks the full app: UV-adjusted plans, timers, widgets, friend sessions, and trend insights. Billing is handled by the App Store and you can cancel anytime.
Does it work on cloudy days or indoors?
Yes. Sol Glow factors cloud cover into the plan, and on low-UV days it guides gentler sessions. It's designed around real outdoor sun, so it won't recommend tanning beds.
Your best glow starts with the right plan.
Join the Sol Glow beta and let every session teach the next one.
Made for iPhone · TestFlight beta · No ads, ever