What is the best alternative to Glowy Tanning App - UV & SPF on iPhone?

SunSafe: UV Index & Tanning, S tier, #1 in tanning.

Is there a free alternative to Glowy Tanning App - UV & SPF?

Yes: SunSafe: UV Index & Tanning (S tier, #1) is free to download, with in-app purchases.

Yes. 3 apps rank above it in tanning: SunSafe: UV Index & Tanning (#1), Beam Tanning - Get Tan Fast (#2), SPF - Tan Timer & UV Tracker (#3).

Glowy Tanning App - UV & SPF is S tier, #4 of the 8 tiered apps in tanning. Here is everything that competes with it on iPhone, in tier order.

1
SunSafe: UV Index & TanningS
Free + IAP · ★ 4.7 · 16,821 ratings · score 94
Free UV Index app with real-time UV levels, a 10-day UV forecast, UV alerts and sunscreen reminders.
2
Beam Tanning - Get Tan FastS
Free + IAP · ★ 4.7 · 19,440 ratings · score 94
Free Weather app that shows your location's UV index; a paid subscription adds customized tanning routines and sunburn.
3
SPF - Tan Timer & UV TrackerS
Free + IAP · ★ 4.6 · 6,497 ratings · score 92
Shows real-time UV index for your location, with a skin-type tanning routine, tan timer and session log.
5
Tan AI: Tanning appS
Free + IAP · ★ 4.9 · 4,704 ratings · score 90
Tanning assistant that analyzes skin tone from a selfie and tracks UV index, timers, and SPF reminders.
6
UV Index & Tanning App - SunIQC
Free + IAP · ★ 4.8 · 212 ratings · score 64
Tracks UV exposure from tanning sessions and vitamin D from food and supplements, with reminders and Apple Health sync.
7
UV Index & Tanning App-TantimeC
Free + IAP · ★ 4.4 · 372 ratings · score 61
Weather app that sends UV index notifications, gives tanning time recommendations, and builds a tanning plan from a.
8
UV Guard: UV Index & TanningF
Free download · ★ n/a · 0 ratings · score 22
Checks the UV index, heat, humidity and hourly forecast, with saved places and sun exposure session tracking.

What is the best alternative to Glowy Tanning App - UV & SPF on iPhone?: SunSafe: UV Index & Tanning, S tier, #1 in tanning.
Is there a free alternative to Glowy Tanning App - UV & SPF?: Yes: SunSafe: UV Index & Tanning (S tier, #1) is free to download, with in-app purchases.
Does anything rank above Glowy Tanning App - UV & SPF?: Yes. 3 apps rank above it in tanning: SunSafe: UV Index & Tanning (#1), Beam Tanning - Get Tan Fast (#2), SPF - Tan Timer & UV Tracker (#3).