Comparison

SOL vs Still Well

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

SOL

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SOL (솔) is Korean for pine tree. Like the pine that endures through every season, SOL stands with you through every fast. WHAT MAKES SOL DIFFERENT Most fasting apps just show a timer. SOL shows you what is happening inside your body as the hours pass, with the research behind it. As you fast, SOL guides you through eight phases: Fed State, Insulin Dropping, Fat Burning, Ketosis, Autophagy, Deep Autophagy, Growth Hormone Surge and Immune Reset. FEATURES • A calm timer with a progress ring and phase markers • Your fast on the lock screen and in the Dynamic Island • All 8 phases explained, with links to the published studies • A goal dial from 12 to 72 hours, or an open fast with no limit • Started earlier? Set the time you last ate, and correct it later • Switch the timer between time elapsed and time to go • A daily reminder to start your fast • Your Journey: stats, streaks, a 7 day view and your history • Edit, add or delete past fasts • Guidance on breaking your fast gently • Home screen widget • "Start my fast" with Siri • Share your results with a beautiful card • Light and dark mode with handcrafted watercolor textures FASTING TOGETHER If you like, join the live count of people fasting right now. It is optional, anonymous and off until you turn it on. YOUR DATA No account, no ads, no tracking. Your fasting data stays on your device unless you choose to join the community count or turn on iCloud backup. DESIGNED WITH INTENTION SOL is inspired by the simplicity of nature. No clutter and no paywall. Just you, your fast, and a clearer picture of what your body is doing. SOL is free. If you enjoy it, you can leave a tip. ABOUT THE SCIENCE Phase information is based on peer-reviewed research, with direct links to the sources. Some findings come from animal studies, and every body responds differently. SOL offers general wellness information and is not medical advice. Please talk to a doctor before fasting, especially for longer fasts. Begin your fast. Know your body. Grow like the pine.

About

Still Well

This app offers a personal mental wellness companion to help manage overthinking, anxiety, and stress. It features an AI companion for conversations, guided mental workouts, and calming games to shift focus. Daily check-ins and bite-sized courses help build awareness and understanding of overthinking patterns.

Highlights
  • AI companion for chat support
  • Guided mental workouts
  • Calming distraction games
  • Daily overthinking pattern tracking
  • Bite-sized learning courses
  • Companion evolution
Features
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Still Well is your personal mental wellness companion, designed to help you manage overthinking, anxiety, and stress in a fun, engaging way. Meet Luna — your AI companion who grows with you. Talk to Luna anytime through text or voice chat when you're spiraling, need to vent, or just want someone to listen. FEATURES: • Voice & Text Chat — Talk to Luna out loud or type when you need support. She's always there, no judgment. • 6 Guided Mental Workouts — From Breathing Reset and 4-7-8 breathing to 5-4-3-2-1 Grounding and Focus Mode, each exercise is voice-guided and designed to calm you down in 60 seconds. • Mind Filler Games — Distract your brain on command with calming games like Mind Filler, where you pop orbs in the sky to shift your focus. • Daily Sync Check-ins — Track your overthinking patterns daily and build awareness over time. • Grow Tab — Learn why you overthink with bite-sized courses and insights. • Companion Evolution — Watch Luna level up and evolve as you practice wellness habits. Still Well isn't therapy — it's your pocket companion for the moments between. Whether you're spiraling at 2am or need a quick reset before a meeting, Still Well is here. SUBSCRIPTION INFO: Still Well offers a Premium subscription with a 3-day free trial. Subscriptions auto-renew unless canceled at least 24 hours before the end of the current period. Payment is charged to your apple account at confirmation of purchase. FEATURES ALL HIDDEN BEHIND A PAYWALL PRICING 49.99 12.99 6.99 Privacy Policy: https://atlantic-eocursor-6d3.notion.site/Still-Well-Privacy-Policy-33c83ea96f6180df976ed2ae0114bd36 Terms of Use: https://atlantic-eocursor-6d3.notion.site/Form-Flow-EULA-93457e1798a842059bdf19baa5c81805

Screenshots

SOL4 screens
Still Well4 screens

Verdict

The call

The clearest difference is update cadence: Still Well at daily against SOL's fortnightly. SOL's advantage is iOS requirement (16 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. SOL sells 3 one-off in-app purchases and Still Well sells 3 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

SOL ships an update fortnightly, Still Well daily. Both last shipped on October 24, 2026.

Scorecard2 real differences · 8 level
SOL versus Still Well: the parameters behind the verdict, then further details
ParameterSOLStill Well
PriceFreeFree
Rating—5.0 (9 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—9 — better
Update frequencyFortnightlyDaily — better
AdsNoNo
In-app purchasesYesYes
Monetization—Subscription
DevicesiPhone, iPodiPhone, iPad
Requires iOS16 — better18.0
Further details — not scored
Size7 MB46 MB
Age rating4+4+
DeveloperDanny LinsnerCHRISTIAN MICAH JONES

In-app purchases

3 purchases

SOL

One-time3
  • Seedling Tip$1.99
  • Sapling Tip$3.99
  • Pine Tip$8.99
3 purchases

Still Well

Subscriptions3
  • Stillwell Pro Weekly$6.997 Days
  • Stillwell Pro Monthly$12.991 Month
  • Stillwell Pro Annual3 Days trial$49.991 Year

Questions

Is SOL free?
SOL is free to download, with in-app purchases available.
Is Still Well free?
Still Well is free to download, with in-app purchases available.
Do SOL or Still Well have ads?
Neither SOL nor Still Well shows ads.
Which is updated more often, SOL or Still Well?
SOL ships an update fortnightly, and Still Well daily. Most recently, SOL was updated on October 24, 2026 and Still Well on October 24, 2026.

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