Comparison

Lua Care vs Gutline

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

Head to head
About

Lua Care

Features
Read full description

Some mornings you wake up with no energy even after eight hours of sleep. Other days you bloat and have no idea why. The week before your period, you don't recognize your own moods. You're not overreacting. It's not just stress. It's your body responding to hormones no one ever taught you to read. Lua isn't another period calendar. It's the first app that connects what you eat, how you sleep, how you feel and the hormonal phase you're in โ€” and shows you the full pattern: why it happens, what to expect, and what to do. In under 2 minutes a day, you log how you woke up. Lua does the rest. And the more you use it, the better it knows you. Your hormonal profile sharpens with every entry: within months, Lua understands your patterns better than a 15-minute appointment. WHAT LUA DOES FOR YOU โ€” Know what's coming before you feel it Your hormone curve, your likely symptoms and what to do, day by day. โ€” Your food, translated Take a photo. Lua learns which foods give you energy and which trigger your symptoms, based on your phase. Not calories. Context. โ€” Connects to Apple Health Reads your sleep, heart rate and variability on its own. No manual logging. โ€” Finds patterns you'd miss on your own What you ate Tuesday and how you slept Thursday, connected. Real correlations, not guesses. โ€” Walk into your appointment with data Share a secure hormonal profile with your doctor: your patterns, signals and history in one link. No more "I don't know how to explain it." โ€” A chat that actually knows you Ask it anything. It knows your history and answers with your context โ€” not the first thing that pops up on Google. FOR YOUR STAGE, NOT FOR "WOMEN" Regular cycles, irregular, PCOS, perimenopause, menopause. Lua adapts to your body and your moment. It doesn't treat everyone the same. 73% of women with hormonal symptoms wait more than 2 years for a diagnosis. Meanwhile they're told it's "your age" or "just stress." Lua doesn't replace your doctor โ€” it helps you walk in with data, not doubts. Your data is yours. Anonymous account by default. You decide what to share. Lua Care is an informational wellness tool. It does not replace professional medical advice. Consult your doctor before making health decisions. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://lua.care/privacy

About

Gutline

Features
Read full description

Gutline is a private diary for people managing IBS and following a low-FODMAP diet. It takes about ten seconds a day, and it turns your record into a report you can hand to a doctor. WHAT YOU LOG - Overall severity, 0 to 10 - The Bristol stool scale, with an explicit "not recorded" - Eight symptoms (bloating, pain, gas, urgency, fatigue, nausea, constipation, diarrhea), each mild, moderate or severe, plus symptoms of your own - Medication taken, urgency and blood, if they apply - The triggers you choose, plus your own typed tags - Meals, drinks and habits, with a reaction check afterwards: none, mild, moderate or strong - Your medication and therapy plan, ticked off each day - A photo on any entry WHAT YOU GET BACK - Today at a glance: severity, stool, symptoms, medication and food in one view - "Same as last" for a steady day: one tap copies your previous entry - History grouped by day and searchable - Patterns: severity over time, stool types, symptom averages and the tags you use most - Highlights: plain sentences of fact from your own entries - What tends to travel with your worse days, from your own record - Your days with and without each item on your plan, side by side - What you recorded after each meal, drink or habit - A day by day view of severity and stool - A clear PDF report for your next appointment, and a CSV export PRIVATE BY DESIGN - No account, no sign in, no server - Your diary stays on your iPhone and leaves only when you export it - Face ID lock, if you want it - No ads and no tracking GUTLINE PRO Gutline is a subscription. Gutline Pro includes unlimited entries, 14 and 30 day patterns, the tag comparison, the PDF report and the CSV export, the photo log, the Face ID lock and a daily reminder. Any free trial on offer is shown before you subscribe. If you stop subscribing, everything you logged stays readable on your iPhone. Gutline records what you enter. It is not a medical device and it does not give medical advice. Talk to your clinician about your symptoms. Gutline Pro is an auto-renewable subscription. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://mk-sd.com/en/gutline/privacy

Screenshots

Lua Care4 screens
Gutline4 screens

Verdict

The call

Lua Care and Gutline are too close to call on the numbers: across 6 compared parameters โ€” price, update cadence, ads and in-app purchases among them โ€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Lua Care sells 4 in-app purchases, starting at $4.99 per month and Gutline sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Lua Care ships an update every 3 weeks, Gutline every 2 weeks. Both last shipped on October 31, 2026.

ScorecardNo meaningful differences
Lua Care versus Gutline: the parameters behind the verdict, then further details
ParameterLua CareGutline
PriceFreeFree
Update frequencyEvery 3 weeksEvery 2 weeks โ€” better
AdsNoNo
In-app purchasesYesYes
DevicesiPhoneiPhone
Requires iOS16.1 โ€” better17.0
Further details โ€” not scored
Size53 MB6 MB
Age rating12+4+
DeveloperDiego AlonsoMaximilian Kuchlbauer

In-app purchases

4 purchases

Lua Care

Subscriptions3
  • Lua Premium Monthly$4.991 Month
  • Lua Bot$37.991 Month
  • Lua Premium Yearly$49.991 Year
One-time1
  • 28-day plan$14.99
2 purchases

Gutline

Subscriptions2
  • Gutline Pro Monthly7 Days trial$4.991 Month
  • Gutline Pro Yearly7 Days trial$29.991 Year

Questions

Is Lua Care free?
Lua Care is free to download, with in-app purchases available.
Is Gutline free?
Gutline is free to download, with in-app purchases available.
Do Lua Care or Gutline have ads?
Neither Lua Care nor Gutline shows ads.
Which is updated more often, Lua Care or Gutline?
Lua Care ships an update every 3 weeks, and Gutline every 2 weeks. Most recently, Lua Care was updated on October 31, 2026 and Gutline on October 31, 2026.

Other comparisons