Comparison

Kilra vs Solara

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

Head to head
About

Kilra

Track your symptoms and health metrics to uncover personalized patterns and correlations. This app uses on-device AI to analyze your data, providing actionable insights and doctor-ready reports. It integrates with Apple Health for a comprehensive view of your well-being.

Highlights
  • On-device AI pattern detection
  • Log 30+ symptoms with details
  • Personalized wellness score
  • Correlations with lifestyle factors
  • Doctor-ready PDF reports
  • Health journal with mood tracking
  • Medication tracking and reminders
  • Apple Health integration
Read full description

Kilra is a symptom tracker for people living with a chronic condition. Log what you feel, log what you do, and Kilra shows you what the two have in common. WHAT IT DOES Symptom tracking Log a symptom in about thirty seconds. Forty symptoms, severity 1-10, triggers and notes. Every entry comes straight back as a read: how today compares with your usual, how many times this week, and when these tend to land. Habit and dose tracking Record routines, medication and sleep alongside your symptoms, so there is something to compare your days against. Learns your body Kilra compares your worse days with your better ones, factor by factor, and ranks what lines up. It shows the strength of each association and how confident it is. The record keeps getting sharper the longer you log. Doctor-ready reports Your whole history on one page, formatted for an appointment. Visits, labs, dose changes and everything you logged, in order. BUILT AROUND ONE DAILY HABIT Open it, tap a number, done. The home screen opens on what you have recorded rather than on a form. Nothing is withheld behind a countdown - your record starts working the first time you use it and improves every day after. PRIVATE BY DESIGN Your health data stays on your device. Analysis runs on your iPhone, not on a server. No account needed to start. HONEST ABOUT WHAT IT IS Kilra finds associations in your own data. It is a tracking tool, not a medical device, and it does not diagnose. It will tell you when it does not have enough data to say something, rather than guessing. Every number it shows you is one you can check. SUBSCRIPTION Kilra is a paid subscription with weekly, monthly and annual plans. The annual plan includes a 3-day free trial. Payment is charged to your Apple Account at confirmation. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel in your Apple Account settings. Terms of Use: https://symptly-privacy.vercel.app/#terms Privacy Policy: https://symptly-privacy.vercel.app

About

Solara

Predicts weather-related pain like headaches and joint aches the evening before. Log your symptoms to identify personal triggers and plan your week around potential discomfort.

Highlights
  • Pain risk forecast
  • Evening weather warnings
  • Personal trigger logging
  • 7-day outlook
  • Hourly weather data
  • Space weather data
  • Apple Health integration
Features
Read full description

Know the headache and achy-joint days the weather brings — the evening before. Pressure drops, storms and humidity hit many people as headaches, aching joints and heavy days. Solara watches the weather where you live and warns you the evening before, so a bad day doesn't catch you off guard. EVERY EVENING - Tomorrow's pain risk from pressure, storms and humidity - A heads-up notification before a pressure drop or storm - A 7-day outlook to plan around your heavy days YOUR OWN TRIGGERS Log how you feel in a few seconds. Solara lines up your headaches, joint pain, fatigue and sleep with the weather on those days and shows which conditions come before your bad days — built on your own data, not generic advice. WHAT'S INSIDE - Pain risk forecast for tomorrow and the week ahead - Evening warnings for pressure drops and storms - Barometric pressure, humidity, storms and air quality, hour by hour - Space-weather data from NOAA - Quick daily check-ins and your personal patterns - Apple Health (sleep, steps, heart rate) — read-only, never used for ads Solara is a wellness tool, not a medical device. It does not diagnose or treat any condition. If you have frequent or severe headaches or pain, talk to your doctor. SUBSCRIPTION Solara Plus: weekly (billed today) or yearly with a 3-day free trial. Payment is charged to your Apple ID. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the period. Manage or cancel anytime in your App Store settings. Terms: https://hazard.studio/apps/solara/terms.html Privacy: https://hazard.studio/apps/solara/privacy.html

Screenshots

Kilra4 screens
Solara4 screens

Verdict

The call

The clearest difference is rating: Kilra at 4.4 against Solara's 3.7. On price, ratings volume, update cadence and ads 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. Kilra sells 2 in-app purchases, starting at $9.99 per month and Solara sells 4 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Kilra holds the better App Store score, 4.4 against 3.7. Both are backed by a comparable volume of ratings — 8 and 3 respectively.

UpkeepUpdate frequency

Kilra ships an update weekly, Solara every 5 days. Both last shipped on October 31, 2026.

Scorecard1 real difference · 9 level
Kilra versus Solara: the parameters behind the verdict, then further details
ParameterKilraSolara
PriceFreeFree
Rating4.4 (8 ratings) — better3.7 (3 ratings)
Positive reviews50.0% of reviews—
Number of ratings8 — better3
Update frequencyWeeklyEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhoneiPhone
Requires iOS17.017.0
Further details — not scored
Size40 MB37 MB
Age rating17+4+
DeveloperEswar KrishnanVitali Mikhailouski

Customer experience

Kilra

All ratings8 ratings
Positive75.0%
Neutral12.5%
Negative12.5%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Solara

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Kilra

Subscriptions2
  • Monthly$9.991 Month
  • Symptly Yearly Subscription3 Days trial$39.991 Year
4 purchases

Solara

Subscriptions3
  • Solara Plus Monthly$4.991 Month
  • Solara Plus Weekly3 Days trial$6.997 Days
  • Solara Plus Yearly3 Days trial$49.991 Year
One-time1
  • Solara Plus Lifetime$129.99

Questions

Is Kilra free?
Kilra is free to download, with in-app purchases available.
Is Solara free?
Solara is free to download, with in-app purchases available.
Which has better reviews, Kilra or Solara?
Kilra is rated higher. Kilra averages 4.4 out of 5 from 8 ratings, while Solara averages 3.7 from 3 ratings.
Do Kilra or Solara have ads?
Neither Kilra nor Solara shows ads.
Which is updated more often, Kilra or Solara?
Kilra ships an update weekly, and Solara every 5 days. Most recently, Kilra was updated on October 31, 2026 and Solara on October 31, 2026.

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