Comparison

StarFlow vs Hello Sun

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

Head to head
About

StarFlow

Experience a personalized astrology journey with detailed natal chart readings, daily cosmic insights, and AI-powered guidance. Explore lunar cycles, compatibility, and connect your inner world to the cosmos.

Highlights
  • Personalized natal chart calculations
  • Daily, weekly, monthly horoscopes
  • 13 sacred moon cycle tracking
  • AI cosmic guidance and interpretation
  • Compatibility and synastry analysis
  • Interactive cosmic clock and haikus
Features
Read full description

STARFLOW — YOUR COSMIC COMMAND CENTER StarFlow is the most complete astrology experience on your phone. Every reading, every insight, every cosmic tool — all built around your exact natal chart, not generic sun sign content. YOUR BIRTH CHART, PRECISELY CALCULATED Powered by Meeus Astronomical Algorithms running locally on your device — the same precision as professional astrology software. Interactive natal wheel with all 10 planets, aspects, house placements, and tap-to-explore planet details. Placidus house system. No internet required for calculations. YOUR DAILY COSMIC COMMAND CENTER A full dashboard showing your cosmic energy, today's reading, current moon phase, and your Sun, Moon, and Rising sign combination. Daily, Weekly, and Monthly horoscopes across 7 life domains — Overview, Love, Career, Health, and more. THE 13 SACRED MOONS Track all 13 named lunar cycles through the year. Each moon carries a unique theme, personal affirmation, and progress tracker. Follow nature's true rhythm and align your intentions with the cosmos. COSMIC EMPIRE Reveal your Galactic Codex origin story — a personalized cosmic narrative built from your natal chart. Complete daily Self-Reflection Rituals to connect your inner world to what's moving in the cosmos. COSMIC CLOCK See time through an astrological lens. Get your daily Cosmic Haiku, Divine Affirmation, and Current Cosmic Energy description — updated in real time. AI COSMIC GUIDANCE A built-in AI assistant for real-time chart interpretation, transit explanations, and personalized cosmic guidance — available anytime inside the app. COMPATIBILITY & SYNASTRY Compare any two charts for full synastry analysis, composite chart generation, and relationship pattern insights. WEAR YOUR STARS Shop the StarFlow merch store — cosmic apparel and accessories designed for the community, built right into the app. StarFlow is built for the serious cosmic explorer. Your chart is unique. Your app should be too.

About

Hello Sun

Explore your unique birth chart and understand yourself better with personalized insights. Discover compatibility with others, find your ideal locations, and receive daily guidance based on your astrological placements.

Highlights
  • Full birth chart analysis
  • Personalized daily readings
  • Compatibility reports
  • Astrocartography insights
  • Ask your chart questions
  • Astrology lessons
Features
Read full description

Hello Sun is a self-discovery app that takes your birth chart as seriously as you do. Your chart is so much more than your sun sign. Every planet, every placement, every aspect is a layer of the real you, and Hello Sun reads all of it: your full natal chart, compatibility, astrocartography, and forecasts built on your actual placements. All in plain language, specific to you, never written for everyone born in your month. Whether you have studied astrology for years or are just starting to go deeper, this is the app that finally does your chart justice. WHAT'S FREE FOREVER A lot of astrology apps gate the basics. Hello Sun does it differently. From the moment you sign up, you get: · Your full birth chart, every placement explained in plain language · A daily reading of your mood, your presence, and what to notice today · Every astrology lesson, free now and always · Compatibility with the people in your life, from the ones who matter most to the ones you're just curious about · Your astrocartography, where in the world you come most alive · Three questions a day for the stars, by voice or text This isn't a trial. It's the free version. WHAT'S WAITING FOR YOU YOUR CHART, DECODED Every placement explained so it actually clicks. Your Mercury, Venus, Mars and beyond, described in real language about real patterns. Specific to you, not written for everyone born in your month. PERSONALIZED FORECASTS A daily reading that's truly yours, with deeper weekly, monthly, and yearly readings when you're ready to go further. What's happening in the sky, and what it means for your life and your decisions. ASK YOUR CHART, OUT LOUD Something on your mind? Ask your chart directly, by voice or by text, and get a real answer rooted in your placements. Speak your question and hear the answer back, like having a wise friend on call who actually knows you. FRIENDS AND COMPATIBILITY Ever wonder why you click with some people instantly and clash with others no matter what you do? Hello Sun puts your charts side by side and shows you exactly why. The friendships that feel like home, the romantic connections that run deep, the dynamics that have always confused you. Real synastry, in language that actually makes sense. WHERE YOU BELONG IN THE WORLD Your chart doesn't just tell you who you are. It tells you where you come alive. Some places call to certain people for a reason. Explore where in the world you feel most at home, for love, for work, or for showing up as yourself. YOUR USER MANUAL This is the guide you were never given. How you process emotions, make decisions, recharge, and show up for the people you love. Hello Sun breaks down your patterns in a way that is so specific it will make you laugh, cry, and text it to your best friend all at once. Not a personality type. Not a quiz result. Just you, decoded. LEARN AS YOU GO Go from curious to fluent. Every lesson is free, now and always. Bite-sized, starting with your own chart so everything you learn feels personal from day one. GOING DEEPER WITH PREMIUM When you're ready to go further, Hello Sun Premium unlocks deeper readings, your full week-month-year ahead, unlimited Q&A by voice or text, and unlimited compatibility with fellow Sunnies. $9.99/month or $99/year, with a 7-day free trial. Cancel anytime. Know yourself. Understand each other. Astrology that actually makes sense. Support: support@hellosun.me Privacy Policy: hellosun.space/privacy Terms of Service: hellosun.space/terms

Screenshots

StarFlow4 screens
Hello Sun4 screens

Verdict

The call

The clearest difference is rating: Hello Sun at 4.9 against StarFlow's 1.0. Hello Sun also leads on update cadence (every 10 days vs every 6 months) and ratings volume (22 vs 1). StarFlow's advantage is in-app purchases (none vs 2). On price, ads, monetization model 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. Hello Sun sells 2 in-app purchases, starting at $9.99 per month. StarFlow asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Hello Sun holds the better App Store score, 4.9 against 1.0. That said, the two scores are not equally well evidenced: Hello Sun has 22 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

StarFlow ships an update every 6 months, Hello Sun every 10 days. Both last shipped on October 31, 2026.

Scorecard4 real differences · 6 level
StarFlow versus Hello Sun: the parameters behind the verdict, then further details
ParameterStarFlowHello Sun
PriceFreeFree
Rating1.0 (1 ratings)4.9 (22 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings122 — better
Update frequencyEvery 6 monthsEvery 10 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.115.0 — better
Further details — not scored
Size39 MB23 MB
Age rating17+17+
DeveloperBrandon WalkerHello Sun, Co.

Customer experience

StarFlow

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%

Hello Sun

All ratings18 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews14 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

StarFlow

No in-app purchases

2 purchases

Hello Sun

Subscriptions2
  • Hello Sun Premium Monthly7 Days trial$9.991 Month
  • Hello Sun Premium Annual7 Days trial$59.991 Year

Questions

Is StarFlow free?
StarFlow is free to download, with no in-app purchases.
Is Hello Sun free?
Hello Sun is free to download, with in-app purchases available.
Which has better reviews, StarFlow or Hello Sun?
Hello Sun is rated higher. StarFlow averages 1.0 out of 5 from 1 ratings, while Hello Sun averages 4.9 from 22 ratings.
Do StarFlow or Hello Sun have ads?
Neither StarFlow nor Hello Sun shows ads.
Which is updated more often, StarFlow or Hello Sun?
StarFlow ships an update every 6 months, and Hello Sun every 10 days. Most recently, StarFlow was updated on October 31, 2026 and Hello Sun on October 31, 2026.

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