Comparison

Sky Thoughts vs Luna Journey

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

Head to head
About

Sky Thoughts

A private journaling app for reflection and emotional release. Secure your entries with Face ID or PIN and organize them with custom tags. Optional AI analysis helps you understand your thoughts.

Highlights
  • Private journaling
  • No sign-up or tracking
  • Device-based data storage
  • Face ID/PIN protection
  • AI thought analysis
  • Emotion tagging and organization
Features
Read full description

Sky Thoughts is your private space to write freely, reflect, and release what’s on your mind. No sign-up. No tracking. All your data stays on your device unless you use AI analysis - in that case, the thought to analyze is anonymously sent momentarily to AI servers. Protect sensitive thoughts with Face ID or PIN. Analyze your thoughts with AI analysis. Tag and organize your emotions your way. Feel lighter — one thought at a time.

About

Luna Journey

Features
Read full description

Your journal should be the most private place you have. Luna Journey keeps it that way. Everything your entries, AI insights, mood detection runs entirely on your device. No servers. No accounts. No cloud sync. No one reads your words but you and Luna, your on-device AI journaling companion. PRIVATE BY DESIGN, NOT BY PROMISE Most journaling apps send your most personal thoughts to remote servers for processing. Luna Journey is different. It uses Apple's on-device intelligence to power every feature Your words never leave your phone not for AI processing, not for analytics, not for anything. There is no backend. There are no servers. We couldn't read your journal even if we wanted to. HOW IT WORKS Write openly about anything on your mind. As you type, Luna your private AI companion responds in real-time with thoughtful reflections and emotional support. It detects your mood naturally from your writing, no manual tagging needed. When you save an entry, Luna generates three personalized insights: • A summary that captures the heart of what you wrote • An emotional tone reading across 9 states from joyful to anxious • A reflection question to sit with and deepen your self-awareness All of this happens instantly, on your device, using Apple Intelligence. KEY FEATURES • On-Device AI — Powered by Apple's FoundationModels framework. Zero network calls. Zero data collection • Real-Time Companion — Luna reads along as you write and offers gentle, contextual responses • Mood Detection — Automatic recognition across 9 emotional states without manual input • Personal Insights — Every saved entry receives a summary, tone analysis, and reflection question • Writing Streaks — Build consistency with daily streak tracking • Dark Mode — Warm candlelight aesthetic for evening journaling • Beautiful & Calm — Frosted glass cards, spring animations, and a serif-first design system • No Accounts — No sign-up, no email, no password. Open the app and start writing • No Subscriptions — Pay once. No ads, no trials, no paywalls YOUR DATA POLICY Luna Journey stores your entries in Apple's SwiftData framework on your device. We have no servers, no analytics, no crash reporting, and no third-party SDKs. We collect exactly zero data. Your privacy isn't a feature it's the architecture. BUILT FOR DAILY REFLECTION Journaling is one of the most effective practices for emotional clarity and mental wellbeing. Luna Journey removes the friction of getting started and gives you something back not just storage, but understanding. Privately. Your journey starts with a single word.

Screenshots

Sky Thoughts4 screens
Luna Journey4 screens

Verdict

The call

Sky Thoughts and Luna Journey are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Neither carries in-app purchases, so what you see is what you pay.

ScorecardNo meaningful differences
Sky Thoughts versus Luna Journey: the parameters behind the verdict, then further details
ParameterSky ThoughtsLuna Journey
PriceFreeFree
Rating1.0 (1 ratings) — better—
Number of ratings1 — better—
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.6 — better17.0
Further details — not scored
Size1 MB4 MB
Age rating4+4+
DeveloperRAPHAEL LEGERJomar Montuya

In-app purchases

None

Sky Thoughts

No in-app purchases

None

Luna Journey

No in-app purchases

Questions

Is Sky Thoughts free?
Sky Thoughts is free to download, with no in-app purchases.
Is Luna Journey free?
Luna Journey is free to download, with no in-app purchases.
Do Sky Thoughts or Luna Journey have ads?
Neither Sky Thoughts nor Luna Journey shows ads.

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