Comparison

Be I/O vs Lanternly

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

Head to head
About

Be I/O

Features
Read full description

Be I/O makes sense of air quality in terms that apply to you. Rather than broad categories like "moderate" or "unhealthy," Be I/O estimates how much PM2.5 you'd actually take in, right now, doing what you're planning to do. Choose an activity — a 30-minute walk, or a 75-minute hard run — and see whether to Be Inside or Outside for it, and how much of your estimated daily intake it would account for. Be I/O works out your ventilation rate from optional health details: age and weight, or your resting and maximum heart rate, or — for the fitness nerds — the litres per minute you breathe in each heart rate zone, straight from a metabolic test. Connect to your own PurpleAir or AirGradient sensors over your local network for near-real-time readings, free and without an account. No sensor of your own? Subscribe to use the public monitor nearest you. A subscription adds: * Air quality from the sensor nearest you, wherever you are * What each run, ride and walk of the last 30 days cost you, from Apple Health * A week of sensor history (for public sensors) * The Apple Watch app: current air quality, your estimated breathing rate and PM2.5 intake, each optionally shown against a baseline you choose * A PM2.5 gauge Apple Watch complication Note: Be I/O estimates are fitted to adults; the app says so when it knows you're younger. Privacy Policy: https://be-io.app/privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Lanternly

Features
Read full description

Lanternly is a journal that keeps your words to yourself. Write, speak, or drop in a photo. Everything stays on your iPhone, iPad, Mac and Apple Watch, synced through your own iCloud. No account, no ads, no analytics on what you write. MEET LUNA Luna is a small cat who lives in your journal. She asks a question when you open the app, notices when you have been circling the same thing for a while, and answers when you want to talk. She reflects rather than judges, never hands out advice you did not ask for, and is honest that she is not a person. Luna works entirely on your device. On iPhone, iPad and Mac with Apple Intelligence she speaks in her own words. On other devices she draws from a curated bank of questions and replies, and the app tells you so plainly. WRITE THE WAY YOU THINK • Text, voice notes, photos, mood, tags, location and weather • Autosave, no save button, nothing lost • Daily journal, gratitude journal, dream journal, plus your own custom journals • Calendar, search by words and by meaning, "A year ago" flashbacks • A letter to yourself, sealed until the date you choose PRACTICES • Affirmations in your own voice, with gentle morning and evening reminders • Wishes: a first step, and one day "it came true" or letting go • If time were short: what truly matters, and where to start now THREE PATHS, ONE JOURNAL Feelings: a balance wheel, your values, "See it differently" for tangled thoughts, a weekly overview. Growth: habits without punishment, goals with steps, a weekly rhythm instead of a score. Decisions: a decision journal with a review date, net worth over time, runway and compound-interest calculators. Every path is open. Two tools in each are free forever: gratitude and a breathing pause, a step for today and habits, the decision journal and money tags. Luna keeps one memory of you across all of them. PRIVATE BY DESIGN • Everything is processed on your device • Sync through your own iCloud (end-to-end encrypted when Advanced Data Protection is on) • Face ID / Touch ID lock • The memory Luna keeps about you is visible, editable and deletable • Export everything, entries and every tool, as text, JSON, PDF or EPUB at any time, no lock-in • Import your Day One archive with dates, photos, locations and weather FREE, PROPERLY Journals, unlimited entries, Luna, mood, voice notes, two tools in every path, the stress check-in, your first wish and first "If time were short" list, holiday outfits for Luna, search, sync, export and import are free. No "days in a row" pressure, no guilt notifications. LANTERNLY+ For those who want the whole toolbox and depth over time: every tool in all three paths, affirmations in your own voice, unlimited wishes and lists, voice notes turned into text on device, writing for past days, unlimited custom journals, monthly reviews with Luna's notes, unlimited goals with habit confirmation from Apple Health, the deep decision review, six premium themes and seasonal outfits for Luna, Luna stickers for iMessage, and printing your journal as a book (PDF and EPUB). Lanternly+ is a monthly, six-month or yearly subscription with a 7-day free trial. Payment is charged to your Apple account at confirmation of purchase. The subscription renews automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel it in your Apple account settings. ALSO ON Apple Watch: mood, the stress check-in, habits and your phrase for the day on your wrist and in complications. Mac: a native app with a menu-bar entry. Home Screen widgets. iMessage stickers. If you are going through a hard time, Luna will not pretend to be a professional. She will point you to real help and stay with you. _____________________ LICENSED APPLICATION END USER LICENSE AGREEMENT - https://www.apple.com/legal/macapps/stdeula/ Privacy Policy - https://dodecaidr.pro/en/projects/lanternly/privacy-policy/ Terms and Conditions - https://dodecaidr.pro/en/projects/lanternly/terms-of-service/

Screenshots

Be I/O4 screens
Lanternly4 screens

Verdict

The call

The clearest difference is update cadence: Be I/O at every 3 days against Lanternly's fortnightly. On price, ads, in-app purchases and device support there is nothing between them.

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

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Be I/O sells 1 in-app purchase, starting at $1.99 per year and Lanternly sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Be I/O ships an update every 3 days, Lanternly fortnightly. The most recent releases landed on October 31, 2026 and October 24, 2026 respectively.

Scorecard1 real difference Ā· 5 level
Be I/O versus Lanternly: the parameters behind the verdict, then further details
ParameterBe I/OLanternly
PriceFreeFree
Update frequencyEvery 3 days — betterFortnightly
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, Apple WatchiPhone, iPad, Mac, Apple Watch — better
Requires iOS17.0 — better18.0
Further details — not scored
Size11 MB37 MB
Age rating4+4+
DeveloperPeter CompernolleIlya Lobkov

In-app purchases

1 purchases

Be I/O

Subscriptions1
  • Annual Subscription14 Days trial$1.991 Year
3 purchases

Lanternly

Subscriptions3
  • Monthly7 Days trial$4.991 Month
  • 6 Months7 Days trial$17.996 Months
  • Yearly7 Days trial$29.991 Year

Questions

Is Be I/O free?
Be I/O is free to download, with in-app purchases available.
Is Lanternly free?
Lanternly is free to download, with in-app purchases available.
Do Be I/O or Lanternly have ads?
Neither Be I/O nor Lanternly shows ads.
Which is updated more often, Be I/O or Lanternly?
Be I/O ships an update every 3 days, and Lanternly fortnightly. Most recently, Be I/O was updated on October 31, 2026 and Lanternly on October 24, 2026.

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