Comparison

Astral Book vs Leafy

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

Head to head
About

Astral Book

Features
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The easiest way to log your stargazing sessions. Astral Book is an astronomy observation journal for amateur astronomers. After each session at the eyepiece, record your targets, seeing, transparency, equipment, and photos — all in one place. No internet needed, even at remote dark sky sites. 【What You Can Do】 ▷ Observation Log Record object name, object type (planet, moon, star, nebula, cluster, comet, meteor & more), date/time, location, seeing (1–5), transparency (1–5), notes, and photos. Search and filter past sessions by object, notes, date, location, or equipment. ▷ Calendar View See which nights you observed on a monthly calendar. Swipe to browse months and revisit your history at a glance. ▷ Target List Add objects you want to observe. Log a session for any target and it's automatically marked as done and removed from the list. ▷ Messier Catalog Browse all 110 Messier objects. Observed objects are automatically checked off so you can track your Messier completion progress. ▷ Same Object History From any log entry, quickly see every time you've observed the same object — when, where, and under what conditions. ▷ Observation Sites Save your favorite dark-sky sites with Bortle scale ratings. ▷ Night Mode Switch to a red-tinted theme that protects dark adaptation while you're at the eyepiece. ▷ Observation Card Sharing Generate a visual observation card and share it via social media or messaging. ▷ CSV / ZIP Export & Import (Free) Export observations as CSV. Create a ZIP backup with photos, sites, equipment, and wish list. Restore from a previously exported CSV or ZIP. ▷ PDF Export (Free) Export your observation journal as a PDF report to share or print. ▷ Equipment Management (Pro) Register your telescopes, eyepieces, and cameras, then link them to your logs. One place to see what you used to observe what. ▷ Saved Gear Sets (Pro) Save favorite telescope + eyepiece + camera combos as templates so logging a session takes one tap. ▷ Observation Statistics Charts for total sessions, unique object types, monthly session counts, and sessions by site — see your observing patterns over time. 【Who It's For】 ・Observers tired of notebooks or notes apps with no search or statistics ・Visual observers who want to properly track seeing and transparency ・Observers who want to review results by telescope or binoculars ・Messier catalog chasers tracking their progress ・Anyone keeping a "next target" wish list ・Astronomy club members sharing observation reports ・Observers at multiple sites from backyard patio to remote dark sky 【Your Data Stays With You】 All data is stored locally on your iPhone/iPad. Nothing is sent to the cloud or any external server. No account required. No risk of losing years of records if a service shuts down. Use ZIP backup to move data when changing devices. 【Fully Offline】 Works completely without internet at remote dark-sky sites. No connection required (except during in-app purchase processing). 【Pricing】 ・Free: up to 20 observation logs (includes CSV / ZIP / PDF export & import) ・Astral Book Pro (one-time purchase): regional pricing — unlimited logs + equipment management + gear sets One purchase. No subscription. No recurring fees. ——— Developer: Kore Apps Support: support@kore-apps.com ———

About

Leafy

Features
Read full description

Your plants deserve a home. Give them a tiny pixel one. Leafy turns a photo of your plant into a pixel plant and a photo of your room into a pixel room. Put the plants wherever you like, drag them from room to room, and let Leafy remind you when it's time to water. TAKE A PHOTO, GET A PIXEL PLANT Point the camera at your monstera, your sad little cactus, the fern you keep forgetting. Leafy cuts the plant out of the photo and redraws it as pixel art, right on your device. No upload, no waiting. YOUR OWN ROOM, IN PIXELS Photograph a corner of your home and Leafy redraws it: wall, floor, window, your couch, your shelf, your lamp — in the colours of the photo. Then rearrange everything in the room editor until it feels right. A HOME THAT FOLLOWS THE DAY The window shows the real sky. Morning light, blue afternoon, dusk, and at night the lamps glow while the rest of the room falls asleep. Nothing to set up — it just follows your clock. WATERING, WITHOUT THE GUILT Set an interval per plant. Leafy sends one gentle reminder on the day, tips the watering can, and little hearts float up. Forget for too long and the plant droops — until you make it up to it. QUIET BY DESIGN No account. No cloud. No ads, no tracking, no analytics. Everything — your rooms, your plants, your photos — stays on your device and works offline. Photos are turned into pixels locally and never stored. ONE-TIME PURCHASE Try it with one room and three plants. Unlock everything once, for 5.99 €. No subscription, ever. Available in 14 languages.

Screenshots

Astral Book4 screens
Leafy4 screens

Verdict

The call

The clearest difference is device support: Astral Book at 3 against Leafy's 1. On price, ads, in-app purchases and iOS requirement 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. Astral Book sells 1 one-off in-app purchase and Leafy sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference · 5 level
Astral Book versus Leafy: the parameters behind the verdict, then further details
ParameterAstral BookLeafy
PriceFreeFree
Update frequencyWeekly—
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better16.4
Further details — not scored
Size55 MB104 MB
Age rating4+4+
Developerkazuki korenorifoodsoption UG (haftungsbeschraenkt)

In-app purchases

1 purchases

Astral Book

One-time1
  • Astral Book Pro$5.99
1 purchases

Leafy

One-time1
  • Unlock everything$4.99

Questions

Is Astral Book free?
Astral Book is free to download, with in-app purchases available.
Is Leafy free?
Leafy is free to download, with in-app purchases available.
Do Astral Book or Leafy have ads?
Neither Astral Book nor Leafy shows ads.

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