Comparison

Castora vs Annidiem

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

Head to head
About

Castora

Features
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Castora โ€” The Ultimate diecast Collection Tracker Every collector knows the feeling: standing in the aisle, phone out, trying to remember if you already have this casting. Castora ends the guesswork. Track your diecast collection and wishlist, browse the complete catalog, and watch your collection come to life with stats, series progress, and daily discoveries โ€” all built for collectors, by a collector. COLLECTION & WISHLIST โ€ข Log every car you own with year, series, and Treasure Hunt / Super Treasure Hunt status โ€ข Keep a wishlist of cars you're hunting for โ€ข Add your own photos. โ€ข Filter and sort by year, series, TH/STH status, and more FULL CATALOG โ€ข Browse the entire diecast catalog, organized by year and series โ€ข See at a glance which cars you own, want, or haven't discovered yet โ€ข "Show Primary Variants only" cuts through color-variant clutter STATS THAT MOTIVATE โ€ข Track your overall catalog completion percentage โ€ข Drill into any year to see TH/STH counts and series breakdowns โ€ข Get a celebration the moment you complete a series HOME DASHBOARD โ€ข Catalog progress at a glance โ€ข Recently added cars, right where you left off โ€ข "Almost Complete" shelf surfaces the series you're closest to finishing โ€ข Daily "Discover" picks introduce cars you don't own yet SYNC & BACKUP โ€ข iCloud sync keeps your collection and settings up to date across all your devices MADE FOR COLLECTORS Castora was built by a diecast collector who wanted a better way to track a growing collection โ€” clean, fast, and focused on what matters: your cars. Start tracking today and turn your collection into a story worth showing off.

About

Annidiem

This app helps you track and remember important dates beyond standard calendars. It allows you to attach photos, voice memos, and thoughts to specific days, creating a personal diary for each event. You can archive past events while keeping their memories accessible.

Highlights
  • Personalized day records with media
  • Archiving of past events
  • Countdown timers for future dates
  • On-this-day historical recall
  • Dynamic Island and widget support
  • Apple Watch integration
  • Calendar import/export
Features
Read full description

Your calendar manages your schedule. Annidiem remembers the days for you. If you think you're a bit ahead of the curve, this one's for you. Birthdays, anniversaries, exams, trips, moving into a new home, a family reunion โ€” the days that matter deserve better than a crowded calendar. Some are still ahead of you. Some already happened. Either way, they deserve somewhere to stay. Flip the bottom-right corner of a card and it turns over into that day's own record. You don't have to wait for the day itself โ€” write while you're looking forward to it, while you miss it, or the moment it crosses your mind: photos, thoughts, voice memos, short videos, each one stamped with the place and weather of that moment. No folders to create, no "where should this photo go" โ€” it belongs to a day, so it stays with that day. If you remember which day it was, you'll find it again. And when the same day comes round again, every year keeps its own: this year never mixes with last. When a day is no longer in focus, put it away โ€” not throw it out. It leaves your home screen and stops reminding you, while the diary and photos stay, ready to bring back. Life gets simpler. The memories don't have to. - TALK TO THIS DAY โ€” flip a card over for that day's own record; write whenever it comes to you - ARCHIVE โ€” put days that no longer need your attention away, without deleting anything - CARD WALL โ€” big countdown numbers for every day that matters - TICKING MOMENTS โ€” live days/hours/minutes/seconds; past days keep counting up: 1000 days together, 90 days smoke-free, day 300 of the project - WEEK & DAY OF YEAR โ€” which week and day of the year today is, at a glance - PHOTO COVERS โ€” pick a photo for a date and the card becomes its face - ON THIS DAY โ€” the days that happened on today's date in past years surface on their own - DYNAMIC ISLAND โ€” pin any day to your Dynamic Island - WIDGETS โ€” gradient cards, Lock Screen widgets, and a large widget that shows your next five days - ERA OF DAYS โ€” one 3D timeline for all your days: days with photos stand along the road, tap one to fly in - APPLE WATCH SYNC โ€” a glance at your wrist: watch app and watch face complications, updated from your iPhone - TAKE A BREATHER โ€” the screen dims, and the fireworks begin - WORTH SHARING โ€” five share card styles: gradient, minimal, poster, midnight, photo - ANY RHYTHM โ€” daily, weekly, monthly, or an interval you set yourself; paydays and bill days stay in step - FIND ANY DAY โ€” search titles, notes, even "August"; filter to this month, the next 30 days, or what's already past - ASK SIRI โ€” "how many days until New Year?" works, and so do Shortcuts and system search - REMINDERS YOUR WAY โ€” the day itself, or 1/3/7/14/30 days ahead, at a time you choose - TYPE DAYS, GET DATES โ€” enter "100 days" and the date computes itself - FACE ID LOCK โ€” auto-lock in background; some days are yours alone - CALENDAR BRIDGE โ€” import from system Calendar; export .ics/JSON to iCloud Drive - ICLOUD SYNC โ€” sign in to iCloud and every device stays in sync - DATE CALCULATOR โ€” days from birth to today, or today to payday; days between dates, business days, and more - ON-DEVICE AI BLESSINGS โ€” Apple Intelligence writes personalized blessings, fully offline (iPhone 15 Pro or later) One-time purchase ยท No subscription ยท No ads ยท Collects no data โ€” your data stays on your device and in your own private iCloud database, and everything works offline.

Screenshots

Castora4 screens
Annidiem4 screens

Verdict

The call

The clearest difference is update cadence: Castora at daily against Annidiem's every 9 days. Annidiem's advantage is device support (3 vs 1) and iOS requirement (18.0 vs 26.0). On price, ads and in-app purchases there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Castora ships an update daily, Annidiem every 9 days. The most recent releases landed on October 29, 2026 and October 31, 2026 respectively.

Scorecard3 real differences ยท 5 level
Castora versus Annidiem: the parameters behind the verdict, then further details
ParameterCastoraAnnidiem
PriceFreeFree
Positive reviewsโ€”100.0% of reviews
Update frequencyDaily โ€” betterEvery 9 days
AdsNoNo
In-app purchasesNoNo
Monetizationโ€”Free
DevicesiPhoneiPhone, iPad, Apple Watch โ€” better
Requires iOS26.018.0 โ€” better
Further details โ€” not scored
Size7 MB12 MB
Age rating4+4+
DeveloperSaket KumarHaiguang Yin

In-app purchases

None

Castora

No in-app purchases

None

Annidiem

No in-app purchases

Questions

Is Castora free?
Castora is free to download, with no in-app purchases.
Is Annidiem free?
Annidiem is free to download, with no in-app purchases.
Do Castora or Annidiem have ads?
Neither Castora nor Annidiem shows ads.
Which is updated more often, Castora or Annidiem?
Castora ships an update daily, and Annidiem every 9 days. Most recently, Castora was updated on October 29, 2026 and Annidiem on October 31, 2026.

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