Comparison

FirstSeed Calendar vs Atrigam

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

Head to head
About

FirstSeed Calendar

A powerful scheduling app that manages both events and reminders. It offers innovative calendar views, interactive widgets for various iOS versions, and seamless syncing with Apple's Calendar and Reminders apps. An optional paid upgrade unlocks advanced features like natural language event processing and drag-and-drop functionality.

Highlights
  • Interactive and lock-screen widgets
  • Full-featured month, week, and list views
  • Event and reminder management
  • Natural language event processing (paid)
  • Drag & drop event manipulation (paid)
  • Apple Watch support
  • Syncs with Apple Calendar and Reminders
Features
Read full description

FirstSeed Calendar keeps your events and reminders in one place. It’s fast, flexible, and built so you can handle most tasks with one hand. Features: - Month view that handles everyday tasks with one hand - Week view that fits the whole week on one screen, with no vertical scrolling - Day, list, and year views, including a list view laid out like a paper planner - Events and reminders together in one calendar - Move or duplicate events to multiple dates at once - Respond to invitations right from the app - Daily Summary notifications for today’s or tomorrow’s events - Home Screen, Lock Screen, StandBy, and interactive widgets, including a timeline widget - Control Center controls - Apple Watch app with complications - Dark mode, custom themes, and colors for weekends and holidays - Designed for Liquid Glass, with clear and tinted icons and widgets Pro: One-Time Purchase, No Subscription: - Sync directly with Google Calendar, including per-event colors - Trash: recover deleted events and reminders for up to 30 days - Automatic backups of your calendar data - Quick Event: create events by typing naturally, like “Lunch with Bob at noon tomorrow” - Full-screen alarms for events you can’t miss - Weather forecasts in your calendar - Week numbers, time zones, and event history - Drag and drop to reschedule events - Templates for events you create often - Calendar sets to show or hide groups of calendars with one tap - Import and export ICS files - Customize the Apple Watch app - Alternate app icons - No ads Sync: FirstSeed Calendar works with Apple’s Calendar and Reminders apps, so your events and reminders stay in sync across all your devices through iCloud, Google, Exchange, and any other accounts you’ve added in Settings.

About

Atrigam

Read full description

The Atrigam app gives people access to Atrigam's revolutionary collaboration platform. It allows people, machines and devices collaborate smarter using dedicated events and information related to a specific context.

Screenshots

FirstSeed Calendar4 screens
Atrigam4 screens

Verdict

The call

The clearest difference is in-app purchases: Atrigam at none against FirstSeed Calendar's 2. Atrigam also leads on ads (none vs shown) and iOS requirement (16.2 vs 26.0). FirstSeed Calendar's advantage is update cadence (every 8 days vs every 2 months). On price 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. FirstSeed Calendar sells 2 in-app purchases, starting at $2.99 per month. Atrigam asks for nothing beyond the download.

UpkeepUpdate frequency

FirstSeed Calendar ships an update every 8 days, Atrigam every 2 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard4 real differences · 6 level
FirstSeed Calendar versus Atrigam: the parameters behind the verdict, then further details
ParameterFirstSeed CalendarAtrigam
PriceFreeFree
Rating4.7 (339 ratings) — better—
Positive reviews80.5% of reviews—
Number of ratings339 — better—
Update frequencyEvery 8 days — betterEvery 2 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS26.016.2 — better
Further details — not scored
Size67 MB28 MB
Age rating4+4+
DeveloperFirstSeed IncAtrigam GmbH

In-app purchases

2 purchases

FirstSeed Calendar

Subscriptions1
  • Monthly Donation$2.991 Month
One-time1
  • Pro Version$9.99
None

Atrigam

No in-app purchases

Questions

Is FirstSeed Calendar free?
FirstSeed Calendar is free to download, with in-app purchases available.
Is Atrigam free?
Atrigam is free to download, with no in-app purchases.
Do FirstSeed Calendar or Atrigam have ads?
FirstSeed Calendar shows ads; Atrigam does not.
Which is updated more often, FirstSeed Calendar or Atrigam?
FirstSeed Calendar ships an update every 8 days, and Atrigam every 2 months. Most recently, FirstSeed Calendar was updated on November 2, 2026 and Atrigam on November 3, 2026.

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