Cloud Calendars Icon Cloud Calendars · Arte Soft
Protocol Benchmark

Unified 4-Protocol Calendar Matrix on iOS 18 & iPadOS 18

Side-by-side protocol analysis for running Apple iCloud, Google Calendar, Microsoft 365 Exchange, and self-hosted CalDAV simultaneously.

Unify iCloud, Google, Microsoft Exchange & CalDAV on iPhone, iPad & Apple Watch

Direct device-to-provider sync with zero cloud relay servers, live Apple WeatherKit hourly overlays, and interactive iOS 18 widgets.

Get Cloud Calendars on App Store

Cloud Calendars merges all four major calendar protocols into a single high-contrast timeline with instant conflict detection and hourly Apple WeatherKit forecasts.

Visual Workspace & Live WeatherKit Overlay

Cloud Calendars Single-Day Timeline with Conflict Detection & Weather Bar
Cloud Calendars Single-Day Timeline with Conflict Detection & Weather Bar
Cloud Calendars Apple WeatherKit Hourly Temperature & Condition Overlay
Cloud Calendars Apple WeatherKit Hourly Temperature & Condition Overlay

Frequently Asked Technical Questions

Can I toggle individual calendars per protocol?

Yes, every calendar collection across iCloud, Google, Exchange, and CalDAV can be toggled and color-coded independently.

Ready to deploy a zero-relay multi-account calendar on iOS & iPadOS?

Install Cloud Calendars: Sync & Widget (App Store ID 6744690319) and connect your accounts in under 60 seconds.

Download Free on App Store

At a Glance: 2026 Feature & Pricing Comparison

PlatformsiPhone and iPad, with a companion browser studio.
FeaturesUnified iCloud/device, Google and Microsoft calendar views; hourly weather, widgets and optional personal cloud sharing/sync. Google integration is included free; Microsoft requires Premium according to the current listing.
PriceFree download with optional paid subscription tiers. Verify current local prices and tier entitlements in the app.
PrivacyCalendar account connections, optional Arte Soft cloud features, weather/location and advertising involve different providers. This is not an entirely offline or exclusively on-device service.
Compare your optionsCompare account sync direction, sharing permissions, weather context and widgets against your existing calendar. Standard Apple and provider calendars may already meet simple scheduling needs.
Is Cloud Calendars free to download?

Free download with optional paid subscription tiers. Verify current local prices and tier entitlements in the app.