Cloud Calendars vs Duo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cloud Calendars
Consolidate your Google, iCloud, and Microsoft calendars with integrated weather forecasts. Plan your day efficiently with customizable widgets and multiple calendar views.
- Syncs Google, iCloud, and Microsoft calendars
- Integrated weather forecasts
- Customizable home screen widgets
- Multiple calendar views (Day, Week, Month, Year, List)
- Drag-and-drop event editing
- Create Google Meet and Microsoft Teams links
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Plan Your Day with Calendar + Weather Together Cloud Calendars combines your calendars and weather into one beautifully organized planning experience. Manage iCloud, Google Calendar, and Microsoft calendars in a single app while seeing forecasts directly inside your schedule, widgets, and planning views. Stay ahead of meetings, travel, school pickups, outdoor activities, and busy days with calendar views designed for faster planning. HOME SCREEN WIDGETS Add beautiful widgets that combine: • Calendar events • Weather forecasts • Upcoming schedule • Moon phase and conditions • Wind and temperature • Daily agenda overview Choose from multiple widget styles to see your day directly from the Home Screen. WHY CLOUD CALENDARS • View iCloud, Google Calendar, and Microsoft calendars together • Plan with built-in weather forecasts • Use beautiful Home Screen widgets • Drag, move, and resize events naturally • Create Google Meet and Microsoft Teams links • Switch between Day, Week, Month, Year, and List views • Manage work and personal calendars in one place FEATURES All Your Calendars Together Connect and manage calendars from iCloud, Google Calendar, and Microsoft in one clean, color-coded experience. Weather Built Into Your Calendar See hourly and daily forecasts directly inside your planning workflow, including temperature, conditions, moon phase, wind, and weather icons. Calendar + Weather Widgets View your schedule and weather instantly from customizable Home Screen widgets. Multiple Calendar Views Choose Day, Week, Month, Year, or List view depending on how you plan your time. Easy Event Editing Tap, drag, and resize events directly on the calendar for fast and natural scheduling. Dedicated Weather View Explore detailed forecasts with hourly conditions and useful planning insights. Create Events from Forecasts Tap a forecast hour to instantly create a new event with the selected time. Built-In Meeting Links Quickly add Google Meet and Microsoft Teams links to events. PERFECT FOR • Work and personal calendar management • Weather-aware planning • Outdoor activities and travel • Busy schedules and family planning • Google Calendar and iCloud users • Microsoft calendar users Try Cloud Calendars and make every day easier to plan. SUBSCRIPTION INFORMATION Cloud Calendars offers auto-renewable subscriptions. Free Plan • Google Calendar sync • Multiple calendar views • Weather features • Widgets • Google Meet support Payment will be charged to your Apple ID account at confirmation of purchase. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours before the end of the current period. You can manage and cancel subscriptions in your App Store account settings. Privacy Policy: https://www.cloud-calendars.com/privacy-policy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Duo
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TwoUp puts two things on one iPhone screen at the same time: a web page, a PDF and a plain-text note, in any combination you need. Read a PDF above and write your notes below. Keep a reference page open beside the document you are working through. Both panes stay live — scroll one and the other keeps its place. SAVE THE PAIR A pair of panes is a workspace. Name it, and it reopens exactly as you left it: the same document, the same page, the same note text, the same divider position. MADE FOR READING Drag the divider to give either pane more room, or send one pane full screen and back. Turn the phone sideways and a PDF opens as a two-page spread, like a book, with your note still beside it. YOUR OWN SITES — WITH PRO Save the pages you keep coming back to, with their titles and icons, and open one into a pane without typing an address. IT ALL STAYS ON YOUR PHONE No account, no sign-in, and no server of ours. Your notes, your documents and your saved sites never leave the device — there is nowhere for them to go. The app asks for no permissions at all: no camera, no photos, no contacts, no location. The app sends anonymous usage statistics so we can see which screens people reach and where they get stuck. None of your content is ever included — not your notes, not the addresses you open. You can switch it off in Menu > App > Share usage data. TwoUp Pro adds two things: keeping more than one saved workspace, and saving your own sites as shortcuts. Terms of Use: https://nikolaykutsbr.github.io/twoup-support/terms.html Privacy Policy: https://nikolaykutsbr.github.io/twoup-support/privacy-policy.html
Screenshots
Verdict
The clearest difference is update cadence: Duo at every 2 days against Cloud Calendars's every 3 weeks. On price, ads, in-app purchases 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
Both are free to download. Cloud Calendars sells 4 in-app purchases, starting at $0.49 per month and Duo sells 2 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Cloud Calendars ships an update every 3 weeks, Duo every 2 days. The most recent releases landed on October 7, 2026 and September 30, 2026 respectively.
| Parameter | Cloud Calendars | Duo |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (12 ratings) — better | — |
| Number of ratings | 12 — better | — |
| Update frequency | Every 3 weeks | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 18.0 | 18.0 |
| Further details — not scored | ||
| Size | 47 MB | 4 MB |
| Age rating | 4+ | 17+ |
| Developer | Arte Soft Ltd | Mikalai Kuts |
In-app purchases
Cloud Calendars
- Advanced Monthly$0.491 Month
- Advanced Yearly$4.991 Year
- Premium Monthly$4.991 Month
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- Premium Yearly$49.991 Year
Duo
- TwoUp Plus Week3 Days trial$6.997 Days
- TwoUP Plus Year$59.991 Year









