Comparison

Calendars vs 轻投OA

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

Head to head
About

Calendars

This app combines calendar, task management, and habit tracking to boost productivity and organization. It offers seamless syncing across Apple devices and integrates with popular services like Google Calendar. Plan your day, manage tasks, and build routines with customizable views and features.

Highlights
  • Calendar and task management
  • Habit tracking and routine building
  • Cross-device syncing
  • Natural language event creation
  • Integration with Google Calendar and Zoom
  • Customizable views and widgets
Features
Read full description

Calendars by Readdle is the all-in-one calendar, task manager, daily planner, and habit tracker — seamlessly working across all your Apple devices: Mac, iPhone, iPad, and Apple Watch. Plan your day, build better habits, boost productivity, and stay organized with powerful features and smooth sync between all your devices. What you can do with Calendars: • View and manage your calendar with daily, weekly, and monthly views • Create events, set reminders, and never miss important dates • Use the built-in agenda planner to focus on what matters most • Organize your to-do list and manage your tasks with ease • Quickly add events or to-do items using natural language • Build routines and track your habits to stay consistent • Take a guided productivity course to improve time management and focus • Sync across devices with Google Calendar, iCloud, and more • Customize your planner calendar with color coding and widgets • Join Zoom, Google Meet, or GoToMeeting directly from your calendar • Stay in control of your time, wherever you are Whether you're planning a busy workday, building new habits, or working on personal growth, Calendars brings everything together to help you own your time — across all your Apple devices. Privacy Policy: https://readdle.com/calendars/legal/privacy Terms of Service: https://readdle.com/calendars/legal/terms Have questions, comments, or issues? Don’t hesitate to reach out to us at http://readdle.com/contact

About

轻投OA

Features
Read full description

轻投OA一款Saas化OA产品,依赖轻投Saas产品经验,为企业客户提供可配置化的OA系统服务。

Screenshots

Calendars4 screens
轻投OA3 screens

Verdict

The call

The clearest difference is in-app purchases: 轻投OA at none against Calendars's 20. 轻投OA also leads on iOS requirement (9.0 vs 18.2). Calendars's advantage is chart position (#150 vs unranked) and update cadence (weekly vs fortnightly). On price and ads 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. Calendars sells 18 in-app purchases, starting at $3.99 per month. 轻投OA asks for nothing beyond the download.

UpkeepUpdate frequency

Calendars ships an update weekly, 轻投OA fortnightly. The most recent releases landed on November 1, 2026 and October 7, 2026 respectively.

Scorecard5 real differences · 6 level
Calendars versus 轻投OA: the parameters behind the verdict, then further details
ParameterCalendars轻投OA
PriceFreeFree
Rating4.7 (123K ratings) — better—
Positive reviews55.8% of reviews—
Number of ratings123K — better—
Update frequencyWeekly — betterFortnightly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
Best chart rank#150 — better—
DevicesiPhone, iPad, Mac, Apple Watch — betteriPhone, iPod
Requires iOS18.29.0 — better
Further details — not scored
Size413 MB35 MB
Age rating4+4+
DeveloperReaddle Technologies Limited北京飒思软件有限公司

Bugs and requests

Calendars

Reported bugs

3 issues
  • Disappearing events and appointments
  • Upgrade process causing data loss
  • Freezing and crashing on certain devices

Requested features

5 requests
  • Recurring events for free users
  • Customizable widgets and app icons
  • Ability to archive/restore past events
  • Improved Apple Watch integration
  • Shared calendars and family management

轻投OA

Not enough reviews yet to summarise bugs or requests.

In-app purchases

18 purchases

Calendars

Subscriptions9
  • Calendars PRO 1 Month$3.991 Month
  • Calendars by Readdle: Interesting Calendars1 Month trial$3.991 Year
  • Calendars PRO 1 Month7 Days trial$3.991 Month
Show 6 more
  • Calendars PRO 1 Year3 Months trial$19.991 Year
  • Calendars PRO 1 Year7 Days trial2 variants$19.991 Year
  • Calendars PRO 1 Year1 Year trial$19.991 Year
  • Calendars PRO 1 Year14 Days trial$19.991 Year
  • Calendars PRO 1 Year7 Days trial$21.991 Year
  • Calendars PRO 1 Year7 Days trial$29.991 Year
One-time9
  • Calendars PRO LifetimeFree
  • Invites & Attendees Upgrade$1.99
  • Smart Input Upgrade$1.99
Show 6 more
  • Full Upgrade$4.99
  • Interesting Calendars$5.99
  • My schedule planner, Organizer$6.99
  • Full Pack$12.99
  • Reminders & Calendars$19.99
  • Recurring Events$31.99
None

轻投OA

No in-app purchases

Questions

Is Calendars free?
Calendars is free to download, with in-app purchases available.
Is 轻投OA free?
轻投OA is free to download, with no in-app purchases.
Do Calendars or 轻投OA have ads?
Neither Calendars nor 轻投OA shows ads.
Which is updated more often, Calendars or 轻投OA?
Calendars ships an update weekly, and 轻投OA fortnightly. Most recently, Calendars was updated on November 1, 2026 and 轻投OA on October 7, 2026.

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