Best Free AI Calendar Apps

250+ iOS apps curated and reviewed

4.6 avg rating
20 free apps
Updated August 2026

The best free ai calendar apps on iPhone average 4.6★ across 250+ titles — we've ranked them by what real users actually keep on their phones. Updated August 2026.

Compare top Free AI Calendar Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1AI Calendar - Voice SchedulerAI Calendar - Voice SchedulerFree4.6★ (147)NoNoAug 2026
2Simple Calendar - SimpleCalSimple Calendar - SimpleCalFree4.7★ (16K)YesYesAug 2026
3Notion CalendarNotion CalendarFree4.7★ (7.2K)NoNoAug 2026
4Calendar · Planner & RemindersCalendar · Planner & RemindersFree4.6★ (59K)YesYesAug 2026
5Cortex - Private AI AssistantCortex - Private AI AssistantFreeYesNoMay 2026
6Busy Calendar - AI AssistantBusy Calendar - AI AssistantFree3.0★ (1)NoNoMay 2026
7Floyd: AI-powered CalendarFloyd: AI-powered CalendarFreeNoYesAug 2026
8Otto: AI Calendar & PlannerOtto: AI Calendar & PlannerFreeNoYesAug 2026

Top Picks for Free AI Calendar

AI Calendar - Voice Scheduler#1

AI Calendar - Voice Scheduler by OrangeFish

One sentence to add schedule
Editor's Choice
🌟 Lifestyle
4.6(147 ratings)
Free
AI Calendar - Voice Scheduler screenshot 1
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AI Calendar - Voice Scheduler screenshot 3
AI Calendar - Voice Scheduler screenshot 4

Effortlessly add events to your calendar using natural language. This app offers a simple, desk-calendar-like monthly view and integrates AI for scheduling, answering questions, and providing reminders. It supports multiple languages and is free to use without registration.

Simple Calendar - SimpleCal#2

Simple Calendar - SimpleCal by Yohei Fujikawa

Tasks & ToDo for your schedule
Strong Contender
📊 Productivity
4.7😊(16K ratings)
FreeAdsIn-App Purchases
Simple Calendar - SimpleCal screenshot 1
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Simple Calendar - SimpleCal screenshot 3
Simple Calendar - SimpleCal screenshot 4
Simple Calendar - SimpleCal screenshot 5
Simple Calendar - SimpleCal screenshot 6

This app offers a straightforward way to manage your schedule, sync events across devices using iCloud or Google Calendar, and stay organized with reminders and weather forecasts. Its customizable interface and simple design make adding and editing events quick and intuitive.

What We Love

  • 😍 Awesome!!
  • 👍 Easy to use
  • 👍 Well-organized
  • 🎨 Helpful color-coding

Room to Improve

  • 🐛 Deleted events/data loss
  • 🔒 Requires full access to Apple Calendar
  • 🗓️ Can't edit read-only events
Notion Calendar#3

Notion Calendar by Notion Labs, Incorporated

For your work and life
Worth Considering
📊 Productivity
4.7😐(7.2K ratings)
Free
Notion Calendar screenshot 1
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Manage your schedule and events with a unified view across multiple calendars. Integrate with your Notion workspace to link documents and projects directly to your events. Offers customizable widgets for quick access to upcoming appointments and event details.

What We Love

  • 🚀 Smooth and fast
  • 🔒 Robust security features
  • 👍 Clean and intuitive UI
  • 👍 Great integration with Notion

Room to Improve

  • 🐛 Frequent crashes and bugs
  • 🔍 Limited calendar views (only 3-day)
  • 🔍 No iPad support

More Free AI Calendar apps to explore

4
Calendar · Planner & Reminders
Calendar · Planner & Reminders
Calendar · Planner & Reminders
Tasks, Agenda & To Do List AI
Free

This app offers a streamlined calendar experience with beautiful, intuitive views of your schedule. It unifies events and reminders, allows for quick natural language event entry, and provides contact history. It supports major calendar services and offers premium features through subscription.

Intuitive day and month viewsUnified events and remindersNatural language event entry
📊 Productivity
(59K)
free with in-app purchases
5
Cortex - Private AI Assistant
Cortex - Private AI Assistant
Cortex - Private AI Assistant
AI Planner for Your Calendar
Free
📊 Productivity
(0)
6
Busy Calendar - AI Assistant
Busy Calendar - AI Assistant
Busy Calendar - AI Assistant
Smart and Simple Scheduling
Free

This AI-powered scheduling tool integrates with your existing calendars to intelligently plan new events around your availability. It offers a Kanban-style view with dedicated panes for today, this week, and unscheduled items, allowing for easy drag-and-drop management of tasks and events.

AI-powered smart schedulingDrag-and-drop event managementKanban-style calendar view
🔧 Utilities
(1)
free
7
Floyd: AI-powered Calendar
Floyd: AI-powered Calendar
Floyd: AI-powered Calendar
by Emir Yorulmaz
Free
📊 Productivity
(0)
8
Otto: AI Calendar & Planner
Otto: AI Calendar & Planner
Otto: AI Calendar & Planner
Your week, planned by AI
Free
📊 Productivity
(0)
9
Timestamps - Calendar AI
Timestamps - Calendar AI
Timestamps - Calendar AI
Text to Calendar, Instantly
Free
$1.99 | 100% OFF
🔧 Utilities
(0)
10
SayDate - AI Smart Calendar
SayDate - AI Smart Calendar
SayDate - AI Smart Calendar
Chat to Schedule & Plan
Free
📊 Productivity
(0)
11
Nusmark - AI Calendar
Nusmark - AI Calendar
Nusmark - AI Calendar
Make Time For Everything
Free
📊 Productivity
(0)
12
LocalPlan: AI Calendar
LocalPlan: AI Calendar
LocalPlan: AI Calendar
Turn text into events.
Free
📊 Productivity
(0)
13
Timber — AI Calendar
Timber — AI Calendar
Timber — AI Calendar
Chat to plan your schedule
Free
📊 Productivity
(0)
14
Caledari: AI Calendar Planner
Caledari: AI Calendar Planner
Caledari: AI Calendar Planner
Booking link & calm planner
Free
$3.99 | 100% OFF
📊 Productivity
(0)
15
Nowadays.ai
Nowadays.ai
Nowadays.ai
AI that built around your day
Free
📊 Productivity
(0)
16
Lumina pro Calander Assistant
Lumina pro Calander Assistant
Lumina pro Calander Assistant
by NICHOLAS ERWIN HEITKAMP
Free
📊 Productivity
(0)
17
SayEvent - AI Calendar
SayEvent - AI Calendar
SayEvent - AI Calendar
AI Planner for Daily Schedule
Free

This AI-powered planner transforms your schedule by allowing you to create, update, and manage events through natural conversation or by processing images. It offers intelligent suggestions, conflict detection, and seamless integration with your existing calendar, saving you time and reducing manual entry.

AI-powered event creation and managementNatural language chat interfaceCreate events from photos
📊 Productivity
(1)
free with in-app purchases
18
Snugee - AI Family Calendar
Snugee - AI Family Calendar
Snugee - AI Family Calendar
AI family planner, made simple
Free

This AI-powered family planner simplifies organization with features like automated scheduling, meal planning, and habit tracking. It helps families stay connected and manage daily life collaboratively through shared calendars and reminders.

AI Assistant for schedulingAutomated meal planningHabit tracker with rewards
📊 Productivity
(1)
free
19
TomoToki: AI Calendar Planner
TomoToki: AI Calendar Planner
TomoToki: AI Calendar Planner
Calendar + Tasks + Notes
Free
📊 Productivity
(0)
20
Ryokai: AI Calendar Assistant
Ryokai: AI Calendar Assistant
Ryokai: AI Calendar Assistant
AI powered unified calendar
Free

This AI-powered assistant helps you manage your schedule by understanding your natural language voice commands. It unifies multiple calendars, prioritizes your tasks, and learns your preferences over time for personalized planning.

Voice-first schedulingUnified multi-calendar viewIntelligent task prioritization
📊 Productivity
(1)
freemium

FAQ about Free AI Calendar

What are the best free ai calendar apps for iPhone?
AI Calendar - Voice Scheduler tops our free ai calendar apps ranking as of August 2026, with a 4.6-star average from 147 App Store ratings, and it's free to download.
AI Calendar - Voice Scheduler has no ads and has no in-app purchases, according to its App Store listing as of August 2026.
We track 250+ free ai calendar apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
AI Calendar allows you to add events to your schedule using simple, natural language sentences, much like speaking to a secretary. It also features a clear monthly calendar view, AI-powered conversational abilities through ChatGPT, and push notification reminders.
The AI secretary can quickly schedule appointments for you in under 5 seconds using just one sentence. Beyond scheduling, it's equipped with ChatGPT's knowledge base, allowing it to answer your questions and engage in conversation.