How To Make A Calendar App? Features, Tech Stack And Cost

At work or outside, we have become accustomed  to scheduling apps nonetheless If you have endeavored to make a calendar app ,let us tell you that calendar apps are implemented in following two ways:

1- In-app calendar app

2- Calendar app with full scope

User experience can make or break your business. Same is the case with in-app calendar or calendar app development and integration. We have to look into so many aspects before indulging into the actual development process.

In this blog post, we will be sharing the core features, API and libraries, timeline and cost along with our own experience to offer a real insight into ‘how to make a calendar app’ and the in-app calendar integration.

Table of Contents

Features required to make a calendar app

Syncing appointments – devices and web apps sync will help in syncing contacts, calendar and tasks. This is ideal for companies with shared databases.

Sharing schedules via calendars – help companies align work activities without having to text, email or call every time there is a change in schedule. Just look into each other’s calendar and select the time they are available for the meeting.

Switch between calendars and lists – you can import your events from a different calendar application inside your app. Sort tasks by looking into their due date and filter in list format. There are some use cases like you may be a Google calendar user and planning to switch on your custom calendar app.

Sync your calendar with other calendars – sync with Google Calendars, iCal, Outlook etc. and by using advanced search, you can view all of your team’s work and deadlines assigned.

Mark vital events – view important days/weeks and keep track of events you never want to miss.

Collaborative schedule / support different time zones – important for distributed teams or remote teams or resources working in different time zones. This feature is often called a ‘collaborative calendar’.

Drag and drop events – this creates an ease where you can drag and drop events in different shared groups without adding them manually.

View days, weeks and months schedules – you can switch to different modes i.e. a plan for a single day, or a week, or a month.

Recurring events – often scrums are recurring events where clients want to seek an update on a daily/ weekly/ monthly basis.

features required to make a calendar app

Best calendar app designs and how to prototype using tools

There are different kinds of calendar apps available and instead you go through hundreds of them, we want to save your time. Here we will highlight some of the best calendar apps for design inspiration keeping three main factors in mind i.e.

Interface design / navigation – user experience is utmost important which tells how you navigate the app. Buttons should be clear and obvious, and should not be overcrowded.

Synchronization – since you want integration in your already existing web/mobile app, you should see which one is giving the best possible experience.

USP – every app is different, look for features which can actually boost your app features and can add value.

1-Google Calendar

google calendar
google calendar layout

2-Apple calendar

apple calendar

3-Bright Vibe

bright vibe layout

4-Time Page

time page layout

5-Calendar and task management app by Yi Li

calendar and task management app by Yi Li

6-Kyle Blackman smart calendar app

Kyle Blackman smart calendar app

7-Fantastical 2

fantastical 2

How can you prototype your own calendar app?

Preparing a prototype helps in understanding what sort of features you want in an app. Before the design part, there must be some sketches/ prototype for putting all initial ideas into some sort of shape.

Some of the handy tools are out there in the market and you can build pretty much any calendar feature.

Here is a comprehensive list:

1-Figma (starter – free)

2-InVision Studio (single project free)

3-Adobe XD (free)

4-Web flow (2 unhosted free projects)

5-Axure RP 9 (30 days free trial)

6-Origami studio (free)

7-Justinmind ($19/month)

8-Sketch (free trial)

9-Fluid UI (Solo $8.25/month)

10-Framer (14 days free trial)

11-Marvel (1 user, 1 project free)

12-Proto.io (Solo $12/ month)

13-Principle (free trial)

14-Balsamiq (30 days free trial)

Confused on how to sketch app ideas? Let us help you

APIs and libraries – the technology stack

Apple and Google offer lots of APIs for smooth integration into calendar apps.

Apple EventKit – get calendar data and select from different interfaces.

Google Calendar API – a comprehensive guide is available for integration where you can integrate Google API for web and mobile applications.

Other APIs

-SuperSaaS API

-FX Calendar API

-Calendarific API

-Nylas Cloud Calendar API

-Cronofy API

 API Suggested  Main Features  Price
 Google Calendar API  Create/edit/cancel events, view team   calendars, advance search, view   public calendar, edit private events,   set notifications, reminders, recurring   events, device sync, collaboration of   schedules  Free
 SuperSaas API  Create/edit/cancel events, see public   calendar, edit private events, set   notifications, reminders, recurring   events, device sync, collaboration of   schedules  Free
 Cronofy API  Sync 3rd party calendars, schedule   tasks, sync across multiple devices,   create/edit events  Free
 FX Calendar API  Information on upcoming economic   events, sync 3rd party calendars,   schedule tasks, sync across multiple   devices, create/edit events
 Free trial, and   price plans   $5-$15 / month
 Calendarific API  Information on upcoming economic   events, sync 3rd party calendars,   schedule tasks, sync across multiple   devices, create/edit events
 Free trial, and   price plans   $10- $30 /   month
 Nylas Cloud API  Sync calendar with devices and web   apps  Free
   2 months

 2 months
 $32,200 (rate   $30 and 40/hr)

 $16,000 (rate   $25/hr)

Libraries to make a calendar app

 Android calendar app  iOS calendar app  Web calendar   app

 Event calendar
 Cosmo calendar
 CustomizableCalendar
 AgendaCalendarView
 SlyCalendarView

 Calendar
 CalendarLib
 MBCalendarKit
 FSCalendar
 JTAppleCalendar
 Webix
 jQuery UI
 Calendarize
 KendoUI

Factors influencing the cost and timeline

Following are the factors you should consider while considering the calendar app development:

The platform it is being built on

Visual design customisation

App administration and backend infrastructure

App maintenance cost

Functions and features

Structure of the app development team

App development team location

factors influencing the cost and timeline

Timeline and cost

-Simple calendar app development cost – $60 – 70k for one platform

-Complex, custom (multi-feature) calendar app /integration cost – starts from $300,000+

Regarding the app development timeline:

-Simple calendar app development or integration takes 3 months approx.

-Complex calendar app integration/development takes 6+ months

Phaedra expertise

Unified Doctor’s Hospital App

Healthcare app designed for appointment booking from doctors/ consultants. Client did have the broken functionality but it never worked. Scheduling feature was faulted as there were appointments overlapping the others creating time constraints for doctors as well as patients waiting for their turn.

Phaedra built a calendar app within their healthcare app specifically for scheduling/ appointment booking. It’s a mobile app developed for iOS and Android platforms. Time transparency is acquired where patients can easily see the availability of the doctors by looking into their appointment calendars. Client is now getting clear visibility on advance booked appointments.

unified doctor's hospital app
unified doctor's hospital app layout

Final Verdict

Calendar app development with custom changes or integration of a calendar app in an already existing web/mobile app takes time but the focus should be on the user experience/ value-adding features. However, if you have any ideas for your app improvement or want to develop a calendar app, we are here to help.

Schedule a call with our experts who have experience in building multi-billion dollar solutions.

Get a custom estimate on a ‘how to make a calendar app’. Book a call +14124759053 or contact us.

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