Comparison

Keller Creative App vs Simple Calendar

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

Head to head
About

Keller Creative App

This business companion app streamlines operations and client engagement. It integrates messaging, email, calls, reputation monitoring, scheduling, contact management, and payment processing into one easy-to-use platform.

Highlights
  • Integrated messaging, email, and call functionalities
  • Online reputation monitoring and review management
  • Built-in calendar and appointment scheduling
  • Contact management with up-to-date client information
  • Secure in-app payment processing and invoicing
  • Real-time notifications for leads and updates
Features
Read full description

Keller Creative App: Your All-in-One Business Companion The Keller Creative App, powered by your trusted partner Keller Creative Agency, is a comprehensive mobile solution designed to streamline your business operations and enhance client engagement. This app consolidates essential business functions into a single, easy-to-use platform, ensuring you have the tools you need to succeed at your fingertips. Key Features: Conversation Management: Keep the conversation going with integrated messaging, email, and call functionalities. Manage all client communications seamlessly, ensuring every interaction is tracked and easily accessible. Reputation Management: Stay on top of your brand's online presence. Monitor reviews and feedback across platforms and respond swiftly to maintain a positive image and build trust with your audience. Calendar and Scheduling: Organize your day effectively with a built-in calendar. Schedule appointments, meetings, and calls directly from the app, with automatic reminders to keep you and your clients on track. Contact Management: Access and manage your contacts anytime, anywhere. The app ensures your client information is always up-to-date and readily available. Payment Processing: Simplify the transaction process with secure in-app payment functionality. Invoice clients and receive payments directly through the app, making transactions smooth and hassle-free. Real-Time Notifications: Stay informed with instant alerts for new leads, appointment reminders, and other critical updates. Never miss an opportunity to connect with clients or prospects. The Keller Creative App is your mobile gateway to efficient business management and superior client service. Embrace the power of mobility and elevate your business with the Keller Creative App, where convenience meets functionality.

About

Simple Calendar

Easily manage your events and tasks with a visually appealing calendar. Sync with Google Calendar, add color-coded events, and view weather forecasts. Includes widgets and traditional calendar support.

Highlights
  • Event and task creation
  • Google Calendar sync
  • Color-coded events
  • Customizable widgets
  • Weekly weather display
  • Recurrence patterns
  • Multiple view options
Features
Read full description

A new event begins the moment you tap a date. It helps you create events and tasks quickly and easily, and ensures that you remember them. Decorate your home screen beautifully with the neat looking transparent widget. Key Features of Calendar Plus • Manage all your schedules at a glance by adding various Calendars, including Google Calendar. • Assign color codes to events in each calendar. • Provides various options to display including year, month, week, day and task views. • Display weekly weather information. • Set a pattern of recurrence and the time zone when you create an event. • Choose from several types of widgets with adjustable transparency. • Switch from one day, week, month or year to the next with a simple horizontal swipe. • Set up variety notifications for an event. • Holidays list of 2025 • Country wise holidays Productivity: • Different ways to view your calendar : Quickly switch between month, week and day view. • To-do : Use Reminders to create and view to-dos alongside your events. Go Traditional! • Now you can follow Panchang and Hijri calendar dates in your calendar. Sync all your calendars: • All your calendars in one place - Google Calendar works with all calendars on your phone, including Exchange. • Events from Gmail - Flight, hotel, concert, restaurant reservations and more gets added to your calendar automatically. Menstruation: • No need to download multiple applications to track your periods now you can do it with your own Calendar. Daily feeds: • Stay updated and enjoy a daily feed of jokes, horoscope, cricket schedule and weather. Get ready for your trips! • Now track upcoming long weekends and holidays to travel or do that thing you were finding time for. This app include Subscribe Calendar Plus Monthly at $1.99 and Calendar Plus Yearly at $9.99 to use ads free versions of the app for a Month and user can cancel it anytime. – Privacy Policy: https://sites.google.com/view/liam-sammy-pp – Terms of Use: https://sites.google.com/view/liam-sammy-tos Like us and stay connected!

Screenshots

Keller Creative App4 screens
Simple Calendar4 screens

Verdict

The call

The clearest difference is rating: Keller Creative App at 5.0 against Simple Calendar's 1.0. Keller Creative App also leads on in-app purchases (none vs 3) and ads (none vs shown). Simple Calendar's advantage is update cadence (every 2 weeks vs every 4 months) and iOS requirement (13.0 vs 16.6). On price, ratings volume 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Simple Calendar sells 3 in-app purchases, starting at $1.99 per month. Keller Creative App asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Keller Creative App holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

Keller Creative App ships an update every 4 months, Simple Calendar every 2 weeks. The most recent releases landed on November 4, 2026 and October 30, 2026 respectively.

Scorecard6 real differences · 3 level
Keller Creative App versus Simple Calendar: the parameters behind the verdict, then further details
ParameterKeller Creative AppSimple Calendar
PriceFreeFree
Rating5.0 (1 ratings) — better1.0 (1 ratings)
Number of ratings11
Update frequencyEvery 4 monthsEvery 2 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.613.0 — better
Further details — not scored
Size307 MB44 MB
Age rating17+4+
DeveloperKELLER GROUP, LLCLiam Sammy

In-app purchases

None

Keller Creative App

No in-app purchases

3 purchases

Simple Calendar

Subscriptions2
  • Calendar Plus Monthly$1.991 Month
  • Calendar Plus Yearly$9.991 Year
One-time1
  • Calendar Universe Lifetime$19.99

Questions

Is Keller Creative App free?
Keller Creative App is free to download, with no in-app purchases.
Is Simple Calendar free?
Simple Calendar is free to download, with in-app purchases available.
Which has better reviews, Keller Creative App or Simple Calendar?
Keller Creative App is rated higher. Keller Creative App averages 5.0 out of 5 from 1 ratings, while Simple Calendar averages 1.0 from 1 ratings.
Do Keller Creative App or Simple Calendar have ads?
Simple Calendar shows ads; Keller Creative App does not.
Which is updated more often, Keller Creative App or Simple Calendar?
Keller Creative App ships an update every 4 months, and Simple Calendar every 2 weeks. Most recently, Keller Creative App was updated on November 4, 2026 and Simple Calendar on October 30, 2026.

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