# Keller Creative App vs Simple Calendar

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.

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.

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.

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.

## The numbers

| Metric | Keller Creative App | Simple Calendar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/keller-creative-app/id6736440898/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/simple-calendar-calendar/id6738260581/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 307 MB | 44 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [KELLER GROUP, LLC](https://appshunter.io/developer/1772025734) | [Liam Sammy](https://appshunter.io/developer/1445530268) |

## What reviewers say

### Keller Creative App

[App page](https://appshunter.io/ios/app/keller-creative-app/id6736440898)

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:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### Simple Calendar

[App page](https://appshunter.io/ios/app/simple-calendar-calendar/id6738260581)

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:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calendar Plus Monthly | $1.99 | per month |
| Calendar Plus Yearly | $9.99 | per year |
| Calendar Universe Lifetime | $19.99 | one-time |


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*