# CKalender vs Delphi Pro

The clearest difference is price: CKalender at Free against Delphi Pro's $0.99. CKalender also leads on iOS requirement (12.0 vs 16.0). Delphi Pro's advantage is update cadence (every 2 weeks vs every 8 months). On ads, in-app purchases and device support there is nothing between them.

CKalender is free to download; Delphi Pro costs $0.99 up front. CKalender sells 1 one-off in-app purchase and Delphi Pro sells 5 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

CKalender ships an update every 8 months, Delphi Pro every 2 weeks. The most recent releases landed on October 27, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | CKalender | Delphi Pro |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/delphi-pro/id6447233487/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 3 MB | 23 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 17+ |
| Developer | [Reinhard Hanselmann](https://appshunter.io/developer/848981931) | [Moritz Mahler](https://appshunter.io/developer/918599588) |

## What reviewers say

### CKalender

[App page](https://appshunter.io/ios/app/ckalender-app-ab-release-2022/id1583773040)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CKApp-Freischaltung | $2.99 | one-time |


### Delphi Pro

[App page](https://appshunter.io/ios/app/delphi-pro/id6447233487)

Access advanced AI capabilities on your mobile device for instant answers and creative image generation. This tool is designed to assist with a wide range of queries and creative tasks, making AI accessible anytime.

**Highlights:** AI-powered chat assistance, Image generation capabilities, Answers to user queries, Mobile accessibility, Creative tool

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Delphi-Premium | $7.99 | per month |
| 20k Token | $0.99 | one-time |
| 50k Token | $1.99 | one-time |
| 100k Token | $2.99 | one-time |
| 300k Token | $4.99 | one-time |


## Frequently asked questions

### Is CKalender free?

CKalender is free to download, with in-app purchases available.

### Is Delphi Pro free?

Delphi Pro costs $0.99, and also offers in-app purchases.

### Do CKalender or Delphi Pro have ads?

Neither CKalender nor Delphi Pro shows ads.

### Which is updated more often, CKalender or Delphi Pro?

CKalender ships an update every 8 months, and Delphi Pro every 2 weeks. Most recently, CKalender was updated on October 27, 2026 and Delphi Pro on October 8, 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.*