Comparison

CKalender vs Delphi Pro

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

Head to head

Secured AI Chat & Image Maker

$0.99

📊 Productivity

★ 5.01 ratingsView app →

About

CKalender

Features

Read full description

CKApp ist eine App zur Anzeige und Pflege von Terminen des Online-Gruppenkalenders www.ckalender.de per Smartphone oder Tablet. Zur Nutzung ist ein bestehender CKalender-Account notwendig. WICHTIG: Diese App ist kompatibel ab der CKalender-Release-Version 2022. Falls Sie eine ältere CKalender-Version nutzen, dann verwenden Sie bitte die entsprechende andere CKApp-Version.

About

Delphi Pro

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

Read full description

Delphi brings the power of modern AI to your phone, anytime ready to help you. Delphi is also capable of image generation. You'll get answers to everything on your mind.

Screenshots

CKalender3 screens

Delphi Pro4 screens

Verdict

The call

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.

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

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.

UpkeepUpdate frequency

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.

Scorecard3 real differences · 6 level

CKalender versus Delphi Pro: the parameters behind the verdict, then further details
Parameter	CKalender	Delphi Pro
Price	Free — better	$0.99
Rating	—	5.0 (1 ratings) — better
Number of ratings	—	1 — better
Update frequency	Every 8 months	Every 2 weeks — better
Ads	No	No
In-app purchases	Yes	Yes
Monetization	—	Free with in-app purchases
Devices	iPhone, iPad, iPod	iPhone, iPad, Apple Watch
Requires iOS	12.0 — better	16.0
Further details — not scored
Size	3 MB	23 MB
Age rating	4+	17+
Developer	Reinhard Hanselmann	Moritz Mahler

In-app purchases

1 purchases

CKalender

One-time1

CKApp-Freischaltung$2.99

5 purchases

Delphi Pro

Subscriptions1

Delphi-Premium$7.991 Month

One-time4

20k Token$0.99
50k Token$1.99
100k Token$2.99

Show 1 more

300k Token$4.99

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.