Comparison

Karkulka PMDP vs Tracey.ai

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

Head to head

About

Karkulka PMDP

Features

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Karkulka je služba nabízející sdílená auta pro obyvatele Plzně a okolí. Je určena pro lidi, kteří nepotřebují nebo nechtějí vlastnit vůz, ale rádi by si ho jednoduše a rychle půjčili, jen když potřebují. Ideální řešení pro ty, kteří nenajedou svým vozem více než 10 000 km za rok. Registrace je jednoduchá. V aplikaci pouze vyplníte své údaje a vložíte fotografii řidičského průkazu. Vaše údaje si ověříme a během několika hodin můžete začít jezdit. V aplikaci lehce zjistíte polohu a dostupnost vozů. Auto si rezervujete na čas, kdy ho budete potřebovat. Za chvíli, za týden nebo za měsíc. Karkulka vám usnadní cestu nejen k babičce. V rámci doby své rezervace můžete auto využít na cestu kamkoli. Po Plzni, po Česku i do zahraničí.

About

Tracey.ai

Features

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Tracey is a research app for participants in studies run by Tracey.ai. The application allows the research participants to upload the data they recorded to a safe cloud storage. With the user' permission the app locates the desired files and saves them to a dedicated folder on a research agency's repository.

Screenshots

Karkulka PMDP1 screens

Tracey.ai4 screens

Verdict

The call

The clearest difference is update cadence: Tracey.ai at every 2 weeks against Karkulka PMDP's every 4 months. Karkulka PMDP's advantage is iOS requirement (13.0 vs 17.5). On price, 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Karkulka PMDP ships an update every 4 months, Tracey.ai every 2 weeks. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.

Scorecard2 real differences · 4 level

Karkulka PMDP versus Tracey.ai: the parameters behind the verdict, then further details
Parameter	Karkulka PMDP	Tracey.ai
Price	Free	Free
Update frequency	Every 4 months	Every 2 weeks — better
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPad, iPod — better	iPhone, iPad
Requires iOS	13.0 — better	17.5
Further details — not scored
Size	37 MB	5 MB
Age rating	4+	4+
Developer	Green24 Holding, a.s.	Tracey.ai s.r.o.

In-app purchases

None

Karkulka PMDP

No in-app purchases

None

Tracey.ai

No in-app purchases

Questions

Is Karkulka PMDP free?

Karkulka PMDP is free to download, with no in-app purchases.

Is Tracey.ai free?

Tracey.ai is free to download, with no in-app purchases.

Do Karkulka PMDP or Tracey.ai have ads?

Neither Karkulka PMDP nor Tracey.ai shows ads.

Which is updated more often, Karkulka PMDP or Tracey.ai?

Karkulka PMDP ships an update every 4 months, and Tracey.ai every 2 weeks. Most recently, Karkulka PMDP was updated on November 2, 2026 and Tracey.ai on November 4, 2026.