Comparison

Kardi Ai vs SleepFactory

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

Head to head

Kardi Ai

Propojujeme srdce s lékaři

About

Kardi Ai

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Kardi Ai bridges the gap between your heart and your cardiologist through our app, seamlessly transmitting ECG data from the Polar chest strap to secure cloud storage. Your cardiologist can then review your heart health with you during your next visit.

About

SleepFactory

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SleepFactory je aplikace, která vám pomůže s problémy se spánkem. Používá účinné metody (odborně zvané KBTi), které experti doporučují jako nejlepší cestu k lepšímu spánku. Aplikace vám nabídne rady přizpůsobené přímo vašim potřebám, bude sledovat, jak spíte, a naučí vás techniky, jak uklidnit mysl před spaním. S naší pomocí znovu zažijete, jaké to je dobře se vyspat. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://sleepfactory.cz/pp-sf-0.1.pdf

Screenshots

Kardi Ai4 screens

SleepFactory4 screens

Verdict

The call

The clearest difference is update cadence: SleepFactory at fortnightly against Kardi Ai's monthly. 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

Kardi Ai ships an update monthly, SleepFactory fortnightly. The most recent releases landed on September 8, 2026 and September 14, 2026 respectively.

Scorecard1 real difference · 5 level

Kardi Ai versus SleepFactory: the parameters behind the verdict, then further details
Parameter	Kardi Ai	SleepFactory
Price	Free	Free
Update frequency	Monthly	Fortnightly — better
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPad, iPod — better	iPhone, iPod
Requires iOS	15 — better	15.1
Further details — not scored
Size	42 MB	124 MB
Age rating	17+	12+
Developer	KARDI AI Technologies s.r.o.	Klinika TES

In-app purchases

None

Kardi Ai

No in-app purchases

None

SleepFactory

No in-app purchases

Questions

Is Kardi Ai free?

Kardi Ai is free to download, with no in-app purchases.

Is SleepFactory free?

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

Do Kardi Ai or SleepFactory have ads?

Neither Kardi Ai nor SleepFactory shows ads.

Which is updated more often, Kardi Ai or SleepFactory?

Kardi Ai ships an update monthly, and SleepFactory fortnightly. Most recently, Kardi Ai was updated on September 8, 2026 and SleepFactory on September 14, 2026.