Comparison

Kozen Yoga vs Checkstack

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

Head to head
About

Kozen Yoga

Features
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The Kozen Yoga app makes it very easy for you to manage your Kozen Yoga account, book into our classes and events and keep in touch with us. You can easily message us if you have a question or want to share something with us. You can also follow our public feed to see any announcements we make, promos we run, or content we share.

About

Checkstack

Features
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Check off your habits, build streaks, and see every perfect day add up. Checkstack is a calm, simple habit tracker that feels at home on your iPhone. Tap once to complete a habit, watch today's progress bar fill, and keep your streaks going — without accounts, ads, or clutter. TODAY AT A GLANCE • See "3 of 5 done" and a progress bar that fills in each habit's colour • Habits grouped into Morning, Afternoon, Evening and Anytime • Swipe to complete or archive, long-press to reorder • Daily, weekday, weekend or custom schedules • Count habits like "8 glasses of water" with a goal per day PROGRESS THAT MOTIVATES • Perfect days — every habit done — with your current and best run • Trends for the week, month, six months and year • Clear comparisons with the previous period, in plain language • Current and best streak, completion rate and full calendar history • Collect awards at 7, 30, 50, 100 and 365-day streaks EVERYWHERE YOU ARE • Interactive home screen widgets — tick habits off without opening the app • Lock screen widgets • Reminders with a "Mark as Done" button right in the notification • Siri and Shortcuts: "Log Read in Checkstack" • Spotlight search • iCloud sync across your iPhone and iPad MADE YOUR WAY • Pick an icon and colour for every habit, with icons suggested from the name • Light, dark or system appearance, and your choice of week start • Haptics you can turn off PRIVATE BY DESIGN Your habits live on your devices and in your own iCloud account. No accounts, no ads, no analytics, no tracking.

Screenshots

Kozen Yoga4 screens
Checkstack4 screens

Verdict

The call

The clearest difference is iOS requirement: Kozen Yoga at 15.1 against Checkstack's 26.2. On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

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

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on September 29, 2026 and October 25, 2026 respectively.

Scorecard1 real difference Ā· 5 level
Kozen Yoga versus Checkstack: the parameters behind the verdict, then further details
ParameterKozen YogaCheckstack
PriceFreeFree
Update frequencyEvery 3 monthsEvery 3 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.1 — better26.2
Further details — not scored
Size55 MB3 MB
Age rating4+4+
DeveloperMomence, Inc.OcuNecu

In-app purchases

None

Kozen Yoga

No in-app purchases

None

Checkstack

No in-app purchases

Questions

Is Kozen Yoga free?
Kozen Yoga is free to download, with no in-app purchases.
Is Checkstack free?
Checkstack is free to download, with no in-app purchases.
Do Kozen Yoga or Checkstack have ads?
Neither Kozen Yoga nor Checkstack shows ads.
Which is updated more often, Kozen Yoga or Checkstack?
Kozen Yoga ships an update every 3 months, and Checkstack every 3 months. Most recently, Kozen Yoga was updated on September 29, 2026 and Checkstack on October 25, 2026.

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