Comparison

Plankstar vs Check Day

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

Head to head
About

Plankstar

This app helps you track and improve your plank workouts with various timer modes, voice guidance, and detailed statistics. It automatically records your progress and allows you to share achievements. Unlock premium features and remove ads with an in-app purchase.

Highlights
  • Plank timer with goal, max time, and set modes
  • Voice guidance and sound effects
  • Automatic workout recording
  • Workout calendar and statistics
  • Customizable challenges
  • Apple Health integration
  • Social sharing
Read full description

PlankStar is an app that tracks various types of plank exercises. ◉ Plank timer with various methods • Goal Time: You can do a goal time plank. • Max Time: Measure plank time without time limit. • Sets: You can create a routine with a set time and rest time for each set. • Advanced set settings: You can create more detailed routines by setting the time and rest time for each set. ◉ Voice guidance and sound effects • Voice Guidance: You can hear preparations, workouts, completions, and more by voice. • Sound Effects: You can change the clock sound. ◉ Automatic workout recording • Automatically records workout date, duration, maximum set time, time per set, rest time, all-time high time, calories, and more. ◉ Workout Calendar • You can check the exercise day on the calendar. ◉ Statistics • You can view statistics such as daily, monthly and yearly workouts, time, and calories burned. • You can easily check the exercise time for each period in a graph. • You can view the exercise list and details for each period. ◉ Challenge • You can create your own goal time to challenge yourself and manage your workout records. ◉ Save on Apple Health • Record your workout results in Apple Health, read your profile information from Apple Health and use it to calculate calories. ◉ Share • You can share your workout history as an image on social media or messenger on the workout completion screen and workout details screen. ◉ Dark Mode • Reduces battery consumption and reduces glare. ◉ Support • If you have any questions or suggestions, please send them through Settings > App Information > Inquiries and Suggestions in the app and we will do our best to answer them. ◉ Premium • Remove ads and use premium features through in-app purchases. Terms of use: http://waneelab.com/terms-of-service/

About

Check Day

Features
Read full description

Check Day is a simple daily routine tracker built around quick check-ins. Instead of managing long task lists, you can focus on repeating the small actions that matter every day, like taking vitamins, drinking water, stretching, reading, or walking. With Check Day, you can: - Create recurring routines with a daily target count - Check in quickly from the app - View your progress for the current cycle at a glance - Edit or delete past check records - Set daily reset times for each routine - Receive reminders throughout the day - Use the home screen widget for faster access Check Day is designed to feel lightweight, clear, and fast, so you can keep up with your routines without unnecessary complexity.

Screenshots

Plankstar4 screens
Check Day3 screens

Verdict

The call

The clearest difference is in-app purchases: Check Day at none against Plankstar's 3. Check Day also leads on update cadence (every 10 days vs every 3 months). Plankstar's advantage is iOS requirement (15.0 vs 26.0). On price, ads 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. Plankstar sells 3 in-app purchases, starting at $0.99 per month. Check Day asks for nothing beyond the download.

UpkeepUpdate frequency

Plankstar ships an update every 3 months, Check Day every 10 days. The most recent releases landed on October 18, 2026 and October 11, 2026 respectively.

Scorecard3 real differences · 7 level
Plankstar versus Check Day: the parameters behind the verdict, then further details
ParameterPlankstarCheck Day
PriceFreeFree
Rating3.5 (2 ratings) — better—
Positive reviews28.6% of reviews—
Number of ratings2 — better—
Update frequencyEvery 3 monthsEvery 10 days — better
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.0 — better26.0
Further details — not scored
Size107 MB4 MB
Age rating4+4+
DeveloperYoungwan ChoiSung Ahn Kim

In-app purchases

3 purchases

Plankstar

Subscriptions2
  • Monthly Premium$0.991 Month
  • Annual Premium$3.991 Year
One-time1
  • Lifetime Premium$19.99
None

Check Day

No in-app purchases

Questions

Is Plankstar free?
Plankstar is free to download, with in-app purchases available.
Is Check Day free?
Check Day is free to download, with no in-app purchases.
Do Plankstar or Check Day have ads?
Both Plankstar and Check Day show ads.
Which is updated more often, Plankstar or Check Day?
Plankstar ships an update every 3 months, and Check Day every 10 days. Most recently, Plankstar was updated on October 18, 2026 and Check Day on October 11, 2026.

Other comparisons