Comparison

CheckMARC vs Countdown X

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

Head to head
About

CheckMARC

Features
Read full description

Designed for use by dental equipment manufacturers and distributors, the CheckMARC program travels office to office as a free service to check a dentist’s resin curing protocols and demonstrate the impact of irradiance on light cured composites.

About

Countdown X

Track important upcoming events with a beautiful and simple countdown app. Visualize remaining days with customizable widgets for your home and lock screens. Get timely reminders and organize your events with ease.

Highlights
  • Countdown to any event
  • Home Screen and Lock Screen widgets
  • Live countdown in Dynamic Island
  • Customizable event styling
  • Repeating events
  • Progress tracking
  • Event sharing
Features
Read full description

Countdown X is a simple, beautiful countdown app for the days that matter to you. Count down to birthdays, vacations, weddings, anniversaries, holidays, launches and deadlines, and see how many days are left at a glance on your Home Screen, your Lock Screen and in the Dynamic Island. Count Down to Anything Create a countdown in seconds: pick a date and time or make it all-day, choose its colors and style, and add notes. Set events to repeat every day, week, two weeks, month or year, so birthdays and anniversaries roll over on their own. Start from a template to count down to the end of the year, season or month in one tap. See Your Progress Show the time remaining or the percentage of progress, and set a start date to measure progress from any moment you like. Use Excluded Days to skip the weekdays that don't count, like weekends, and see only the workdays left until a deadline. Widgets and Live Countdown Keep your countdowns in view with Home Screen and Lock Screen widgets, and tap any widget to open its event. Turn on Live Countdown to follow an event's final 8 hours on the Lock Screen and in the Dynamic Island, perfect for a flight, a launch or the start of a party. Reminders Get a reminder the moment your countdown reaches zero, and turn reminders on or off for each event. Reminders are free for everyone. Organize Your Events See which event is next on one clean dashboard and filter your events by Upcoming, Today, This Week, This Month, Later or Past. Duplicate any event in one tap, copy an event's colors and style and paste them onto another countdown, and blur a title to keep a surprise private. Share the Excitement Share any countdown as an image, sized for Instagram Stories, TikTok, feed posts and Messages, or save it to Photos. Works With Your iPhone Find your countdowns in Spotlight, create an event with Siri or Shortcuts, and add a new countdown in one tap from Control Center, the Lock Screen or the Action button. Import events from Calendar and Reminders, and keep everything in sync across your iPhone and iPad with iCloud. Countdown X Premium Countdown X is free with up to three events. Premium unlocks: - Unlimited events - Repeating events - Percentage progress display - Blur Title for private events - Calendar and Reminders import - Share images without the watermark or background Choose a monthly or yearly plan, or pay once with Lifetime. Private by Design No account is required. Your events stay on your device and in your own iCloud. Terms of service: https://countdownx.app/terms Privacy policy: https://countdownx.app/privacy

Screenshots

CheckMARC1 screens
Countdown X4 screens

Verdict

The call

The clearest difference is in-app purchases: CheckMARC at none against Countdown X's 4. CheckMARC also leads on iOS requirement (15.0 vs 18). On price, update cadence, 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. Countdown X sells 4 in-app purchases, starting at $1.99 per 7 days. CheckMARC asks for nothing beyond the download.

UpkeepUpdate frequency

CheckMARC ships an update every 3 weeks, Countdown X every 2 weeks. The most recent releases landed on November 13, 2026 and November 5, 2026 respectively.

Scorecard2 real differences · 8 level
CheckMARC versus Countdown X: the parameters behind the verdict, then further details
ParameterCheckMARCCountdown X
PriceFreeFree
Rating—4.0 (4 ratings) — better
Positive reviews—0.0% of reviews
Number of ratings—4 — better
Update frequencyEvery 3 weeksEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better18
Further details — not scored
Size48 MB25 MB
Age rating4+4+
DeveloperBluelight AnalyticsPlainzer

In-app purchases

None

CheckMARC

No in-app purchases

4 purchases

Countdown X

Subscriptions3
  • Countdown Pro Weekly3 Days trial$1.997 Days
  • Countdown Pro Monthly3 Days trial$2.991 Month
  • Countdown Pro Yearly$14.991 Year
One-time1
  • Countdown Pro Lifetime$29.99

Questions

Is CheckMARC free?
CheckMARC is free to download, with no in-app purchases.
Is Countdown X free?
Countdown X is free to download, with in-app purchases available.
Do CheckMARC or Countdown X have ads?
Neither CheckMARC nor Countdown X shows ads.
Which is updated more often, CheckMARC or Countdown X?
CheckMARC ships an update every 3 weeks, and Countdown X every 2 weeks. Most recently, CheckMARC was updated on November 13, 2026 and Countdown X on November 5, 2026.

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