Comparison

CalT vs Countdown Timer Reminder

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

Head to head
About

CalT

Perform calculations with dates and times, including adding, subtracting, multiplying, and dividing time intervals. Customize the app's appearance with themes and colors. Find the difference between two specific dates and times.

Highlights
  • Add, subtract, multiply, and divide time intervals
  • Calculate difference between two dates/times
  • Switch between result modes
  • Lite and Dark themes
  • Customizable accent colors
Features
Read full description

CalT is an easy, convenient and perfect tool to perform Date & Time calculations. 1. Easily add, subtract, multiply and divide Minutes, Hours, Days, Months and even Years. 2. Switch between different result modes. 3. Choose between Lite and Dark app themes and pick your favorite color to make the app match your taste. DIFFERENCE Find out what is the difference between two dates and times. CalT is nothing superfluous and only that that is necessary for calculations of date and time.

About

Countdown Timer Reminder

Features
Read full description

Countdown Timer Reminder – Full App Description Countdown is a beautifully designed countdown timer app that transforms how you track time across all your Apple devices. Perfect for cooking, workouts, breaks, work sessions, or any task where you need to watch the clock—and now with Apple Watch support, your timers go everywhere you do. Core Timer Features Run Multiple Timers Simultaneously Never choose between tasks again. Run up to 5 timers concurrently, each with its own countdown, custom label, and independent notification. Pause one while others keep ticking. Whether you're juggling multiple cooking projects, staggering workout intervals, or managing parallel work tasks, every timer operates independently with its own end time, notification, and Live Activity. Custom Timer Creation Create exactly what you need. Set any duration from 1 minute to hours, add meaningful labels ("lasagna," "laundry," "meeting prep"), and start instantly. Each timer remembers its configuration for next time through the history system. Smart Dashboard Design Forget empty states. Your dashboard is always ready with multiple pathways to start a timer: Quick Start — Tap common durations (1, 3, 5, 10, 15, 25, 30, 45 minutes) instantly with zero friction Most Used — See the durations you reach for most often, intelligently sorted by frequency Favorites — Star your go-to presets to pin them to the top for one-tap access Recent Timers — Browse your complete history with timestamps and restart any past countdown instantly Preset Categories — Browse thoughtfully curated collections organized by use case (Cooking, Fitness, Work, Breaks, Focus, Productivity, etc.) Feature Tips — Lightweight, dismissible pointers to app capabilities that aren't obvious from the main screen Running Timers Section — See all active countdowns at a glance, sorted by which finishes soonest Multi-Device Integration Apple Watch App Your timers go with you. The native Apple Watch app displays running timers on your wrist with: Clear countdown display for the timer finishing soonest Quick tap controls to pause, resume, and complete timers Haptic feedback when timers finish Automatic sync between iPhone and Watch Full timer management directly from your wrist—no iPhone required Lock Screen & Dynamic Island View running timers without unlocking your phone: Live Activities show countdown progress on your Lock Screen in real-time Dynamic Island displays the timer finishing soonest with clear, readable text One-tap access to pause or complete timers directly from the Lock Screen Automatic dismissal when all timers finish Home Screen Widget Add the Quick Timer widget to your home screen for instant access: Start a countdown in a single tap Choose which preset or quick-start duration to display See timer progress at a glance Launch straight into timer creation for custom durations Voice & Automation Siri Integration Timers start with your voice: "Start a 10 minute timer" works even with the app closed Use quick-start durations and common preset names Fully compatible with Siri Shortcuts for advanced automation Create custom Siri commands for your most-used durations Smart Notifications & Alerts Customizable Alerts Stay informed without constant interruption: Configurable alert sounds with multiple options Haptic feedback patterns Background notification support for when the app is closed Optional silent notifications for working while timing Organization & History Timer History Never lose track of what you've timed: Complete history with timestamps for every timer run Quick access to restart any past timer with one tap "Clear History" option to start fresh Persistent across app sessions Favorites System Star what you use most: EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

CalT4 screens
Countdown Timer Reminder4 screens

Verdict

The call

The clearest difference is price: Countdown Timer Reminder at Free against CalT's $0.99. CalT's advantage is iOS requirement (12.0 vs 16.0). On update cadence, 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

Countdown Timer Reminder is free to download; CalT costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

CalT ships an update every 16 months, Countdown Timer Reminder every 18 months. The most recent releases landed on October 6, 2026 and September 28, 2026 respectively.

Scorecard2 real differences · 8 level
CalT versus Countdown Timer Reminder: the parameters behind the verdict, then further details
ParameterCalTCountdown Timer Reminder
Price$0.99Free — better
Rating2.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 16 months — betterEvery 18 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, Apple Watch
Requires iOS12.0 — better16.0
Further details — not scored
Size9 MB22 MB
Age rating4+4+
DeveloperVladislav KovalyovFarouk Nasser

In-app purchases

None

CalT

No in-app purchases

None

Countdown Timer Reminder

No in-app purchases

Questions

Is CalT free?
CalT costs $0.99, with no in-app purchases.
Is Countdown Timer Reminder free?
Countdown Timer Reminder is free to download, with no in-app purchases.
Do CalT or Countdown Timer Reminder have ads?
Neither CalT nor Countdown Timer Reminder shows ads.
Which is updated more often, CalT or Countdown Timer Reminder?
CalT ships an update every 16 months, and Countdown Timer Reminder every 18 months. Most recently, CalT was updated on October 6, 2026 and Countdown Timer Reminder on September 28, 2026.

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