Comparison

CalT vs Arcora

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

Arcora

Features
Read full description

See work and personal plans take shape as colored arcs on an analog clock. Arcora is a visual day planner that helps you understand how your day is planned at a glance. ■ Time blocking on the clock Add meetings, commutes, chores, exercise, study, and breaks directly to the clock. • Each arc shows the planned start, end, and duration, making open time and overlapping plans easier to spot. • You can also review your day in a timeline or browse weekly and monthly calendars. • Choose from more than 100 preset tasks with icons. • Create your own tasks and categories. • Copy a full day of plans to another date. ■ Turn unscheduled ToDos into time Keep tasks without a time in the inbox. • Add notes, priorities, and time estimates, then move each ToDo into your schedule when you are ready to act. • Group tasks inside a plan and use them like a checklist, marking each item complete as you go. • Save repeated sets of tasks as routines and create recurring plans for meetings, morning preparation, exercise, reading, and other habits you want to build. • Optional reminders can notify you before a scheduled plan begins. ■ Review planned time Premium weekly and monthly reports total the time assigned to plans by task and category. They also show how much of that planned time belongs to completed plans. • Use day-end review to decide what is complete and what carries over (Premium). ■ 1–60 minute focus timer For focused work or study, set a single countdown from 1 to 60 minutes. • It keeps the remaining time visible and notifies you when the countdown ends. ■ Widgets and Apple Watch Home Screen widgets show the clock, upcoming plans, and unscheduled tasks, with completion controls for supported items. • StandBy is supported. • A running focus timer appears as a Live Activity on the Lock Screen and Dynamic Island. • On Apple Watch, view today’s schedule arcs and plan details, use the focus timer, and add a complication. ■ Calendar and iCloud On iPhone and iPad, overlay events from the device calendar and, with Premium, export selected Arcora plans to a calendar you choose. • If you enable iCloud sync, plans, inbox tasks, cards, routines, settings, and other Arcora data sync between devices using the same Apple ID; updates may take time. • Plan data stays on the device and, when sync is enabled, in your iCloud. • Calendar export writes selected plans to the chosen calendar. ■ Make the view yours Choose the clock and display that work for you. • 11 color themes and 6 clock designs. • VoiceOver support. • 12-hour and 24-hour time. • Japanese, Buddhist, and Minguo calendars. ■ For visual planning Arcora may also suit people with ADHD who prefer to see plans and time allocation visually. It is a general-purpose app for organizing work and everyday life. • See plans as arcs on a clock. • Give unscheduled ToDos a time. • Repeat everyday routines. ■ Privacy No account registration is required, and there are no ads. • For purchase management and related analytics, Arcora sends an anonymous app identifier, basic device and OS information, and purchase information to RevenueCat. ■ Choose from three Premium plans Premium includes: • Unlimited custom tasks and routines, all themes and clock designs, colored tags, image notes, planned-time reports, day-end review, and calendar export. Arcora is free to use. Choose a monthly or yearly subscription, or a one-time purchase for Premium. Legal By using Arcora, you agree to Apple’s Standard End User License Agreement (EULA) and the Arcora Terms of Use. Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Arcora Terms of Use: https://uh-creations.com/products/arcora/terms.html Privacy Policy: https://uh-creations.com/products/arcora/privacy.html

Screenshots

CalT4 screens
Arcora4 screens

Verdict

The call

The clearest difference is price: Arcora at Free against CalT's $0.99. Arcora also leads on update cadence (monthly vs every 16 months). CalT's advantage is in-app purchases (none vs 3) and iOS requirement (12.0 vs 17.0). On 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

Arcora is free to download; CalT costs $0.99 up front. Arcora sells 3 in-app purchases, starting at $4.99 per month. CalT asks for nothing beyond the download.

UpkeepUpdate frequency

CalT ships an update every 16 months, Arcora monthly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 6 level
CalT versus Arcora: the parameters behind the verdict, then further details
ParameterCalTArcora
Price$0.99Free — better
Rating2.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 16 monthsMonthly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, Apple Watch
Requires iOS12.0 — better17.0
Further details — not scored
Size9 MB31 MB
Age rating4+4+
DeveloperVladislav Kovalyovuh-creations

In-app purchases

None

CalT

No in-app purchases

3 purchases

Arcora

Subscriptions2
  • Premium Monthly7 Days trial$4.991 Month
  • Premium Yearly$39.991 Year
One-time1
  • Premium Lifetime$89.99

Questions

Is CalT free?
CalT costs $0.99, with no in-app purchases.
Is Arcora free?
Arcora is free to download, with in-app purchases available.
Do CalT or Arcora have ads?
Neither CalT nor Arcora shows ads.
Which is updated more often, CalT or Arcora?
CalT ships an update every 16 months, and Arcora monthly. Most recently, CalT was updated on October 30, 2026 and Arcora on October 31, 2026.

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