Comparison

Command vs Chroniton

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

Head to head
About

Command

This app offers a command-line interface for performing complex calculations, including chained operations, variable assignments, and advanced mathematical functions. It supports various number bases, constants, and provides a built-in help system for ease of use.

Highlights
  • Command-line interface
  • Chained calculations
  • Variable assignment
  • Complex numbers
  • Multiple number bases
  • Unit and function definition
  • Extensive math functions
Features
Read full description

Command-Line Calculator (CLCalculator) provides the most fluid interface, especially if you are performing chained calculations i.e. multiple calculations that rely on the results of previous calculations. By providing a command-line interface, CLCalculator allows you to easily enter and view the history of your calculations. You focus on your calculations instead of being intimidated by myriad of buttons on a traditional calculator interface! In addition to performing basic calculations, CLCalculator provides an array of features such as: - Assign and reuse variables - Complex numbers - Number bases i.e. binary, octal, hexadecimal - Constants e.g. e, pi - String manipulation - Matrices - Unit conversion: in-built and user-defined (create your own units!) - Functions: in-built and user-defined (create your own functions!) - Arithmetic functions e.g. fraction, square root, rounding off, ceiling, floor, logarithm - Algebra functions e.g. derivative, simplify symbolic expressions, solve linear equations - Bitwise functions e.g. bitwise and, not, or, left and right shift - Combinatorics functions e.g. Bell, Catalan, Stirling numbers - Geometry functions - Logical functions e.g. and, not, or, xor - Probability functions e.g. combinations, permutations, factorial - Relational functions - Set functions e.g. cartesian product, intersection, union - Statistics functions e.g. mean, median, mode, standard deviation, variance - Trigonometry functions e.g. sin, cos, tan, cot, sinh, acos - and much more! The app also comes with a comprehensive in-built help system with plenty of examples. CLCalculator is powered by math.js (https://mathjs.org/)

About

Chroniton

This app helps you track important dates and recurring events, providing reminders for future tasks. It's useful for managing everything from car maintenance and household chores to personal milestones and pet care.

Highlights
  • Event and date tracking
  • Customizable categories
  • Next due date reminders
  • Photo and note attachments
  • One-tap date updates
  • Email event sharing
  • iCloud sync
Features
Read full description

Chroniton is an event and date tracker that helps you remember when something was done and reminds you when you need to revisit it again. Use Chroniton to: - Keep track of automotive maintenance (oil changes, when tires were last changed, when next regular service is due, etc) - Track recurring household maintenance needs (furnace/AC filter changes, last gutter cleaning, etc) - Track purchase dates and warranty expiration dates. - Keep lists of significant personal events (last eye exam, last dental cleaning, last check of credit reports, etc) - Remember a history of events for you kids such as the last allowance raise, the last time school portraits were done, etc. - Track pet-related events like vet visits, immunizations, license/tag registrations, etc. - Keep a reminder of important financial dates (when you last paid your annual car insurance premium, date you signed your apartment lease, date you signed your cell phone contract, when you last reviewed your W2 status, etc) - Keep track of any event you want to be able to refer back to! Key Features: - Add photo to events - Add unlimited notes to any event - Define your own categories - Assign a “next due” date to any event (events due soon show a yellow indicator, events past due show a red indicator) - Update an event’s date as “done today” with one tap - Send any event, or your whole list, to an email - Reorder events and categories to see your most important items at the top - Quick-entry buttons to set dates a week, a month, or a year in the future - Easily add or delete events from the main screen - Portrait and landscape views supported on both iPhone and iPad - Use multiple devices with automatic iCloud sync

Screenshots

Command4 screens
Chroniton3 screens

Verdict

The call

The clearest difference is update cadence: Command at every 5 days against Chroniton's every 38 months. Command also leads on device support (4 vs 2) and iOS requirement (13.0 vs 16.4). On price, review sentiment, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Command ships an update every 5 days, Chroniton every 38 months. The most recent releases landed on September 9, 2026 and October 15, 2026 respectively.

Scorecard3 real differences · 7 level
Command versus Chroniton: the parameters behind the verdict, then further details
ParameterCommandChroniton
PriceFreeFree
Rating5.0 (5 ratings) — better—
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings5 — better—
Update frequencyEvery 5 days — betterEvery 38 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad
Requires iOS13.0 — better16.4
Further details — not scored
Size1 MB2 MB
Age rating4+4+
DeveloperKetan AppaDriftwood Studio Software LLC

Customer experience

Command

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Chroniton

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Command

No in-app purchases

None

Chroniton

No in-app purchases

Questions

Is Command free?
Command is free to download, with no in-app purchases.
Is Chroniton free?
Chroniton is free to download, with no in-app purchases.
Do Command or Chroniton have ads?
Neither Command nor Chroniton shows ads.
Which is updated more often, Command or Chroniton?
Command ships an update every 5 days, and Chroniton every 38 months. Most recently, Command was updated on September 9, 2026 and Chroniton on October 15, 2026.

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