Comparison

Date T Calc vs Rlytic R Programming Editor

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

Head to head
About

Date T Calc

Easily calculate future and past dates by adding or subtracting days, hours, and minutes. Determine the exact difference between two selected dates, with options for date-only or date-and-time calculations.

Highlights
  • Calculate future and past dates
  • Determine date differences
  • Operate in date-only or date-time modes
  • Add/subtract date intervals
  • Consider Daylight Saving Time
  • Supports 12/24 hour format
  • Internal help guide
Features
Read full description

Date T Calc can calculate future and past dates adding days, hours and minutes to a specified date. It can also calculate date difference between two dates you select. EASY TO USE • Add a date/time interval to a specific date guessing the future/past date • Calculate the difference from 2 dates • Operate in date only mode (calculating only days) or also considering hours and minutes • Add from a selected date a specified amount of days in a click • Switch at any time from guess date to date difference in a click • Can add or subtract date going in the future or in the past FEATURES • Operate in Date Guess mode guessing a date after adding days/hours/minutes • Operates in Date Difference mode selecting 2 date and indicating the difference • Operates in Date Mode (only days) or Date Time Mode, working with days, hours and minutes • Can switch at any time from Date Only Mode to Date Time Mode • Can add or subtract date intervals • Can guess future and paste date • Has a preset amount off days, hours ,minutes to add in a touch • Now button to set the current date in a click • Calculation consider also Daylight Saving Time when necessary • Date and time is displayed in your local country setting using 12 or 24 hour format • Internal Help User Guide ALL THE POWER OF iOS • Works both for any iPhone and any iPAD • Optimized for the latest generation iOS devices

About

Rlytic R Programming Editor

This app provides a mobile R programming environment for iOS devices. It allows users to create, manage, and execute R code, generating results and visualizations. Offers both local and cloud modes for project management and synchronization.

Highlights
  • R project management
  • Code execution and visualization
  • Local and cloud modes
  • Git integration
  • Dropbox/Box synchronization
  • Syntax highlighting
Features
Read full description

Rlytic is a free R Editor for your iOS Device. It allows you to create and manage R projects directly on your iOS device and generate the result and plots by using Verbosus (Online R Editor). "R is a powerful programming language and environment widely used for statistical computing, data analysis, and visualization. Known for its vast ecosystem of packages, R allows users to easily manipulate, analyze, and visualize data, making it a popular choice in fields like data science, finance, bioinformatics, and academia." This software is provided "as is" without warranties or conditions of any kind, either expressed or implied. Features: * 2 Modes: Local Mode (stores .r files on your device) and Cloud Mode (synchronizes your projects with the cloud) * Git integration (Local Mode) * Automatic Dropbox synchronization (Local Mode) * Automatic Box synchronization (Local Mode) * AI assistant (ChatGPT and Claude, available in supported regions) * Custom keyboard shortcuts * Use a dedicated server that runs a full R installation to perform expensive mathematical calculations * Generate and view the result and plots from your R code * Syntax highlighting (comments, operators, plot functions) * Hotkeys (see Help) * Autosave (Local Mode) * No ads In-app purchase: The free version of Rlytic has a limitation of 2 projects and 2 documents in Local Mode and file upload is not supported. You can upgrade to the pro version of this app without this restriction using an in-app purchase. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula

Screenshots

Date T Calc4 screens
Rlytic R Programming Editor4 screens

Verdict

The call

The clearest difference is price: Rlytic R Programming Editor at Free against Date T Calc's $0.99. Rlytic R Programming Editor also leads on rating (5.0 vs 4.0) and update cadence (every 3 weeks vs every 17 months). Date T Calc's advantage is in-app purchases (none vs 2) and iOS requirement (12.0 vs 18.6). On review sentiment, 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

Rlytic R Programming Editor is free to download; Date T Calc costs $0.99 up front. Rlytic R Programming Editor sells 2 in-app purchases, starting at $3.99 per month. Date T Calc asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Rlytic R Programming Editor holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Rlytic R Programming Editor has 7 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Date T Calc ships an update every 17 months, Rlytic R Programming Editor every 3 weeks. The most recent releases landed on October 3, 2026 and October 14, 2026 respectively.

Scorecard7 real differences · 3 level
Date T Calc versus Rlytic R Programming Editor: the parameters behind the verdict, then further details
ParameterDate T CalcRlytic R Programming Editor
Price$0.99Free — better
Rating4.0 (1 ratings)5.0 (7 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings17 — better
Update frequencyEvery 17 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better18.6
Further details — not scored
Size1 MB27 MB
Age rating4+4+
DeveloperRoberto PanettaVerbosus.com

Customer experience

Date T Calc

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Rlytic R Programming Editor

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Date T Calc

No in-app purchases

2 purchases

Rlytic R Programming Editor

Subscriptions1
  • Upgrade: Subscription$3.991 Month
One-time1
  • Upgrade: Forever$8.99

Questions

Is Date T Calc free?
Date T Calc costs $0.99, with no in-app purchases.
Is Rlytic R Programming Editor free?
Rlytic R Programming Editor is free to download, with in-app purchases available.
Which has better reviews, Date T Calc or Rlytic R Programming Editor?
Rlytic R Programming Editor is rated higher. Date T Calc averages 4.0 out of 5 from 1 ratings, while Rlytic R Programming Editor averages 5.0 from 7 ratings.
Do Date T Calc or Rlytic R Programming Editor have ads?
Neither Date T Calc nor Rlytic R Programming Editor shows ads.
Which is updated more often, Date T Calc or Rlytic R Programming Editor?
Date T Calc ships an update every 17 months, and Rlytic R Programming Editor every 3 weeks. Most recently, Date T Calc was updated on October 3, 2026 and Rlytic R Programming Editor on October 14, 2026.

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