Comparison

CalReader vs Rota Calendar

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

Head to head
About

CalReader

Enhance your calendar's readability with customizable fonts and sizes. Easily filter events by date, calendar, or search terms, and export your data and time calculations in various formats like TEXT, CSV, or TSV. This tool is ideal for logging work or personal events and generating invoices.

Highlights
  • Customizable font and size
  • Event filtering by date, calendar, and text
  • TEXT, CSV, TSV export
  • Time calculation for billing
  • Siri Shortcuts integration
  • Dark Mode support
Features
Read full description

CalReader provides calendar readability, TEXT/CSV/TSV export, and time calculations. Choose a favorite font and size for maximum readability. Filter event listings by date range, calendar, and search text, and export listings and time calculations at TEXT, CSV, or TSV files. CalReader features time analysis and can calculate an invoice billing amount and time log for a given filter setup, total hours and rate per hour. Use Siri Shortcuts and Home Screen Quick Actions to quickly perform common actions in CalReader. CalReader can be used to log events on work/home projects. CalReader integrates iOS, macOS and CalDAV calendars including macOS Server, Google and Yahoo calendars, and provides a unique tool for journals, diaries and event logs. CalReader's unique flexibility makes for easy browsing/reading of one's history or future. The events listing view optionally displays ALL of the text of an event in an easy to read format. Calendar Filtering • Choose a date range to filter the visible events and to calculate hours and produce time logs. • Easily choose a single calendar, multiple calendars or all calendars for viewing. • Search selected calendars for text, keywords or phrases. • The search function can be used to search for times or dates. For example, find all events in the date range that start at "9:00 AM", or events on the date "11/4/26". Export Listings and Calculations • The export text generated by the Copy Text With Calculations command includes a header with the current calendar names, date range and optional search text. • Copy the filtered calendar text, with or without calculations, and then paste the text to other types of applications, or tap E-Mail Text to deliver the calendar text via e-mail. • E-mail CSV (Comma-Separated Values) or TSV (Tab-Separated Values) event listing files as attachments. • The Calculations view displays the total hours for the filtered event set and calculates the total amount using rate per hour, useful for invoices / billing. Calculations also displays the event count, average, minimum and maximum duration for the current set of events. Display Customization • Dark Mode support, and app-based dark and light styles with various color effects and calendar color indications. • Customize the font and size of the calendar text for best readability: large text is easy on the eyes, or small text for high density information. • Use pinch touch gestures to instantly change the size of the text. • Choose from various view styles using calendar colors, or no colors. • Choose to view all text of each item, or limit the number of lines (1-5) for a quick overview. Usability • Week and Month select: Previous, This, Next buttons provide fast one-tap date range selections. Use Previous and Next buttons repeatedly to move the date range window through time. • Go To Today and Go To Date actions provide quick navigation. • Speak Events uses the device’s text-to-speech capabilities to speak the currently visible events. • The Filter settings, Actions, Display, Calculations and Extras sections are neatly accessible without scrolling and searching for functions. • Tap the Done button for direct return to the main CalReader view after performing functions or settings changes. • Event listings include the duration for each event. • Events close to the current time are highlighted in the listing view with a gradient of orange displayed along the right edge, most intense for events close to the current time, fading off for events within 24 hours before and after the current time. • The filter settings of CalReader help produce complete listings of events that match a date range, calendar set, and a text phrase, and readability all of the text in the filtered set of events. • Choose to see all of the event text for all displayed events in the list, or truncated text and more items per screen. • Update Notification sound indicates a calendar update.

About

Rota Calendar

Easily plan your life around work with this shift worker's calendar. See your schedule years in advance, customize shifts with colors and emojis, and sync with your existing calendars. Share your availability with others.

Highlights
  • Scrollable calendar view
  • Generate schedules up to 5 years ahead
  • Customizable shift colors and labels
  • Sync with existing calendars
  • Share schedules via AirDrop (iOS)
  • Supports repeating and irregular shifts
Features
Read full description

Does working shifts make planning your personal life difficult? Rota Calendar helps shift workers scroll through shifts, see schedules years ahead, and plan life around work with confidence. Standard digital calendars make it hard to understand long-term shift patterns. Rota Calendar is built specifically for shift work, making it easy to see when you’re working, resting, or free — even years in advance. Enter the date of your next shift and your rotation is calculated instantly, generating your shift schedule up to five years ahead. From there, scroll smoothly through time to plan vacations, social events, family commitments, and important dates without guesswork. Designed for Real Shift Work Rota Calendar supports both repeating and irregular shift patterns. You can manually add, edit, or adjust individual shifts at any time, making it ideal for complex or changing schedules. Customize shifts with your own colors, labels, times, and emojis so different shift types are easy to recognize at a glance. Individual shifts can be edited once they are on the calendar, giving you full control over your schedule. Continuous Scroll Calendar Instead of rigid month-by-month views, Rota Calendar uses a continuous, unbroken scrolling calendar. This makes it easy to see how shifts flow across weeks and months, including where schedules overlap month boundaries. Long-term work patterns become clear and easy to understand at a glance. Sync and Compare With Your Calendar Rota Calendar syncs with calendars already on your device, including iOS, Google, and Facebook calendars. View your work shifts alongside personal events in one place, and add or edit these events directly within Rota Calendar to avoid conflicts. Simple, Clear, and Built for Individuals Rota Calendar is designed for individuals, not companies or teams. There are no accounts to create and no unnecessary features — just a clean, easy-to-use layout designed to make shift planning simple. Trusted by thousands of shift workers, Rota Calendar is used daily by people working rotating schedules, offshore roles, oil and gas, emergency services, and other non-standard work patterns. If you need a powerful yet easy-to-use shift planner that lets you scroll through years of schedules and take control of your time, Rota Calendar is built for you. Excellent - 5 Star Best app I’ve used. Extremely easy to add rota and use. Would, and have, recommended to anyone that needs a rota app. The best app I’ve got! 5 Star Of the dozens of apps I’ve got this is the best. Use it constantly and was easy to set up. I’ve moved on to a different rota but can still see my old one which is really useful. Always get a reply when I send a query and comments are taken on board. Best app out for rota - 5 Star As I work in the oil rigs 2 weeks on 2 weeks off this app was perfect for working out my rota in seconds! And worth every penny! Perfect - 5 Star This is the only shift predictor in the app store that I can actually use to plan my very random shift pattern. First class, Rota calendar - 5 Star Excellent app for offshore rotas Great great and just great - 5 Star I love this app its great for me for when i am offshore i hope they keep it on here forever Shift Cal - 5 Star Found this app so easy to use for a 3 on 3 off days and nights was done in a min forever fantastic. Rota - 5 Star This is perfect for shift workers and works well. I have a complicated shift pattern and this makes it so easy to look up future dates instantly. I rate this highly. www.facebook.com/jrwstudio www.jrw-studio.com twitter.com/jrwstudio By using this app, you agree to Apple's Standard End User License Agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

CalReader4 screens
Rota Calendar4 screens

Verdict

The call

The clearest difference is price: Rota Calendar at Free against CalReader's $6.99. Rota Calendar also leads on update cadence (every 5 days vs every 3 months) and review sentiment (65% vs 40%). CalReader's advantage is in-app purchases (none vs 10). On ads, device support and iOS requirement 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

Rota Calendar is free to download; CalReader costs $6.99 up front. Rota Calendar sells 10 in-app purchases, starting at $1.99 per month. CalReader asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Rota Calendar holds the better App Store score, 4.7 against 4.3. That said, the two scores are not equally well evidenced: Rota Calendar has 732 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 40% of CalReader's written reviews are positive against 65% of Rota Calendar's.

UpkeepUpdate frequency

CalReader ships an update every 3 months, Rota Calendar every 5 days. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

Scorecard7 real differences · 3 level
CalReader versus Rota Calendar: the parameters behind the verdict, then further details
ParameterCalReaderRota Calendar
Price$6.99Free — better
Rating4.3 (3 ratings)4.7 (732 ratings) — better
Positive reviews40.0% of reviews65.4% of reviews — better
Number of ratings3732 — better
Update frequencyEvery 3 monthsEvery 5 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.615.0 — better
Further details — not scored
Size16 MB38 MB
Age rating4+4+
DeveloperImajaJRW Studio Limited

Customer experience

CalReader

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive40.0%
Neutral0.0%
Negative60.0%

Rota Calendar

All ratings731 ratings
Positive93.0%
Neutral2.5%
Negative4.5%
Written reviews188 reviews
Positive65.4%
Neutral5.9%
Negative28.7%

Bugs and requests

CalReader

Not enough reviews yet to summarise bugs or requests.

Rota Calendar

Reported bugs

4 issues
  • Rota not properly accounting for holidays and days off
  • Inability to handle complex shift patterns beyond 9 weeks
  • Sync issues between iPad and iPhone versions
  • Day/month display not working after recent update

Requested features

6 requests
  • Ability to share rota/schedule with partner
  • More color options for shifts
  • Separate view for each month
  • Ability to add travel days to shifts
  • Integration with Apple Watch
Show 1 more
  • Shift-specific alarms/notifications

In-app purchases

None

CalReader

No in-app purchases

10 purchases

Rota Calendar

Subscriptions10
  • Rota Calendar Supporter Monthly7 Days trial$1.991 Month
  • Platinum Special Monthly7 Days trial$1.991 Month
  • Pro Monthly: Unlimited Edits7 Days trial$2.991 Month
Show 7 more
  • Gold Monthly7 Days trial$2.991 Month
  • Platinum Monthly7 Days trial$3.991 Month
  • Supporter Yearly: Backup Only7 Days trial$19.991 Year
  • Platinum Special Yearly7 Days trial$19.991 Year
  • Pro Yearly: 5 Years Cloud Sync7 Days trial$29.991 Year
  • Gold Yearly7 Days trial$29.991 Year
  • Platinum Yearly7 Days trial$39.991 Year

Questions

Is CalReader free?
CalReader costs $6.99, with no in-app purchases.
Is Rota Calendar free?
Rota Calendar is free to download, with in-app purchases available.
Which has better reviews, CalReader or Rota Calendar?
Rota Calendar is rated higher. CalReader averages 4.3 out of 5 from 3 ratings, while Rota Calendar averages 4.7 from 732 ratings.
Do CalReader or Rota Calendar have ads?
Neither CalReader nor Rota Calendar shows ads.
Which is updated more often, CalReader or Rota Calendar?
CalReader ships an update every 3 months, and Rota Calendar every 5 days. Most recently, CalReader was updated on November 1, 2026 and Rota Calendar on November 6, 2026.

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