Comparison

Custom Alerts vs GROUPS Calendar

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

Head to head
About

Custom Alerts

This app allows users to set highly customizable alerts for calendar events, ranging from minutes to weeks in advance. It supports multiple calendars and enables event creation and editing directly within the application, syncing seamlessly with the native iOS calendar.

Highlights
  • Set alerts from 0 minutes to 99 weeks ahead
  • Supports multiple calendars
  • Create and edit calendar events
  • Syncs with iOS calendar
  • Customizable alert timing
Features
Read full description

Set alerts on calendar events as close as 0 minutes ahead of the event or as long as 99 weeks ahead of the event •Supports multiple calendars •Create and edit calendar events from within Custom Alerts •Everything automatically syncs with the built-in iOS calendar app.

About

GROUPS Calendar

Features
Read full description

The best application for all those people who want to keep track of their tasks, schedules and appointments, having the possibility of sharing the content in real time with other users or with all the devices of the same user. Ideal for shift workers, families, couples or those who need to know the agenda of their relatives, friends or workmates. CALENDARS / SYNCHRONIZATION / SUBSCRIBERS - Log in with your email and enjoy self-saving in the cloud (forget about back-ups). - Share your calendar with whoever you want and give them the possibility to edit it in real time or to keep it as a spectator of your events. - Add notes associated to a calendar. - Reorder your calendars. EASY USE - Modify your calendar in two ways: (1) Quick mode or paint: Select an event from the drop-down list and click on the days to paint them with that event (2) Multiple Selection Mode: Select one or several days and perform actions in the selected range of days (add event, delete, repeat, copy, cut, paste events and / or notes) - Event menu: you can see all events of that calendar, create new ones, edit, reorder or hide them. EVENTS - Add all the events you want in the same day. - You can create all the events you need and configure them in a modular way. - Modify their appearance. - Add descriptions, images, audios and variable text to the event - Set your earnings and control your work time - Add your workday, salary and rest time and keep an exhaustive control of your schedules - Create alarms associated with that event (for that day or for the previous day). - Add customizable and recursive icons associated with a date. - Use the Birthday function and don't forget any of them NOTES - Create notes in each day and add reminders with alarms. Do not forget about appointments or important events again - Include images and audios in your notes - Mark notes as important - Use the notes, events and icons Searcher to find them easily TOP FUNCTIONS - Export your calendar from "Groups - Work & Family calendar" to Google Calendar. - Add national holidays directly from Google Calendar - See the summary of the next 30 days. - Compare different calendars: select the calendars and the month you want to compare. - Share your calendars easily with your friends as an image or PDF through WhatsApp, email, Telegram ... - Statistics: specific section where you can see the basic income, extra time paid, accumulated time, extra income and total income. Perfect to take a quick and clear control of all your earnings - Holidays: mark a day as a holiday and you can also choose to repeat it every year. FEATURED FEATURES - Easy to use. - Clear interface. - Customizable. - Different payment accounts that adapt to your needs - Fast and personalized user service - Social networks, enjoy explanatory videos, information about new updates and more visual content by joining our "Groups - Work & Family calendar" community. SUPPORT OUR WORK We are a very small team of people who make a great effort to develop "Groups - Work & Family calendar". If you like this application, you can help us continue improving and adding new features. By upgrading "Groups - Work & Family calendar" you will not only get a lot of professional premium features but also greatly support the continuous development of the app.

Screenshots

Custom Alerts4 screens
GROUPS Calendar4 screens

Verdict

The call

The clearest difference is price: GROUPS Calendar at Free against Custom Alerts's $0.99. GROUPS Calendar also leads on update cadence (every 5 days vs every 13 months). Custom Alerts's advantage is in-app purchases (none vs 12) and iOS requirement (12.0 vs 15.0). 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

GROUPS Calendar is free to download; Custom Alerts costs $0.99 up front. GROUPS Calendar sells 12 one-off in-app purchases. Custom Alerts asks for nothing beyond the download.

UpkeepUpdate frequency

Custom Alerts ships an update every 13 months, GROUPS Calendar every 5 days. The most recent releases landed on October 21, 2026 and October 8, 2026 respectively.

Scorecard4 real differences · 6 level
Custom Alerts versus GROUPS Calendar: the parameters behind the verdict, then further details
ParameterCustom AlertsGROUPS Calendar
Price$0.99Free — better
Rating3.8 (4 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings4 — better—
Update frequencyEvery 13 monthsEvery 5 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size1 MB82 MB
Age rating4+4+
DeveloperCalm Seas Software, LLCLuis Alberto Reyes Halaby

In-app purchases

None

Custom Alerts

No in-app purchases

12 purchases

GROUPS Calendar

One-time12
  • Component: Alarms Silencer$0.99
  • Component: Variable text$0.99
  • Component: Variable Schedule$0.99
Show 9 more
  • Component: Audio$1.99
  • Platinum account$1.99
  • Component: Images$2.99
  • Gold Account$2.99
  • Platinum Account$3.99
  • Silver account$4.99
  • Platinum account$6.99
  • Donation$9.99
  • Donation$19.99

Questions

Is Custom Alerts free?
Custom Alerts costs $0.99, with no in-app purchases.
Is GROUPS Calendar free?
GROUPS Calendar is free to download, with in-app purchases available.
Do Custom Alerts or GROUPS Calendar have ads?
Neither Custom Alerts nor GROUPS Calendar shows ads.
Which is updated more often, Custom Alerts or GROUPS Calendar?
Custom Alerts ships an update every 13 months, and GROUPS Calendar every 5 days. Most recently, Custom Alerts was updated on October 21, 2026 and GROUPS Calendar on October 8, 2026.

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