# Custom Alerts > Customizable calendar event alerts with advanced scheduling and direct event management. (iPhone/iPad app by Calm Seas Software, LLC.) - Source: https://appshunter.io/ios/app/custom-alerts/id682227805 (this page in markdown: same URL + `.md`) - Developer: [Calm Seas Software, LLC](https://appshunter.io/developer/1527599491) - Category: Productivity, Utilities - Price: $0.99 - Rating: 3.75/5 from 4 App Store ratings · 4 written reviews indexed - Age rating: 4+ - Requires: iOS 12.0 · 1 MB - Languages: English - Released: 2013-08-07 - Data updated: 2026-08-21 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/custom-alerts/id682227805/reviews.md ## What is Custom Alerts? 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. ## Key features - Set alerts from 0 minutes to 99 weeks ahead - Supports multiple calendars - Create and edit calendar events - Syncs with iOS calendar - Customizable alert timing ## Chart rankings - #198 in Top Paid · Productivity (US App Store) ## Recent user reviews (4 of 4) All indexed reviews: https://appshunter.io/ios/app/custom-alerts/id682227805/reviews.md ### 5/5 — Can set alerts when YOU want them. *2021-11-18, version v2.10* This is a very useful app. If you want to set an alert reminder the night before an appointment or you need three hours to prepare for something (not 2) or you know you will need more than a 1 week reminder to shop and mail a gift to get it there, this is for you. There was an issue with numbers and time intervals not showing but the developer has fixed that. You can modify any Calendar event notification by tapping on the event in this app or you can create a new event and time in this app, then tap the + to choose and set the custom alert interval. If you need to add Repeat, Invitees, etc., tap Edit Event from the Set Alert page to get the full iOS/iPadOS event edit page. It all goes to the iOS/iPadOS Calendar. Very helpful app! ### 1/5 — Can’t see to use it *2021-06-10, version v2.9* When I go into the event to update the alert I cannot see anything other than set alert. On part of the screen I can “feel” a dial spinning which I assume is changing the time. But I can’t see anything. App is basically useless ### 5/5 — Great app *2013-11-21, version 1.0* I love this app, it's such a helping hand for me ### 2/5 — Calendar alert app does not fully integrate *2013-08-18, version 1.0* App allows custom alert settings which are much better than the constraining ones in Calendar, but does not fully integrate: you need to go into i-calendar, find your appointment, then go into the app, pull it up and set alert. Once done your choice will appear in i-calendar, but no adjustments are possible, you need to go back in the app . Very cumbersome, think I will delete it. ## Frequently asked questions about Custom Alerts ### What is the price of Custom Alerts? Custom Alerts is a paid application, available for a one-time purchase of $0.99. This grants you full access to all its features without any recurring fees. ### Does Custom Alerts have ads? No, Custom Alerts does not contain advertisements. As a paid app, it offers an ad-free experience for its users. ### What devices is Custom Alerts compatible with? Custom Alerts is designed for Apple devices and is compatible with iPhone, iPad, and iPod touch. It requires iOS. ### How often is Custom Alerts updated? The app was last updated on February 26, 2023, with version v2.11. While specific update frequency isn't detailed, this indicates ongoing support and development. ### What is the age rating for Custom Alerts? Custom Alerts has an age rating of 4+, making it suitable for a wide range of users. This rating suggests content appropriate for young children. ### How does Custom Alerts sync with my calendar? Everything created or managed within Custom Alerts automatically syncs with your device's built-in iOS calendar app. This ensures your events are always up-to-date across both platforms. ### Can I create new calendar events within Custom Alerts? Yes, you can create and edit calendar events directly from within the Custom Alerts application. This provides a convenient way to manage your schedule without switching apps. ### What is the earliest and latest alert I can set with Custom Alerts? You can set alerts as close as 0 minutes ahead of an event, meaning immediate notifications. The furthest you can set an alert is up to 99 weeks in advance, offering extensive planning flexibility. ## Version history (last 5 releases) ### v2.12 — 2026-04-27 Updates app for iOS 26 and fixes bug where the bottom of calendar names sometimes got cut off. ### v2.11 — 2023-02-26 Fixes bug where iOS 16 users received an error when trying to add a new event. Fixes bug where the first change to an alert on a new event was not saved. ### v2.10 — 2021-11-14 Fixed bug where some screen elements were invisible on devices in dark mode. ### v2.9 — 2020-12-30 User interface enhancements. ### 2.7.1 — 2017-09-15 fixed bug that prevented adding a new alert to a recurring event ## Apps similar to Custom Alerts | App | Rating | Price | Category | | --- | --- | --- | --- | | [PDF Editor－Scan & Converter](https://appshunter.io/ios/app/pdf-editorscan-and-converter/id6450445023) | 4.7 (148) | Free | Productivity | | [Tana Outliner](https://appshunter.io/ios/app/tana-outliner/id6499428869) | 4.0 (50) | Free | Productivity | | [Ready Time](https://appshunter.io/ios/app/ready-time/id1412470365) | 4.7 (10) | Free | Productivity | | [Snipd \| AI Podcast Player](https://appshunter.io/ios/app/snipd-ai-podcast-player/id1557206126) | 4.7 (1,139) | Free | Productivity | | [Beyond Identity](https://appshunter.io/ios/app/beyond-identity/id1501552162) | 4.2 (39) | Free | Productivity | | [Hawaiian Electric Mobile](https://appshunter.io/ios/app/hawaiian-electric-mobile/id1215083853) | 2.1 (73) | Free | Productivity | ## Related topics [custom alerts](https://appshunter.io/ios/topics/custom-alerts) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-21.*