Custom Alerts vs Eventzilla
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Set alerts from 0 minutes to 99 weeks ahead
- Supports multiple calendars
- Create and edit calendar events
- Syncs with iOS calendar
- Customizable alert timing
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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.
Eventzilla
Access event details, participate in activities, and plan your schedule. Connect with private event communities and explore venue maps. Organizers can create engaging mobile experiences.
- Join private event communities
- Access event information
- Personalized schedules and reminders
- Venue and local area maps
- See upcoming event activities
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The Eventzilla app allows you to access information about the event you’re attending and participate in related event activities. To get started, download the app and enter the email address registered on the event or enter the unique event code provided by your event organizer. • Join private event communities • Access the schedule, speakers, sponsors, and other essential event information. • Plan your time with personalized schedules and reminder alerts. • Explore venue & local area maps, including floor plans. • See what’s coming up next at the event Organizing an event? Visit https://www.eventzilla.net to create an engaging mobile experience for your event in minutes. Got a question? Send a note to help@eventzilla.net
Screenshots
Verdict
The clearest difference is price: Eventzilla at Free against Custom Alerts's $0.99. Eventzilla also leads on update cadence (monthly vs every 13 months) and ratings volume (26 vs 4). Custom Alerts's advantage is rating (3.8 vs 1.6) and review sentiment (50% vs 13%). On ads, in-app purchases 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
Eventzilla is free to download; Custom Alerts costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Custom Alerts holds the better App Store score, 3.8 against 1.6. That said, the two scores are not equally well evidenced: Eventzilla has 26 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 50% of Custom Alerts's written reviews are positive against 13% of Eventzilla's.
Custom Alerts ships an update every 13 months, Eventzilla monthly. The most recent releases landed on September 17, 2026 and June 4, 2026 respectively.
| Parameter | Custom Alerts | Eventzilla |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 3.8 (4 ratings) — better | 1.6 (26 ratings) |
| Positive reviews | 50.0% of reviews — better | 12.5% of reviews |
| Number of ratings | 4 | 26 — better |
| Update frequency | Every 13 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Best chart rank | #187 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 1 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | Calm Seas Software, LLC | Eventzilla Corporation |
Customer experience
Custom Alerts
Eventzilla
In-app purchases
Custom Alerts
No in-app purchases
Eventzilla
No in-app purchases
