Comparison

Eventium vs Geoid Altimeter

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

Head to head
About

Eventium

This calendar app offers a revolutionary way to view your schedule, displaying actual events instead of just dots. It provides multiple view options, integrated task management, and advanced event customization. Widgets are available for quick access to upcoming events.

Highlights
  • Month, week, and day views
  • Vertical scrolling month view
  • Integrated tasks within calendar
  • Calendar widgets for home screen
  • Event customization (alerts, repeats, colors)
  • Cut, copy, and paste events
  • Supports multiple calendar accounts
Features
Read full description

Introducing Eventium, a calendar app revolution! Eventium allows you to see actual events, not just dots! We now have Calendar Widgets! Add the Eventium widget to your Home Screen to see the events you have now, next and more! * iOS 15+ * This feature requires an in-app purchase Features: ● Month View Full screen month, swipe left and right to navigate ● Vertical Scrolling Month View Swipe up, swipe down, see everything ● Week View Layout options for portrait and landscape Horizontal or vertical layout Configurable start day ● Day View Configuration options for colors, layouts and more ● List View See and search all your events in a vertically scrolling list ● Year View Only available on tablet devices ● Integrated Tasks Within Your Calendar Group due, overdue and floating tasks in a single 'event' in your calendar, grouped by task list or all tasks * This feature requires an in-app purchase Invite contacts or even just an email address to events Add multiple alerts to events Add multiple repeat rules to events Set day background colors and images Print the year, month, week or day views Cut, Copy and Paste events Mark events as complete View event attachments Override the calendar color on an event Supports calendars in iCloud, Google, Exchange, Yahoo and any calendar that can be synced to the device Delete Event As Spam — long tap option will allow a spam event to be deleted without notifying the sender * Supports iOS 15 and above on iPhone, iPad and iPod Touch

About

Geoid Altimeter

Features
Read full description

Geoid Altimeter is an elevation tracking tool built for field professionals. It applies high-precision geoid models to your smartphone's GPS ellipsoidal height to display a practical "orthometric height" (elevation above mean sea level). Try all features completely free for the first 30 days. Experience the convenience directly on your smartphone. [ Key Features ] - Orthometric Height (H = h − N): Converts the raw GPS ellipsoidal height using national or global geoid models. - High-Resolution Elevation (DEM): Reads terrain elevation for your current location or any pinned point — no need to physically stand there. - Pin & Address Search: Drop a pin or search an address to check the elevation anywhere on the map. - Favorites & CSV Export: Save sites with custom names and export all values (h, N, H, DEM) as CSV. - Model Comparison: View your local model alongside the global EGM96 reference. - One-Tap Copy, Screenshot Share, Transparent Satellite/OSM Overlay, and Compass. [ Supported High-Precision Regions ] Geoid models (orthometric height correction): Japan (Geoid 2024 / GSI), United States (GEOID18 / NOAA-NGS), Canada (CGG2013a / NRCan), New Zealand (NZGeoid2016 / LINZ), Switzerland (CHGeo2004 / swisstopo). High-resolution elevation (DEM): Japan (GSI, 5 m laser mesh), United States (USGS 3DEP), Switzerland (swisstopo), France (IGN RGE ALTI, 1 m). For every other country and region, the app provides seamless worldwide coverage using the global EGM96 geoid and global terrain-elevation data. [ New in 1.4.0 ] - Works beyond coverage: pre-load the national geoid model around you, and elevations stay on that model when the network goes. - Always says which model answered — the national service live, a value saved nearby, or the global EGM96 standing in. - Stand-still averaging: hold still and get a mean with its spread, instead of a single fix that scatters by metres. - Antenna height: set the pole length or how high you hold the phone, and it is subtracted from every GNSS height. - Height difference and grade (% and 1:n) between two saved points, a one-page PDF elevation record, and NGVD29 readings for US drawings levelled before NAVD88. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Eventium4 screens
Geoid Altimeter4 screens

Verdict

The call

The clearest difference is price: Geoid Altimeter at Free against Eventium's $3.99. Geoid Altimeter also leads on update cadence (weekly vs fortnightly). On ads, in-app purchases, 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

Geoid Altimeter is free to download; Eventium costs $3.99 up front. Eventium sells 2 one-off in-app purchases and Geoid Altimeter sells 4 in-app purchases, starting at $14.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Eventium ships an update fortnightly, Geoid Altimeter weekly. The most recent releases landed on September 23, 2026 and August 29, 2026 respectively.

Scorecard2 real differences · 8 level
Eventium versus Geoid Altimeter: the parameters behind the verdict, then further details
ParameterEventiumGeoid Altimeter
Price$3.99Free — better
Rating4.7 (378 ratings) — better—
Positive reviews85.6% of reviews—
Number of ratings378 — better—
Update frequencyFortnightlyWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.0 — better
Further details — not scored
Size50 MB65 MB
Age rating4+4+
Developerjohnhair.comQAEE CONPUUTENG

Bugs and requests

Eventium

Reported bugs

3 issues
  • Duplicate holidays appearing
  • Inconsistent event time display
  • Disappearing past events

Requested features

4 requests
  • Dark mode option
  • Improved task management and integration
  • Shared calendars and family/group features
  • Better widget and Apple Watch support

Geoid Altimeter

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

Eventium

One-time2
  • Tasks, Reminders, To Do Lists$0.99
  • Calendar Widgets$1.99
4 purchases

Geoid Altimeter

Subscriptions4
  • PRO Monthly1 Month trial$14.991 Month
  • month$15.001 Month
  • PRO Yearly1 Month trial$150.001 Year
Show 1 more
  • year$150.001 Year

Questions

Is Eventium free?
Eventium costs $3.99, and also offers in-app purchases.
Is Geoid Altimeter free?
Geoid Altimeter is free to download, with in-app purchases available.
Do Eventium or Geoid Altimeter have ads?
Neither Eventium nor Geoid Altimeter shows ads.
Which is updated more often, Eventium or Geoid Altimeter?
Eventium ships an update fortnightly, and Geoid Altimeter weekly. Most recently, Eventium was updated on September 23, 2026 and Geoid Altimeter on August 29, 2026.

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