Comparison

Vantage Calendar vs COR

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

Head to head
About

Vantage Calendar

This app offers a visually engaging way to manage your schedule and to-do lists. It uses colorful cues, stickers, and "stacks" to help you understand your day at a glance. Integrated to-dos can be easily scheduled by dragging and dropping them onto dates.

Highlights
  • Visual cues (colors, stickers, book covers)
  • Summarize days with 'Stacks'
  • Integrated to-do lists in notebooks
  • Drag and drop to-dos to dates
  • Natural language input
  • Syncs with multiple calendars
Features
Read full description

Who says calendars can't be fun? Vantage takes the mundane out of scheduling. In part because it works well and is easy to use, but also because of useful visual cues like colors, stickers, book covers and stacks. Visual cues makes understanding a long list of stuff easier, and can help you understand your daily life better. Sort of like doodles in a physical book can help you remember notes. Picked by Apple as the "App of the Day" on the App Store in 2019. Stacks Stacks are a really cool way of summarising days. It reduces clutter and visualises how much is on your plate. The higher the stack, the more things you got planned. Tap any stack to peek it’s contents. Integrated To-Dos To-dos live in little notebooks right next to the main timeline. To set a due date, just drag a to-do and drop it on a date. You also get to customise your books with a pre-set book cover, or even a photo from your camera roll. Color Tags and Stickers Visual cues makes long lists of stuff so much easier to read. Pick from a variety of funky stickers or color tags to let events either pop or feel connected. Features in summary - Natural Language Input - Custom Repeat Rules - Custom Alerts - Syncs with iOS Calendar, Google Calendar, Exchange, Facebook - Use colors, stickers and fonts as search tags, super useful! - Useful widget calendar in notification centre - Keep To-do lists in Notebooks - Drag and drop To-dos to due dates - Location through Apple or Google Maps - Inbox for event invites - Week numbers - Absolutely no ads Featured by the App Store in 'Stay on Schedule', as the 'Free App of the Week' and in 'New Apps We Love'. Pay a visit to our web or twitter if you're curious for more. http://twitter.com/vantage_by_44 http://vantageby44.com "A More Visual Way To View Your Calendar" - Lifehacker "Vantage [...] gives you the best view of everything you've got going on" - Gizmodo "It breaks the mold and offers an entirely new way to organize your life. Plus, it’s very easy on the eyes." - AppAdvice Our terms of use can be found at https://vantageby44.com/terms-of-use.

About

COR

Features
Read full description

COR-ID is your all-in-one solution for storing and safeguarding sensitive information. Here’s what makes it essential: ● Your Digital Key Access your vital information instantly with a single, unique digital identifier. ● Seamless Device Integration Automatically sync and update health metrics from connected devices like glucometers, blood pressure monitors, and more. ● Controlled Data Sharing Share only what is necessary — and only with your explicit permission. Whether it is a doctor, company, or another user, your data remains in your control. ● Unified Data Hub Consolidate data from multiple sources into one structured, easy-to-navigate space. ● Privacy-First by Design Your data belongs to you. COR-ID cannot access your Data. All information is stored with advanced encryption for maximum security. ● Secure Password Manager Safely store passwords for accounts, services, and documents — all encrypted and accessible only to you. Why COR-ID and not a Password Manager Unlike traditional password managers, COR-ID handles depersonalized data — meaning no names, emails, or personally identifiable information. Even when data is processed, transferred, or stored, no one can trace it back to you without your explicit consent. What You Gain 1. Privacy protection, even when participating in research or data sharing; 2. Zero risk of personal data leaks, since encryption keys are never shared or stored by the developer; 3. Complete control over who can access your information — and when — with your approval only. [Jurisdiction Statement] This app is intended to be used with the DBP‑6273B blood pressure monitor, which has received FDA clearance for use in the United States. Use in other countries may not be authorized. Please check with your local health authorities. [Disclaimer] Knowledge popularization should not be regarded as any diagnostic service or advice, and should not replace the doctor's clinical diagnosis; It is not excluded that there are omissions, errors and ambiguities in popular science knowledge. Please refer to it carefully. COR-ID software does not recommend any medication. If treatment is required, follow your doctor's advice. COR-Software LLC shall not be liable for any adverse consequences arising from failure to follow medical advice.

Screenshots

Vantage Calendar4 screens
COR4 screens

Verdict

The call

The clearest difference is price: Vantage Calendar at Free against COR's $0.99. Vantage Calendar also leads on update cadence (fortnightly vs every 6 weeks) and device support (3 vs 1). On ads, in-app purchases 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

Vantage Calendar is free to download; COR costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Vantage Calendar ships an update fortnightly, COR every 6 weeks. The most recent releases landed on October 31, 2026 and October 27, 2026 respectively.

Scorecard3 real differences · 7 level
Vantage Calendar versus COR: the parameters behind the verdict, then further details
ParameterVantage CalendarCOR
PriceFree — better$0.99
Rating4.3 (1.8K ratings) — better—
Positive reviews81.5% of reviews—
Number of ratings1.8K — better—
Update frequencyFortnightly — betterEvery 6 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better16.0
Further details — not scored
Size58 MB83 MB
Age rating4+17+
DeveloperFortyfour ABCOR-Software

Bugs and requests

Vantage Calendar

Reported bugs

4 issues
  • App crashing on launch
  • Inability to restore purchases
  • Sync issues causing data loss
  • Recurring tasks not working as expected

Requested features

6 requests
  • Widgets
  • Apple Watch app
  • More color and theme options
  • Ability to see full month view
  • Ability to add contacts to events
Show 1 more
  • Improved search functionality

COR

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Vantage Calendar

No in-app purchases

None

COR

No in-app purchases

Questions

Is Vantage Calendar free?
Vantage Calendar is free to download, with no in-app purchases.
Is COR free?
COR costs $0.99, with no in-app purchases.
Do Vantage Calendar or COR have ads?
Neither Vantage Calendar nor COR shows ads.
Which is updated more often, Vantage Calendar or COR?
Vantage Calendar ships an update fortnightly, and COR every 6 weeks. Most recently, Vantage Calendar was updated on October 31, 2026 and COR on October 27, 2026.

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