Comparison

Alto Shared Time Calendar vs Simple Vertical Calendar Notes

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

Head to head
About

Alto Shared Time Calendar

Easily create a shared calendar that shows your availability as busy or free. Share this summary calendar with others to let them know when you're available, or view their availability to coordinate plans.

Highlights
  • Create summary Busy/Free calendar
  • Share availability with others
  • View others' availability
  • Integrates all your calendars
  • Coordinate plans easily
Features
Read full description

Share when you are free, without showing what you are doing. Alto Calendar builds one Busy/Free calendar out of the calendars you already keep. It carries only the blocks: when you are busy, and when you are not. No titles, no locations, no guests, no notes. Then you share that one calendar with your partner, your family or a friend, using Apple's own calendar sharing. They see when you are free. They never see what you were doing. They can make one too, so you can both see when everyone is actually free. - one Busy/Free calendar, built from any calendars you pick - event details never leave your device: only the blocks are shared - see today and tomorrow as a summary or a timeline, with everyone's blocks merged - declined invitations and anything marked free are ignored, so you are not shown as busy when you are not - all-day events are ignored by default, and you can turn that on - refreshes in the background as your calendars change - ask Siri “When is Sarah free?”, or check from Spotlight and Control Center - invite from Contacts; the person you invite is shown how to share back - no account, no sign-up, no server. Your calendars stay in iCloud, where they already are Free to share with one person. Alto Calendar Pro, one purchase, shows everyone who shares with you and counts down on the Lock Screen.

About

Simple Vertical Calendar Notes

This app offers a clear and intuitive way to manage your daily schedule. Easily switch between a monthly grid and a chronological list view, with features like holiday support and flexible recurring events.

Highlights
  • Switchable grid and list views
  • Holiday calendar support
  • Flexible recurring events
  • Powerful search function
  • Intuitive design
  • Color-coded events
Features
Read full description

A new calendar app designed for both clarity and ease of use. Seamlessly switch between a monthly grid view and a vertical scrolling list view. Make your schedule management more intuitive and comfortable. 【Key Features】 ■ Switchable Display Formats ・Grid View: A traditional calendar view that shows your entire month's schedule at a glance. ・List View: A vertical scrolling view that allows you to see your appointments in chronological order, making it easy to see what's ahead. ■ Holiday Calendar Support ・Automatically displays holidays for your country. You can easily add them from the calendar settings. ■ Flexible Recurring Events ・Set up complex recurring events with ease, such as "every Tuesday," "on the 15th of every month," or "every two weeks." ■ Powerful Search Function ・Quickly find past and future appointments with a keyword search. ■ Intuitive Design and Usability ・A simple and sophisticated design. Color-code your events to visually manage your personal and work schedules. 【Recommended for people who】 ・Find the default calendar app to be insufficient. ・Want to manage their schedule digitally with the feel of a paper planner. ・Want to manage both work and personal appointments in a single app. ・Want a clear list view to keep track of future appointments. Start your new schedule management experience with this app!

Screenshots

Alto Shared Time Calendar4 screens
Simple Vertical Calendar Notes4 screens

Verdict

The call

The clearest difference is review sentiment: Simple Vertical Calendar Notes at 50% against Alto Shared Time Calendar's 0%. Simple Vertical Calendar Notes also leads on in-app purchases (none vs 4) and ratings volume (6 vs 2). Alto Shared Time Calendar's advantage is rating (5.0 vs 4.7). On price, update cadence, ads and monetization model 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

Both are free to download. Alto Shared Time Calendar sells 4 one-off in-app purchases. Simple Vertical Calendar Notes asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Alto Shared Time Calendar holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 2 and 6 respectively. Written reviews complicate that: 0% of Alto Shared Time Calendar's written reviews are positive against 50% of Simple Vertical Calendar Notes's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Alto Shared Time Calendar ships an update every 5 days, Simple Vertical Calendar Notes weekly. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

Scorecard4 real differences · 6 level
Alto Shared Time Calendar versus Simple Vertical Calendar Notes: the parameters behind the verdict, then further details
ParameterAlto Shared Time CalendarSimple Vertical Calendar Notes
PriceFreeFree
Rating5.0 (2 ratings) — better4.7 (6 ratings)
Positive reviews0.0% of reviews50.0% of reviews — better
Number of ratings26 — better
Update frequencyEvery 5 days — betterWeekly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.017.0 — better
Further details — not scored
Size13 MB30 MB
Age rating4+4+
DeveloperSystem Operator LLCNaoyuki Rikiji

Customer experience

Alto Shared Time Calendar

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

Simple Vertical Calendar Notes

All ratings6 ratings
Positive83.3%
Neutral16.7%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

In-app purchases

4 purchases

Alto Shared Time Calendar

One-time4
  • A thank you$2.99
  • A thank you$4.99
  • Alto Calendar Pro$5.99
Show 1 more
  • A thank you$9.99
None

Simple Vertical Calendar Notes

No in-app purchases

Questions

Is Alto Shared Time Calendar free?
Alto Shared Time Calendar is free to download, with in-app purchases available.
Is Simple Vertical Calendar Notes free?
Simple Vertical Calendar Notes is free to download, with no in-app purchases.
Which has better reviews, Alto Shared Time Calendar or Simple Vertical Calendar Notes?
Alto Shared Time Calendar is rated higher. Alto Shared Time Calendar averages 5.0 out of 5 from 2 ratings, while Simple Vertical Calendar Notes averages 4.7 from 6 ratings.
Do Alto Shared Time Calendar or Simple Vertical Calendar Notes have ads?
Neither Alto Shared Time Calendar nor Simple Vertical Calendar Notes shows ads.
Which is updated more often, Alto Shared Time Calendar or Simple Vertical Calendar Notes?
Alto Shared Time Calendar ships an update every 5 days, and Simple Vertical Calendar Notes weekly. Most recently, Alto Shared Time Calendar was updated on October 27, 2026 and Simple Vertical Calendar Notes on October 28, 2026.

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