Comparison

Calendar Schedule vs Observify

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

Head to head
About

Calendar Schedule

Features
Read full description

In Calendar Schedule you can define templates of days with activities and tasks, and then assign the days to your calendar. Key Features: Lightning Fast Scheduling! Stop entering the same events manually. Create blueprint schedules and assign them to days, weeks, or even entire months at a glance. Seamless Calendar Sync! Everything you plan is automatically synced to your device’s native calendar. See your activities in your favorite calendar apps and widgets perfectly. Reusable Checklists (Card View) Need a grocery list, morning routine, or packing list? Activities can be treated as reusable checklists, ensuring you never miss a step. It's a great way to establish routines and add structure to your day. Parents can create calendars and share them with their kids, allocating time to do homework, reminding them what time to go to school, and not to forget their gym bag in the morning.

About

Observify

This app helps you build and monitor personal habits. You can create custom habits, set goals, and track progress with detailed charts and insights. Your data remains private and stored only on your device.

Highlights
  • Create and quantify habits
  • Set and exceed habit goals
  • Attach metrics and tags to habits
  • Personalizable habit occurrences
  • Insightful habit charts
  • On-device data storage
Read full description

Observify is a habit tracker that helps you: - Create, quantify and track your habits. - Set and exceed goals for your habits. - Create metrics and attach them to your habits. - Create tags and attach them to your habits. - Quickly create personalizable occurrences of your habits with a single tap. - Explore charts of your habits and metrics to get useful insights. Your data doesn't leave your phone.

Screenshots

Calendar Schedule4 screens
Observify4 screens

Verdict

The call

The clearest difference is in-app purchases: Observify at none against Calendar Schedule's 1. Calendar Schedule's advantage is device support (3 vs 1). On price, update cadence, ads 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

Both are free to download. Calendar Schedule sells 1 one-off in-app purchase. Observify asks for nothing beyond the download.

UpkeepUpdate frequency

Calendar Schedule ships an update every 8 months, Observify every 5 months. The most recent releases landed on October 12, 2026 and October 7, 2026 respectively.

Scorecard2 real differences · 8 level
Calendar Schedule versus Observify: the parameters behind the verdict, then further details
ParameterCalendar ScheduleObservify
PriceFreeFree
Rating—4.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 8 monthsEvery 5 months — better
AdsNoNo
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better16.0
Further details — not scored
Size60 MB2 MB
Age rating4+4+
DeveloperDan Olov HyllengrenHassene BEN SALEM

In-app purchases

1 purchases

Calendar Schedule

One-time1
  • Unlock calendar restrictionsFree
None

Observify

No in-app purchases

Questions

Is Calendar Schedule free?
Calendar Schedule is free to download, with in-app purchases available.
Is Observify free?
Observify is free to download, with no in-app purchases.
Do Calendar Schedule or Observify have ads?
Neither Calendar Schedule nor Observify shows ads.
Which is updated more often, Calendar Schedule or Observify?
Calendar Schedule ships an update every 8 months, and Observify every 5 months. Most recently, Calendar Schedule was updated on October 12, 2026 and Observify on October 7, 2026.

Other comparisons