Google Calendar vs Behavior Observation
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Google Calendar
This official app helps you manage your schedule and stay organized. It automatically adds events from Gmail, syncs across devices, and allows for shared calendars. You can also create tasks, customize views, and integrate with Google Meet for collaboration.
- Automatic event import from Gmail
- Cross-device synchronization
- Shared calendars for collaboration
- Task management alongside events
- Customizable views and themes
- Google Meet integration
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The official Google Calendar app helps you stay organized and plan your day with easy event creation, multiple calendars, customizable views, widgets, and tasks. With Google Calendar, you can: • Get events automatically added to your Calendar from Gmail, including flight, hotel, concert, and restaurant reservations. • Go from using Calendar on your iPhone, iPad, or Apple Watch to your computer without missing a beat when you’re logged into the same Google account. • Consolidate and view Google Calendar events side-by-side with other calendars on your device, including Exchange and iCloud. • Keep family, friends, and colleagues in the loop with shared calendars, so they can view, add, or modify events. • Quickly switch between month, week, and day views. • Stay on top of to-dos by creating and managing tasks alongside your events in Calendar. • Personalize your Google Calendar with light or dark mode or by color-coding your events • Always know what's next while on the go with Google Calendar on Apple Watch by customizing your watch face with Calendar complications or adding widgets. Google Calendar is part of Google Workspace, allowing you and your team to easily connect, create, and collaborate across all your favorite Google tools. You can: • Collaborate in a hybrid work environment by adding a Google Meet video call to an Calendar event • Get access to professional booking pages to easily book clients and customers*. • Schedule meetings with teammates by checking their availability or layering their calendars in a single view • Add your working location to your calendar to make it easier for your teammates to schedule meetings with you*. • Keep everyone on track for a meeting by attaching meeting notes, pre-read materials, and other documents directly to a calendar event. • Use Google Calendar with confidence knowing it’s supported by Google’s enterprise-level privacy, user safety and data security. * Requires a Google Workspace or Google One AI Premium subscription
Behavior Observation
This tool helps educators and clinicians systematically track student behavior in school settings. It allows for detailed data capture and generates professional reports to inform interventions and assessments. The app is designed for privacy and offline use, with no subscriptions or ads.
- Momentary time sampling and partial-interval recording
- Customizable session duration and intervals
- Track engaged and non-engaged behaviors
- Built-in peer comparison intervals
- Teacher-Directed Instruction (TDI) tracking
- Export PDF, CSV, and HTML reports
- Offline functionality
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Transform classroom behavior tracking with BOSS — the professional observation tool trusted by educators and clinicians nationwide. Capture systematic behavior data in minutes and turn it into clean, defensible reports that drive meaningful interventions. Built for school psychologists, ABA professionals, and special education teams conducting functional behavior assessments (FBA), IEP support, and progress monitoring. SYSTEMATIC OBSERVATION, DONE RIGHT • Momentary time sampling and partial-interval recording, the way the BOSS protocol intends • Customizable session duration and observation intervals • Track Engaged (Active / Passive) and Non-Engaged (Motor / Verbal / Passive) behaviors • Built-in peer comparison intervals for classroom-referenced context • Teacher-Directed Instruction (TDI) tracking — configurable per observation • Virtual observation mode: record camera and microphone status in remote sessions • Haptic interval cues keep your eyes on the student, not on a timer CLINICAL-GRADE CHARTS AND REPORTS — REDESIGNED • Every chart now shows value labels on every bar: read exact percentages at a glance • Color-vision-deficiency-safe palette that stays legible in print and on screen • Export polished PDF reports, spreadsheet-ready CSV, and shareable HTML • Charts render identically in the app and in your exports — what you see is what you file PRIVATE BY DESIGN • Works fully offline — sessions, data, and reports live on your device • Nothing is uploaded to any server; data leaves the app only when you choose to export it • Dark mode support throughout ONE-TIME PURCHASE • No subscriptions, no accounts, no ads
Screenshots
Verdict
The clearest difference is price: Google Calendar at Free against Behavior Observation's $59.99. Google Calendar also leads on update cadence (weekly vs every 2 months) and ratings volume (133K vs 89). Behavior Observation's advantage is in-app purchases (none vs 32) and iOS requirement (16.4 vs 18.0). On rating, review sentiment, ads 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
Google Calendar is free to download; Behavior Observation costs $59.99 up front. Google Calendar sells 22 in-app purchases, starting at $0.89 per month. Behavior Observation asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.5 for Google Calendar against 4.6 for Behavior Observation. That said, the two scores are not equally well evidenced: Google Calendar has 133K ratings behind it against 89, so its average is the more settled of the two. Written reviews are what separate them: 38% of Google Calendar's written reviews are positive against 44% of Behavior Observation's.
Google Calendar ships an update weekly, Behavior Observation every 2 months. The most recent releases landed on October 30, 2026 and October 29, 2026 respectively.
| Parameter | Google Calendar | Behavior Observation |
|---|---|---|
| Price | Free — better | $59.99 |
| Rating | 4.5 (133K ratings) | 4.6 (89 ratings) — better |
| Positive reviews | 37.5% of reviews | 44.4% of reviews — better |
| Number of ratings | 133K — better | 89 |
| Update frequency | Weekly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Best chart rank | #20 — better | #163 |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPad |
| Requires iOS | 18.0 | 16.4 — better |
| Further details — not scored | ||
| Size | 290 MB | 57 MB |
| Age rating | 4+ | 4+ |
| Developer | Google LLC | Allen Eubank |
Customer experience
Google Calendar
Behavior Observation
Bugs and requests
Google Calendar
Reported bugs
3 issues- Events not syncing properly between app and web versions
- Incorrect time zone changes for events
- New events automatically added to wrong calendar
Requested features
5 requests- Allow recurring events on specific days (e.g. 2nd Wednesday of the month)
- Add ability to set reminders for event end times
- Integrate with more email/calendar providers beyond Gmail
- Provide more customization options for event colors and icons
- Display the current date on the app icon
Behavior Observation
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Google Calendar
- 30 GB1 Month trial$0.891 Month
- 30 GB$0.891 Month
- 100 GB2 variants$1.991 Month
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- 100 GB1 Month trial2 variants$1.991 Month
- 200 GB1 Month trial2 variants$2.991 Month
- 200 GB2 variants$2.991 Month
- Google AI Plus (400 GB)$4.991 Month
- Google AI Plus (2 TB)1 Month trial2 variants$9.991 Month
- Google AI Plus (2 TB)2 variants$9.991 Month
- Google AI Pro (5 TB)2 variants$19.991 Month
- 100 GB1 Month trial$19.991 Year
- 100 GB$19.991 Year
- 100 GB1 Year trial$19.991 Year
- Google One AI Premium (2 TB)$19.991 Month
- 5 TB$24.991 Month
- 200 GB1 Year trial$29.991 Year
- 200 GB$29.991 Year
- 20 TB$99.991 Month
- 2 TB1 Month trial$99.991 Year
- 2 TB$99.991 Year
- Google AI Ultra (30 TB)$249.991 Month
- 5 TB2 variants$249.991 Year
Behavior Observation
No in-app purchases
Questions
Is Google Calendar free?
Is Behavior Observation free?
Which has better reviews, Google Calendar or Behavior Observation?
Do Google Calendar or Behavior Observation have ads?
Which is updated more often, Google Calendar or Behavior Observation?
Which is more popular, Google Calendar or Behavior Observation?
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