Color Calendar vs OBSRV
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Color Calendar
Visualize your existing iPhone Calendar events with a vibrant, customizable display. Choose from 24 colors and various display styles to personalize your schedule. Changes sync instantly between this app and your iPhone Calendar.
- Colorful event display
- 24 color options
- Customizable display styles
- Syncs with iPhone Calendar
- No ads or costs
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Color Calendar is a very colorful view of your existing iPhone Calendar. Simply open the app and all of your Calendar Events are displayed in color. • Enjoy a colorful view of your events. Pick from 24 different colors. • Customize how your events are displayed to fit your style. Choose from Traditional, Fun, Time, Bold, and Verbose. • Use the iPhone Calendar and Color Calendar. Changes made in one are immediately available in the other; or configure one for work and one for personal if you would like to separate your events. • No ads, no costs.
OBSRV
Capture location-specific reminders and notes for businesses you visit. Remember details about your experiences or specific people you want to reconnect with.
- Location-based notes
- Business-specific reminders
- Personalized memory aid
- Easy note creation
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Ever wanted to write a reminder for a business you visit? Such as what you had or if you want to talk to someone specifically again? Well OBSRV is here to help you remember those notes! Now you can write notes specific to locations!
Screenshots
Verdict
Color Calendar and OBSRV both sit at 5.0 stars, but that hides the real split: 100% of OBSRV's written reviews are positive against 80% of Color Calendar's. OBSRV also leads on device support (3 vs 1) and iOS requirement (11.0 vs 18.0). On price, rating, ratings volume and update cadence 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Color Calendar against 5.0 for OBSRV. Both are backed by a comparable volume of ratings — 3 and 5 respectively. Written reviews are what separate them: 80% of Color Calendar's written reviews are positive against 100% of OBSRV's.
Color Calendar ships an update every 3 weeks, OBSRV every 2 weeks. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.
| Parameter | Color Calendar | OBSRV |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) | 5.0 (5 ratings) |
| Positive reviews | 80.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 3 | 5 — better |
| Update frequency | Every 3 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 62 MB |
| Age rating | 4+ | 4+ |
| Developer | Paul Hangas | Benjamin Spurlock |
Customer experience
Color Calendar
OBSRV
In-app purchases
Color Calendar
No in-app purchases
OBSRV
No in-app purchases
Questions
Is Color Calendar free?
Is OBSRV free?
Which has better reviews, Color Calendar or OBSRV?
Do Color Calendar or OBSRV have ads?
Which is updated more often, Color Calendar or OBSRV?
Other comparisons
