# Calendar 365 vs Osmo Projector

The clearest difference is rating: Osmo Projector at 4.4 against Calendar 365's 2.9. Osmo Projector also leads on in-app purchases (none vs 1). Calendar 365's advantage is ads (none vs shown) and update cadence (every 2 weeks vs every 2 months). On price and review sentiment there is nothing between them.

Both are free to download. Calendar 365 sells 1 one-off in-app purchase. Osmo Projector asks for nothing beyond the download.

Osmo Projector holds the better App Store score, 4.4 against 2.9. That said, the two scores are not equally well evidenced: Calendar 365 has 51 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 28% of Calendar 365's written reviews are positive against 33% of Osmo Projector's.

Calendar 365 ships an update every 2 weeks, Osmo Projector every 2 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Calendar 365 | Osmo Projector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.9 (51 ratings)](https://appshunter.io/ios/app/calendar-365/id386310028/reviews) | **[4.4 (7 ratings)](https://appshunter.io/ios/app/osmo-projector/id1502489790/reviews)** |
| Number of ratings | **51** | 7 |
| Positive reviews | 27.6% of reviews | **33.3% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 1 MB | 111 MB |
| Requires iOS | **4.3** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [NO WOO KYOUNG](https://appshunter.io/developer/352275899) | [Tangible Play](https://appshunter.io/developer/799157444) |

## What reviewers say

### Calendar 365

[App page](https://appshunter.io/ios/app/calendar-365/id386310028)

This app offers a comprehensive calendar experience with lunar views, contact birthday reminders, and yearly overviews. Users can personalize the background and view the clock directly within the app. It also provides iPad support.

**Highlights:** Lunar View, Contact birthday and anniversary support, Yearly View, Customizable background image, Clock display, iPad Support

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calendar 365 Upgrade | $1.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 👍 Large, clear numbers
- 👍 Good for basic calendar needs
- 👍 Useful for lunar calendar
- 👍 Customizable backgrounds

**What reviewers complain about**

- 🐛 Crashes frequently
- 🐛 Slow performance
- 🐛 Ads obscure content
- 🐛 Incorrect holiday dates
- 🐛 Incompatible with iOS updates

**Reported bugs**

- App crashes immediately after opening
- App freezes when choosing events in settings
- Lost all data after update
- App does not open after update
- Holidays are on the wrong dates

**Requested features**

- Add ability to flip month to month
- View all events by month
- Keep holiday dates correctly
- View in landscape mode
- Better clock


### Osmo Projector

[App page](https://appshunter.io/ios/app/osmo-projector/id1502489790)

This tool enhances remote learning by allowing you to share physical notes and your iPad screen with others. It requires specific hardware and an iPad tablet to function.

**Highlights:** Remote learning assistance, Share physical notes, Share iPad screen, AirPlay compatibility, Conferencing app integration

**In-app purchases:** none


## Frequently asked questions

### Is Calendar 365 free?

Calendar 365 is free to download, with in-app purchases available.

### Is Osmo Projector free?

Osmo Projector is free to download, with no in-app purchases.

### Which has better reviews, Calendar 365 or Osmo Projector?

Osmo Projector is rated higher. Calendar 365 averages 2.9 out of 5 from 51 ratings, while Osmo Projector averages 4.4 from 7 ratings.

### Do Calendar 365 or Osmo Projector have ads?

Osmo Projector shows ads; Calendar 365 does not.

### Which is updated more often, Calendar 365 or Osmo Projector?

Calendar 365 ships an update every 2 weeks, and Osmo Projector every 2 months. Most recently, Calendar 365 was updated on November 1, 2026 and Osmo Projector on November 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*