# Advent Calendar OpenGLEffects vs Advent App

The clearest difference is review sentiment: Advent App at 75% against Advent Calendar OpenGLEffects's 16%. Advent App also leads on rating (4.6 vs 2.0) and update cadence (every 10 days vs every 24 months). Advent Calendar OpenGLEffects's advantage is in-app purchases (none vs 2) and ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Advent App sells 2 one-off in-app purchases. Advent Calendar OpenGLEffects asks for nothing beyond the download.

Advent App holds the better App Store score, 4.6 against 2.0. That said, the two scores are not equally well evidenced: Advent App has 226 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 16% of Advent Calendar OpenGLEffects's written reviews are positive against 75% of Advent App's.

Advent Calendar OpenGLEffects ships an update every 24 months, Advent App every 10 days. The most recent releases landed on October 16, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Advent Calendar OpenGLEffects | Advent App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (4 ratings)](https://appshunter.io/ios/app/advent-calendar-opengleffects/id479608586/reviews) | **[4.6 (226 ratings)](https://appshunter.io/ios/app/advent-app/id756869205/reviews)** |
| Number of ratings | 4 | **226** |
| Positive reviews | 15.6% of reviews | **75.2% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 24 months | **Every 10 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 113 MB | 82 MB |
| Requires iOS | **11.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Daniel Kiefer](https://appshunter.io/developer/386426588) | [PINTUMO UG (haftungsbeschraenkt)](https://appshunter.io/developer/531781739) |

## What reviewers say

### Advent Calendar OpenGLEffects

[App page](https://appshunter.io/ios/app/advent-calendar-opengleffects/id479608586)

Experience a visually stunning Advent Calendar with dynamic OpenGL effects. Discover interactive 3D galaxies and moving particle art each day, accompanied by festive music. Some doors require user interaction to reveal their surprises.

**Highlights:** OpenGL effects, 3D galaxies, Moving particle art, Interactive elements, Christmas music

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Advent App

[App page](https://appshunter.io/ios/app/advent-app/id756869205)

Create and share personalized digital Advent calendars. Add videos, songs, vouchers, or quotes to each door. Fill and update your calendar at your own pace, with optional reminders to keep you on track.

**Highlights:** Personalize doors with video, song, or quotes, Digital calendar, fill and update anytime, Optional daily fill reminders, No account creation needed, Share via custom link (WhatsApp, SMS, mail), Share with unlimited recipients

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Ad-Free Calendar | $2.99 | one-time |
| 1 Pro Calendar | $7.99 | one-time |

**What reviewers like**

- 👍 Easy to use and create
- 🎁 Fun and thoughtful gift
- 💖 Loved by recipients
- 🌟 Great for customized advents
- ✨ No ads (for some users)

**What reviewers complain about**

- 😞 Link doesn't work in groups
- 💸 Charged even when advertised as free
- 😔 Many users report it doesn't open
- ❌ Videos/YouTube not working
- 💰 Unexpected costs for gifting

**Reported bugs**

- Internal service error screen
- Calendar not working on Facebook groups
- App won't open
- Link doesn't work when posted in Facebook groups
- Days not opening even after the date has passed

**Requested features**

- Landscape version for iPad
- Ability to add videos from phone
- Change number patterns/designs
- Allow calendars for other months/year-round use
- Save work when not on the app


## Frequently asked questions

### Is Advent Calendar OpenGLEffects free?

Advent Calendar OpenGLEffects is free to download, with no in-app purchases.

### Is Advent App free?

Advent App is free to download, with in-app purchases available.

### Which has better reviews, Advent Calendar OpenGLEffects or Advent App?

Advent App is rated higher. Advent Calendar OpenGLEffects averages 2.0 out of 5 from 4 ratings, while Advent App averages 4.6 from 226 ratings.

### Do Advent Calendar OpenGLEffects or Advent App have ads?

Advent App shows ads; Advent Calendar OpenGLEffects does not.

### Which is updated more often, Advent Calendar OpenGLEffects or Advent App?

Advent Calendar OpenGLEffects ships an update every 24 months, and Advent App every 10 days. Most recently, Advent Calendar OpenGLEffects was updated on October 16, 2026 and Advent App on October 24, 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.*