# My Birthday vs Cube Root Calculator SDG

The clearest difference is in-app purchases: Cube Root Calculator SDG at none against My Birthday's 1. My Birthday's advantage is ads (none vs shown) and iOS requirement (6.0 vs 11.0). On price, update cadence and device support there is nothing between them.

Both are free to download. My Birthday sells 1 one-off in-app purchase. Cube Root Calculator SDG asks for nothing beyond the download.

My Birthday ships an update every 10 months, Cube Root Calculator SDG every 12 months. The most recent releases landed on November 1, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | My Birthday | Cube Root Calculator SDG |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.5 (2 ratings)](https://appshunter.io/ios/app/my-birthday-lite/id497976582/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 10 months** | Every 12 months |
| Monetization | Free with in-app purchases | — |
| Size | 3 MB | 12 MB |
| Requires iOS | **6.0** | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Piet Jonas](https://appshunter.io/developer/288060167) | [SDG CODE DOO NIS](https://appshunter.io/developer/1343251532) |

## What reviewers say

### My Birthday

[App page](https://appshunter.io/ios/app/my-birthday-lite/id497976582)

Easily track the days remaining until your next birthday or anyone else's. Personalize the app by adding background images from your photo album through an in-app purchase.

**Highlights:** Birthday countdown, Track any birthday, Photo album background (in-app purchase), Simple interface

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Photo Background | $0.99 | one-time |


### Cube Root Calculator SDG

[App page](https://appshunter.io/ios/app/cube-root-calculator-sdg/id6741202278)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is My Birthday free?

My Birthday is free to download, with in-app purchases available.

### Is Cube Root Calculator SDG free?

Cube Root Calculator SDG is free to download, with no in-app purchases.

### Do My Birthday or Cube Root Calculator SDG have ads?

Cube Root Calculator SDG shows ads; My Birthday does not.

### Which is updated more often, My Birthday or Cube Root Calculator SDG?

My Birthday ships an update every 10 months, and Cube Root Calculator SDG every 12 months. Most recently, My Birthday was updated on November 1, 2026 and Cube Root Calculator SDG on November 8, 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.*