# NumDays2 vs Birthday Boom

The clearest difference is update cadence: Birthday Boom at every 3 days against NumDays2's every 68 months. Birthday Boom also leads on iOS requirement (15.1 vs 17.6). On price, rating, ratings volume and ads there is nothing between them.

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 NumDays2 against 5.0 for Birthday Boom. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

NumDays2 ships an update every 68 months, Birthday Boom every 3 days. The most recent releases landed on June 1, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | NumDays2 | Birthday Boom |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/numdays2/id903944099/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/birthday-boom/id6744579087/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 68 months | **Every 3 days** |
| Monetization | Free | Free |
| Size | 1 MB | 23 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Hlib Ustymenko](https://appshunter.io/developer/817064714) | [Maxim Indykov](https://appshunter.io/developer/1808276057) |

## What reviewers say

### NumDays2

[App page](https://appshunter.io/ios/app/numdays2/id903944099)

This app helps you keep track of important dates like birthdays, anniversaries, and holidays. It offers customizable countdowns and smart categorization to ensure you never miss a significant event.

**Highlights:** Countdown to birthdays, anniversaries, holidays, Organize events with smart tags, Quick overview of upcoming events, Full-screen countdown view, Customizable event tracking (years, months, days, seconds)

**Features:** macOS Compatibility

**In-app purchases:** none


### Birthday Boom

[App page](https://appshunter.io/ios/app/birthday-boom/id6744579087)

Easily track important dates for friends and family. Receive timely reminders to help you prepare thoughtful messages and gifts. Stay connected and never miss a special occasion again.

**Highlights:** Add birthdays quickly, Receive timely reminders, Track friends' and family's special days, Prepare messages and gifts, Stay connected

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is NumDays2 free?

NumDays2 is free to download, with no in-app purchases.

### Is Birthday Boom free?

Birthday Boom is free to download, with no in-app purchases.

### Which has better reviews, NumDays2 or Birthday Boom?

NumDays2 and Birthday Boom are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do NumDays2 or Birthday Boom have ads?

Neither NumDays2 nor Birthday Boom shows ads.

### Which is updated more often, NumDays2 or Birthday Boom?

NumDays2 ships an update every 68 months, and Birthday Boom every 3 days. Most recently, NumDays2 was updated on June 1, 2026 and Birthday Boom on June 4, 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.*