# Big Days vs HabitBrix

The clearest difference is price: HabitBrix at Free against Big Days's $0.99. HabitBrix also leads on device support (3 vs 1) and iOS requirement (14.0 vs 17.0). Big Days's advantage is in-app purchases (none vs 3). On update cadence and ads there is nothing between them.

HabitBrix is free to download; Big Days costs $0.99 up front. HabitBrix sells 3 in-app purchases, starting at $1.99 per month. Big Days asks for nothing beyond the download.

Big Days ships an update weekly, HabitBrix every 9 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Big Days | HabitBrix |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/big-days-date-countdown/id6759002825/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 76.9% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 9 days |
| Monetization | Paid | — |
| Size | 3 MB | 56 MB |
| Requires iOS | 17.0 | **14.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 9+ | 4+ |
| Developer | [刚 王](https://appshunter.io/developer/1380585947) | [Fernando Mendes](https://appshunter.io/developer/1878625841) |

## What reviewers say

### Big Days

[App page](https://appshunter.io/ios/app/big-days-date-countdown/id6759002825)

A minimalist app to track important future and past dates with a clean interface. Easily manage events, add notes, and receive local reminders. Offers home screen widgets for quick access.

**Highlights:** Count down and count up for events, Highlight events happening today, Edit, pin, and add notes to events, Home screen widgets for progress, Local reminders with repeat rules, iCloud sync across devices

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

**In-app purchases:** none


### HabitBrix

[App page](https://appshunter.io/ios/app/habitbrix-habit-tracker/id6759487422)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HabitBrix Monthly | $1.99 | per month |
| HabitBrix Yearly | $3.99 | per year |
| HabitBrix Lifetime | $8.99 | one-time |


## Frequently asked questions

### Is Big Days free?

Big Days costs $0.99, with no in-app purchases.

### Is HabitBrix free?

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

### Do Big Days or HabitBrix have ads?

Neither Big Days nor HabitBrix shows ads.

### Which is updated more often, Big Days or HabitBrix?

Big Days ships an update weekly, and HabitBrix every 9 days. Most recently, Big Days was updated on November 5, 2026 and HabitBrix on October 31, 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.*