# Optimax vs Big Day Countdown

The clearest difference is in-app purchases: Optimax at none against Big Day Countdown's 3. Optimax also leads on iOS requirement (11.0 vs 17.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Big Day Countdown sells 3 in-app purchases, starting at $3.99 per month. Optimax asks for nothing beyond the download.

Optimax ships an update every 2 months, Big Day Countdown every 3 months. The most recent releases landed on October 15, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Optimax | Big Day Countdown |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (3 ratings)](https://appshunter.io/ios/app/big-day-countdown-widget/id6471045592/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | — | Freemium |
| Size | 26 MB | 137 MB |
| Requires iOS | **11.0** | 17.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Feediu](https://appshunter.io/developer/1561934628) | [Reena Williams](https://appshunter.io/developer/1708538764) |

## What reviewers say

### Optimax

[App page](https://appshunter.io/ios/app/optimax/id6446318553)

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

**In-app purchases:** none


### Big Day Countdown

[App page](https://appshunter.io/ios/app/big-day-countdown-widget/id6471045592)

Easily track important dates and hours with customizable widgets and reminders. Schedule alerts for birthdays, deadlines, and more, and visualize time remaining in hours, minutes, and seconds. Organize events into categories and personalize their appearance to stay on top of every significant moment.

**Highlights:** Interactive Home Screen Widgets, Customizable Alerts, Hour Tracker, Event Categorization, Personalized Appearance, Shareable Countdowns

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $3.99 | per month |
| Yearly Subscriptions | $12.99 | per year |
| Purchase Premium | $0.99 | one-time |


## Frequently asked questions

### Is Optimax free?

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

### Is Big Day Countdown free?

Big Day Countdown is free to download, with in-app purchases available.

### Do Optimax or Big Day Countdown have ads?

Neither Optimax nor Big Day Countdown shows ads.

### Which is updated more often, Optimax or Big Day Countdown?

Optimax ships an update every 2 months, and Big Day Countdown every 3 months. Most recently, Optimax was updated on October 15, 2026 and Big Day Countdown 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.*