# Daymark vs Big Day

The clearest difference is update cadence: Daymark at every 2 days against Big Day's every 2 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Daymark sells 1 one-off in-app purchase and Big Day sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Daymark ships an update every 2 days, Big Day every 2 weeks. The most recent releases landed on November 9, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | Daymark | Big Day |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/big-day-countdown-timer/id6799796713/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 2 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 40 MB | 5 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Sebastian Sjoqvist](https://appshunter.io/developer/1883347846) | [Damien Asseya](https://appshunter.io/developer/878472983) |

## What reviewers say

### Daymark

[App page](https://appshunter.io/ios/app/daymark-dates-that-matter/id6760224226)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support, iPhone Duo support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Daymark Premium | $4.99 | one-time |


### Big Day

[App page](https://appshunter.io/ios/app/big-day-countdown-timer/id6799796713)

Track important dates with a visually appealing countdown. See your upcoming events on your Home Screen, Lock Screen, and Apple Watch without opening the app. Count down to future events or count up from past milestones.

**Highlights:** Home Screen widgets (all sizes), Lock Screen widgets, Live Activities for real-time countdowns, Count up or count down functionality, Recurring events and weekday-only counting, Customizable alerts and categories, Apple Watch complications

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Countdown Pro | $5.99 | one-time |


## Frequently asked questions

### Is Daymark free?

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

### Is Big Day free?

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

### Do Daymark or Big Day have ads?

Neither Daymark nor Big Day shows ads.

### Which is updated more often, Daymark or Big Day?

Daymark ships an update every 2 days, and Big Day every 2 weeks. Most recently, Daymark was updated on November 9, 2026 and Big Day on November 13, 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.*