# WisdomTail vs Big Days

The clearest difference is price: WisdomTail at Free against Big Days's $0.99. WisdomTail also leads on iOS requirement (15.5 vs 17.0). Big Days's advantage is update cadence (weekly vs every 6 weeks). On ads, in-app purchases and device support there is nothing between them.

WisdomTail is free to download; Big Days costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

WisdomTail ships an update every 6 weeks, Big Days weekly. The most recent releases landed on September 27, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | WisdomTail | Big Days |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| 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 | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Weekly** |
| Monetization | — | Paid |
| Size | 263 MB | 3 MB |
| Requires iOS | **15.5** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 9+ |
| Developer | [Future Zeal Limited](https://appshunter.io/developer/1808913436) | [刚 王](https://appshunter.io/developer/1380585947) |

## What reviewers say

### WisdomTail

[App page](https://appshunter.io/ios/app/wisdomtail/id6744688982)

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is WisdomTail free?

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

### Is Big Days free?

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

### Do WisdomTail or Big Days have ads?

Neither WisdomTail nor Big Days shows ads.

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

WisdomTail ships an update every 6 weeks, and Big Days weekly. Most recently, WisdomTail was updated on September 27, 2026 and Big Days on September 23, 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.*