# Duality - Best and Worst — Your Best and Worst of today

> Your Best and Worst of today (iPhone/iPad app by Sky Apperley.)

- Source: https://appshunter.io/ios/app/duality/id1020932407 (this page in markdown: same URL + `.md`)
- Developer: [Sky Apperley](https://appshunter.io/developer/441992511)
- Category: Health & Fitness, Lifestyle
- Price: Free
- Age rating: 4+
- Requires: iOS 16.1 · 2 MB
- Languages: American English
- Released: 2015-08-05
- Data updated: 2025-12-25
- User reviews in markdown: https://appshunter.io/ios/app/duality/id1020932407/reviews.md

## What is Duality?

Duality helps you to keep a track the best moment of the day, and the worst moment of the day. Avoid the things that make you unhappy, and do more of the things that make you feel good.
• Your data is private and is only stored on your phone.
• Set daily reminders to enter your best and worst.
• Customise best and worst icons.
• Export your data as a CSV file.
• Choose a single best and worst to share via social media.
• Duality is completely free with all features unlocked.


## Version history (last 5 releases)

### 1.0.4 — 2023-10-04

Refreshed look.

### 1.0.3 — 2018-04-27

This app has been updated by Apple to display the Apple Watch app icon.

Improved usability
Better support for iPhone X screen
Added support for using a hardware keyboard on iPhone X
Temporarily removed all ads

### 1.0.2 — 2015-12-16

Fixed an export bug.

### 1.0.1 — 2015-12-05

Better handling of crossing timezones. OS9 compatibility. Delete button display fixed.

### 1.0.0 — 2015-08-05

No release notes.

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## More apps by Sky Apperley

- [Countdown & Meeting Timer](https://appshunter.io/ios/app/countdown-and-meeting-timer/id1057232387)
- [The Ami Collection](https://appshunter.io/ios/app/the-ami-collection/id1441757671)

All apps by Sky Apperley: https://appshunter.io/developer/441992511

## Related topics

[sky apperley](https://appshunter.io/ios/topics/sky-apperley) · [duality lite](https://appshunter.io/ios/topics/duality-lite) · [duality](https://appshunter.io/ios/topics/duality)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2025-12-25.*