# Codex by Lloyd Barnes — Next Generation Mindreading

> Day of week calculator and card stack reference tool for practice and lookup. (iPhone/iPad app by Lloyd Barnes.)

- Source: https://appshunter.io/ios/app/codex-by-lloyd-barnes/id6759010874 (this page in markdown: same URL + `.md`)
- Developer: [Lloyd Barnes](https://appshunter.io/developer/1876359952)
- Category: Entertainment, Utilities
- Price: $49.99
- Rating: 4.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.6 · 2 MB
- Languages: American English
- Released: 2026-02-24
- Data updated: 2026-06-04
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/codex-by-lloyd-barnes/id6759010874/reviews.md

## What is Codex by Lloyd Barnes?

Codex is a fast day-of-week calculator and card-stack reference tool designed for practice, rehearsal, and quick lookup. It provides accurate results with flexible output options so you can use it in different environments.

Day of Week Calculator
- Enter or speak a date and Codex displays the correct weekday.
- Optional haptic feedback and optional sounds can be enabled for hands-free or silent operation.

Customisation
- Configure haptic strength, timing, and patterns.
- Choose optional tones and volume.

Card & Stack Tools
- Quick reference and practice utilities for common stacks and arrangements (e.g., Mnemonica, Aronson, Si Stebbins, Eight Kings, and more).
- High-contrast, readable interface for rapid lookup.

Codex is built to be quick, reliable, and easy to use—whether you’re practicing at home or reviewing information on the go.

## Key features

- Day of week calculator
- Speak dates for weekday display
- Optional haptic feedback
- Customizable tones and volume
- Reference for common card stacks
- High-contrast interface

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/codex-by-lloyd-barnes/id6759010874/reviews.md

### 4/5 — Gonzo

*2026-03-09*

App needs to have time not in military time in addition every time I open app I need to keep putting homescree up …. Overall nice app….👍🏼

## Frequently asked questions about Codex by Lloyd Barnes

### What is Codex by Lloyd Barnes?

Codex by Lloyd Barnes is a utility application that functions as a fast day-of-week calculator and a reference tool for various card stacks. It is designed for practice, rehearsal, and quick lookup of information.

### How does the day of week calculator in Codex work?

You can enter or speak a date into Codex, and it will display the correct weekday. The app offers optional haptic feedback and sounds for hands-free or silent operation.

### What card stacks can I find in Codex?

Codex provides quick reference and practice utilities for common card stacks and arrangements, including Mnemonica, Aronson, Si Stebbins, and Eight Kings, among others.

### Can I customize the feedback in Codex?

Yes, Codex allows for extensive customization. You can configure haptic strength, timing, and patterns, as well as choose optional tones and their volume.

### What is the price of Codex by Lloyd Barnes?

Codex by Lloyd Barnes is a paid application priced at $49.99.

### What devices does Codex by Lloyd Barnes support?

Currently, Codex by Lloyd Barnes is supported on iPhone devices.

### How often is Codex by Lloyd Barnes updated?

The latest version of Codex by Lloyd Barnes is 1.3, and it was last updated on March 13, 2026. This suggests a relatively recent update cycle.

### Does Codex by Lloyd Barnes have ads?

No, Codex by Lloyd Barnes does not contain advertisements. It is a paid application without any ad interruptions.

## Version history (last 3 releases)

### 1.3 — 2026-03-13

Fixes issue with language recognition for certain languages. 
Added link to Facebook group.

### 1.2 — 2026-03-09

Language support for French, German, Italian, Spanish & Korean. 
Fixes time zones affected certain days depending on country of origin. 
Fixes crash that happened when exiting out of Performance mode in Core.

### 1.0 — 2026-02-24

No release notes.

## Related topics

[codex by lloyd barnes](https://appshunter.io/ios/topics/codex-by-lloyd-barnes)

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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 2026-06-04.*