Comparison

Codex by Lloyd Barnes vs Slow

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Codex by Lloyd Barnes

This app offers a rapid day-of-week calculation and a reference tool for various card stacks. It's designed for practice and quick lookups with customizable feedback options for different environments.

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

About

Slow

Features
Read full description

Slo-Mo is a brand new magic app that lets you record an ultra visual slow motion vanish of any object! Super easy to do. No complicated steps or confusing instructions. Just point, record, and watch the magic happen. Works in all languages. Doesn't matter where you're from or what language you speak. Vanish any object! All you need is your phone and a tripod or some way to keep your phone steady. That's it. Download Slo-Mo today.

Screenshots

Codex by Lloyd Barnes4 screens
Slow3 screens

Verdict

The call

The clearest difference is price: Slow at $19.99 against Codex by Lloyd Barnes's $49.99. Codex by Lloyd Barnes's advantage is update cadence (every 9 days vs every 4 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Codex by Lloyd Barnes costs $49.99 and Slow $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Codex by Lloyd Barnes ships an update every 9 days, Slow every 4 months. The most recent releases landed on September 19, 2026 and September 14, 2026 respectively.

Scorecard2 real differences · 8 level
Codex by Lloyd Barnes versus Slow: the parameters behind the verdict, then further details
ParameterCodex by Lloyd BarnesSlow
Price$49.99$19.99 — better
Rating4.0 (1 ratings) — better
Positive reviews100.0% of reviews
Number of ratings1 — better
Update frequencyEvery 9 days — betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaid
DevicesiPhoneiPhone
Requires iOS17.6 — better18.0
Further details — not scored
Size2 MB4 MB
Age rating4+4+
DeveloperLloyd BarnesJoshua Riley

In-app purchases

None

Codex by Lloyd Barnes

No in-app purchases

None

Slow

No in-app purchases

Questions

Is Codex by Lloyd Barnes free?
Codex by Lloyd Barnes costs $49.99, with no in-app purchases.
Is Slow free?
Slow costs $19.99, with no in-app purchases.
Do Codex by Lloyd Barnes or Slow have ads?
Neither Codex by Lloyd Barnes nor Slow shows ads.
Which is updated more often, Codex by Lloyd Barnes or Slow?
Codex by Lloyd Barnes ships an update every 9 days, and Slow every 4 months. Most recently, Codex by Lloyd Barnes was updated on September 19, 2026 and Slow on September 14, 2026.

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