Comparison

PIECO vs Codex Relay

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

Head to head
About

PIECO

Monitor and control laser gas mixing and regulation systems in real-time. Access live data on gas consumption and input pressure, and adjust settings to optimize cutting quality and speed.

Highlights
  • Real-time gas consumption monitoring
  • Live input pressure information
  • Adjustable gas mixing ratio
  • Control cutting quality and speed
  • Application support requests
Features
Read full description

Enter the world of digital piezo technology! Whether controlling the HOERBIGER LasGAM - laser gas mixer or receiving real-time information from the LasGAR - laser gas regulator, with PIECO the evolution in laser cutting is at your fingertips. MAIN FEATURES: - Inform You want to know your current gas consumption from the LasGAM or your input pressure at the LasGAR? No problem. PIECO provides you with this and other information live. - Control Maintain full control over the quality and speed of your cut. You are able to adjust the mixing ratio of the LasGAM during your cut and thus always achieve the perfect cut. Application support: Would you like support to get the best out of your machine? Then send us a request.

About

Codex Relay

Manage your Codex workflow remotely from your phone. Track active threads, send prompts, review output, and respond to requests. Designed for developers to stay connected to their work without being at their desk.

Highlights
  • Follow Codex conversations remotely
  • Send prompts and follow-up instructions
  • Respond to approval and input requests
  • Attach images for context
  • Review workspace and thread activity
  • Manage relay server state
  • Check usage statistics
Features
Read full description

Codex Relay brings your Codex workflow to your phone. Connect to your local Codex Relay server and keep track of active threads, responses, approvals, and workspace activity without staying at your desk. Send follow-up prompts, review assistant output, attach images for context, and respond when Codex needs input before it can continue. Built for developers who use Codex as part of real work, Codex Relay keeps the mobile experience focused, fast, and close to the terminal workflow. Key features: - Follow Codex conversations from your phone - Send prompts and follow-up instructions - Respond to approval and input requests - Attach images as context - Review workspace and thread activity - Manage connected relay server state - Check usage - Designed for local developer workflows Codex Relay requires a running Codex Relay server on your computer. Start the server with `npx codex-relay@latest`, then connect your device over your local network. GitHub: https://github.com/gronxb/codex-relay Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

PIECO4 screens
Codex Relay4 screens

Verdict

The call

The clearest difference is review sentiment: PIECO at 100% against Codex Relay's 63%. PIECO also leads on iOS requirement (14.2 vs 16.4). Codex Relay's advantage is update cadence (every 9 days vs every 3 months) and chart position (#98 vs unranked). On price, ads, in-app purchases and monetization model 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

PIECO ships an update every 3 months, Codex Relay every 9 days. The most recent releases landed on October 9, 2026 and October 12, 2026 respectively.

Scorecard4 real differences · 7 level
PIECO versus Codex Relay: the parameters behind the verdict, then further details
ParameterPIECOCodex Relay
PriceFreeFree
Rating—4.2 (56 ratings) — better
Positive reviews100.0% of reviews — better63.2% of reviews
Number of ratings—56 — better
Update frequencyEvery 3 monthsEvery 9 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
Best chart rank—#98 — better
DevicesiPhone, iPodiPhone, iPad
Requires iOS14.2 — better16.4
Further details — not scored
Size23 MB118 MB
Age rating4+17+
DeveloperHOERBIGER Flow Control GmbHKang Sungyu

Customer experience

PIECO

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Codex Relay

All ratings56 ratings
Positive78.6%
Neutral3.6%
Negative17.9%
Written reviews19 reviews
Positive63.2%
Neutral0.0%
Negative36.8%

In-app purchases

None

PIECO

No in-app purchases

None

Codex Relay

No in-app purchases

Questions

Is PIECO free?
PIECO is free to download, with no in-app purchases.
Is Codex Relay free?
Codex Relay is free to download, with no in-app purchases.
Do PIECO or Codex Relay have ads?
Neither PIECO nor Codex Relay shows ads.
Which is updated more often, PIECO or Codex Relay?
PIECO ships an update every 3 months, and Codex Relay every 9 days. Most recently, PIECO was updated on October 9, 2026 and Codex Relay on October 12, 2026.

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