Comparison

CodeViewer vs Pi Relay

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

Head to head
About

CodeViewer

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支持主流编程语言代码高亮

About

Pi Relay

Features
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Pi Relay is a companion iPhone app for the Pi coding agent. It lets you connect securely to your own Pi remote-control server, browse active projects and sessions, and continue conversations from your phone. Pairing is simple: install the Pi remote-control extension on the machine running Pi, open the pairing QR code, and scan it with Pi Relay. Once paired, you can switch between remotes, view project sessions, read conversation history, send new prompts, abort running work, and request context compaction with /compact. Pi Relay is designed for users who already run Pi on their own computer or development environment and want a lightweight mobile companion for monitoring and continuing work away from the desktop. Key features: - QR-code pairing with your Pi remote-control server - Remote list with quick switching and unpairing - Project and session browsing - Conversation view with selectable and copyable messages - Runtime status and context usage display - Prompt sending, abort support, and /compact support - Live session updates while the app is active Pi Relay requires a running Pi remote-control extension/server. The extension is available at: https://github.com/zerray/pi-remote-control

Screenshots

CodeViewer4 screens
Pi Relay4 screens

Verdict

The call

The clearest difference is price: Pi Relay at Free against CodeViewer's $0.29. Pi Relay also leads on update cadence (fortnightly vs every 8 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

Pi Relay is free to download; CodeViewer costs $0.29 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

CodeViewer ships an update every 8 months, Pi Relay fortnightly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 4 level
CodeViewer versus Pi Relay: the parameters behind the verdict, then further details
ParameterCodeViewerPi Relay
Price$0.29Free — better
Update frequencyEvery 8 monthsFortnightly — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad — betteriPhone
Requires iOS17.217.0 — better
Further details — not scored
Size1 MB2 MB
Age rating4+12+
Developer健 王Zerui Zhou

In-app purchases

None

CodeViewer

No in-app purchases

None

Pi Relay

No in-app purchases

Questions

Is CodeViewer free?
CodeViewer costs $0.29, with no in-app purchases.
Is Pi Relay free?
Pi Relay is free to download, with no in-app purchases.
Do CodeViewer or Pi Relay have ads?
Neither CodeViewer nor Pi Relay shows ads.
Which is updated more often, CodeViewer or Pi Relay?
CodeViewer ships an update every 8 months, and Pi Relay fortnightly. Most recently, CodeViewer was updated on October 30, 2026 and Pi Relay on October 31, 2026.

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