Comparison

Pi Relay vs Skulk Operator

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

Head to head
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

About

Skulk Operator

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Skulk Operator is the native remote control for a user-owned Skulk distributed AI cluster. Pair the app with a cluster to: β€’ View cluster health, topology, memory utilization, and node status. β€’ Browse the model catalog and the cluster’s canonical model store. β€’ Inspect model availability across nodes and preview recommended placement. β€’ Place models on compatible compute and stop running instances. β€’ Chat with ready text models while keeping conversation history on this device. β€’ Track downloads, placement, loading, and other operator activity. β€’ Review connection status and paired devices. The normal remote path uses an end-to-end encrypted relay. Foxlight’s relay forwards encrypted traffic without access to operator commands, model details, prompts, or responses. Credentials use platform secure storage, and conversation history remains device-local. Skulk Operator does not download or run AI models on your iPhone or iPad. A separately installed and running Skulk cluster is required. Skulk is free and open-source software.

Screenshots

Pi Relay4 screens
Skulk Operator4 screens

Verdict

The call

Pi Relay and Skulk Operator are too close to call on the numbers: across 5 compared parameters β€” price, ads, in-app purchases and device support among them β€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

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

ScorecardNo meaningful differences
Pi Relay versus Skulk Operator: the parameters behind the verdict, then further details
ParameterPi RelaySkulk Operator
PriceFreeFree
Update frequencyFortnightlyβ€”
AdsNoNo
In-app purchasesNoNo
DevicesiPhoneiPhone, iPad β€” better
Requires iOS17.016.4 β€” better
Further details β€” not scored
Size2 MB50 MB
Age rating12+12+
DeveloperZerui ZhouFoxlightAI Inc.

In-app purchases

None

Pi Relay

No in-app purchases

None

Skulk Operator

No in-app purchases

Questions

Is Pi Relay free?
Pi Relay is free to download, with no in-app purchases.
Is Skulk Operator free?
Skulk Operator is free to download, with no in-app purchases.
Do Pi Relay or Skulk Operator have ads?
Neither Pi Relay nor Skulk Operator shows ads.

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