Comparison

Assets for Xcode vs Sandbox Relay

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

Head to head
About

Assets for Xcode

Streamline the creation of AppIcon catalogs for all Apple platforms. This tool transforms a single 1024px icon into polished assets, offering a live canvas and real-time previews across devices. Ensure your app icons are production-ready with deterministic edits and reliable export.

Highlights
  • AppIcon catalog generation for all Apple platforms
  • Live canvas with real-time multi-platform previews
  • BraveUI color workflow with presets and hex input
  • Deterministic edits with source image preservation
  • Reliable import and export with Contents.json generation
  • Built-in guidance and stress-free operation
Read full description

Assets for Xcode is the fastest way to turn a single 1024px icon into polished AppIcon catalogs for every Apple platform. The redesigned macOS experience keeps the live canvas, BraveUI inspector, and export pipeline perfectly in sync so you can drop artwork in, preview every platform, and ship with confidence. โ€ข NEW in 5.0 โ€“ Sharper macOS canvas, centered previews, and a refreshed inspector that keeps platform toggles, adjustments, and background controls under one scroll. โ€ข Multi-platform preview board โ€“ See iPhone, iPad, Mac, Apple TV, and watchOS mockups update in real time as you nudge sliders or change backgrounds. โ€ข BraveUI color workflow โ€“ Anchored color picker with presets, gradient picker, and hex input plus a one-tap transparency swatch so icons always look right on light and dark UIs. โ€ข Deterministic edits โ€“ Crop, Resize, Auto Enhance, and pro adjustments (brightness, contrast, saturation, warmth, vignette, fade, highlights, shadows, sharpen) always reapply to the pristine source image. โ€ข Reliable import & export โ€“ Drag and drop, Finder, Files, or Photos all feed the same pipeline, and exports remember your last destination, generate perfect Contents.json files, and open the folder instantly on macOS. โ€ข Built-in guidance โ€“ Tooltips, success/error toasts, and warnings for undersized art keep every run stress-free. Tune once, preview everything, and deliver a production-ready AppIcon catalog in minutes.

About

Sandbox Relay

Features
Read full description

For developers who run Claude Code or Codex in Docker Sandbox, Sandbox Relay is the phone client for driving that agent. It is a companion, not a standalone app: it needs a broker you run, with an agent connected behind it. Kick off a task from the train, check on a long-running job from the couch, or steer the agent while you are away from your desk. Docker Sandbox runs each agent in its own isolated micro VM. A small broker you self-host sits in the middle: you send work from your phone, the broker passes it to the agent, and the streamed reply comes back. Your infrastructure, your agent. The app is just the remote. New to this setup? The app's support page explains how it works and what you need to run it. WHAT YOU CAN DO - Connect to your broker with a URL and a bearer token. Connections use HTTPS, with plain HTTP allowed only for local-network addresses. - See every connected agent at a glance, with live online/offline status. - Send the agent work and watch its reply stream in token by token. Stop a turn mid-stream, or start a fresh thread whenever you want. - When an agent goes offline, its thread stays readable as history. - See per-turn input and output token counts when the broker reports them. - Save reusable prompts as local notes, organised by hierarchical tags like #work/project/feature. Drill down by tag, copy a note straight into a thread, or link a note to the thread it came from. Notes live on your device only; they never touch the broker. WHAT YOU NEED - A broker you run, reachable from your phone (over your local network, or remotely through a tunnel or private network you control). - A coding agent, Claude Code or Codex, running in Docker Sandbox and connected to that broker. PRIVACY Sandbox Relay talks only to the broker you configure. Your access token is stored securely on your device and sent only to that broker, to authenticate you; it never goes to the developer or any third party. Your notes stay on your device and are never sent anywhere. No third-party analytics, no account to create. Note that the app streams whatever your agent outputs, verbatim.

Screenshots

Sandbox Relay4 screens

Verdict

The call

The clearest difference is price: Sandbox Relay at Free against Assets for Xcode's $4.99. Sandbox Relay also leads on iOS requirement (16.4 vs 18.0). On in-app purchases there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Sandbox Relay is free to download; Assets for Xcode costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard2 real differences ยท 5 level
Assets for Xcode versus Sandbox Relay: the parameters behind the verdict, then further details
ParameterAssets for XcodeSandbox Relay
Price$4.99Free โ€” better
Positive reviews100.0% of reviewsโ€”
Adsโ€”No
In-app purchasesNoNo
MonetizationPaidโ€”
Devicesโ€”iPhone โ€” better
Requires iOS18.016.4 โ€” better
Further details โ€” not scored
Size4 MB32 MB
Age rating4+12+
DeveloperRodrigo Dutra de OliveiraEric Boumendil

In-app purchases

None

Assets for Xcode

No in-app purchases

None

Sandbox Relay

No in-app purchases

Questions

Is Assets for Xcode free?
Assets for Xcode costs $4.99, with no in-app purchases.
Is Sandbox Relay free?
Sandbox Relay is free to download, with no in-app purchases.

Other comparisons