RSSum Field Guide
iOS · iPadOS Reddit setup Model guide Gateway setup

14 screens · 99 annotated controls · 8 AI options · 2 gateway guides

A visual walkthrough of RSS, Reddit, and YouTube feeds, the Summarize feature, Q&A, the embedded podcast player, and settings. Select any numbered target to see exactly what it does.

Browse all 14 screens
Inside the guide
  1. 01Read
  2. 04Reddit
  3. 08Understand
  4. 11Listen
  5. 12Configure
  6. +Connect AI

Video walkthrough

What RSSum adds

Read, summarize,
then listen.

The guide below shows the controls. These are the two workflows to know before you start.

Summarize

Turn feeds into useful overviews.

Summarize RSS articles, Reddit posts and their comments, YouTube videos, and podcast episodes. Use individual summaries, an overall summary, or ask questions across the saved sources.

Embedded podcast player

Listen without leaving RSSum.

Generate a grounded podcast from your saved reading, then play the episode inside RSSum with playback controls. Podcast episodes can be built from articles, Reddit discussions, and other supported feed content.

Interactive walkthrough

The app, annotated

Tap a marker on the screenshot or choose a control from the list. Use the arrow keys to move through the guide.

Screen 01 of 14

Your reading desk

Choose a source, scan the feed, then act on everything in it.

RSSum feed screen
RSS feed and subscription navigation

Reddit connection

Connect Reddit
without errors.

RSSum connects through a Reddit app that you create. The app type and redirect URI must match these instructions exactly or Reddit sign-in will fail.

  1. 01

    Choose installed app

    When creating the app in Reddit's developer settings, select installed app as the app type.

  2. 02

    Use the exact redirect URI

    Enter redapp://auth exactly as shown. The value is case-sensitive and must not end with a slash.

    redapp://auth
  3. 03

    Paste the Client ID into RSSum

    Copy the Client ID shown under your Reddit app's name and paste it into RSSum. Do not paste a client secret.

  4. 04

    Check for invisible formatting

    Remove any leading or trailing whitespace. redapp://auth/ is not valid because it includes a trailing slash.

AI providers

Choose the right model
for the job.

RSSum can use local models, cloud APIs, browser-based AI, or a Mac gateway. The main differences are how much content each option can process, where that processing happens, and what it costs.

On deviceGood default

Apple Local

Runs entirely on your device. It is private, free, and needs no API key, but it requires a device that supports Apple Intelligence.

  • Best for articles and smaller Reddit posts
  • Limited context window for very large threads
  • Offers to reroute when the content is too large
Apple cloudLarge context

Apple Cloud

Uses Apple Private Cloud Compute. It is free and can handle much more content than Apple Local, making it better for large Reddit threads and long documents.

  • Available on iOS 27
  • Unavailable on iOS 26
  • Supports podcast creation
Cloud APIBest all-rounder

Gemini

Uses Google’s Gemini API with your own API key. It is fast, inexpensive, and has a very large context window.

  • Well suited to full subreddits and long time ranges
  • Supports large inputs and podcast creation
  • Heavy personal use cost about $2 in one month; actual cost varies
Built-in browserNo API key

Web AI

Uses ChatGPT or Gemini through the app’s built-in browser. Sign in with your normal account, including a free account, without configuring an API key.

  • No separate API usage charges
  • Slower than using an API directly
  • Processing happens through the selected web service
On deviceExperimental

LiteRT Local

Runs a downloaded Gemma model on your device. It is private and free after download, but uses device storage, memory, and processing power.

  • No API key or cloud processing
  • Smaller context than large cloud models
  • Large requests may need to be rerouted
On deviceBring a model

CoreAI MLX Local

Lets you choose and run a free local MLX model. It gives you more control while keeping processing on the device.

  • Private and configurable
  • Uses device storage, memory, and compute
  • Context depends on the model and device
Mac gatewayFor subscribers

Codex / Summarize

Uses the Codex or ChatGPT account already signed in on your Mac. It is useful if you already subscribe and want to avoid separate per-request API billing.

  • The Mac must be on and available
  • Your account’s normal usage limits still apply
  • Supports large inputs and podcast creation
Mac gatewayTemporary

Apple PCC Gateway

Lets an iOS 26 device use the Apple Private Cloud Compute model through a Mac running the latest beta software.

  • Uses the same model as Apple Cloud
  • The Mac must stay on and reachable
  • Expected to be removed after iOS 27 is publicly available

Recommended setup

Start local. Reroute when needed.

On an Apple Intelligence device, keep Apple Local enabled for smaller tasks and use Gemini for larger ones. RSSum detects when content exceeds the local context window and lets you choose a larger provider.

Why so many options?

The app is still being tested.

The current list is intentionally broad while local models, cloud models, and gateway workflows are evaluated. It will be simplified before release, and some temporary or experimental options may be removed.

Free option

Web AI

Use a free ChatGPT or Gemini account through the built-in browser when you do not want an API key or usage bill.

YouTube

The transcript is the source

RSSum always sends the video’s captions or transcript to the selected provider. Local models favor privacy; cloud models generally offer more context and speed.

Podcast creation

Large-context providers only

Podcast creation needs more context and is currently available with Gemini, Apple Cloud, and providers that run through a Mac gateway.

Mac-powered providers

Connect the app
to your Mac.

These providers run through a companion service on your Mac. Your iPhone or iPad sends the prompt over your local network; the Mac forwards it to the selected AI service and returns only the answer.

Route 01

Codex / Summarize

Use the Codex account already signed in on your Mac. Summarize prepares the request, Codex generates the answer, and the open RSSum Mac app securely relays it back to your iPhone or iPad.

Before you begin
  • A Mac and iPhone/iPad on the same network
  • Node.js with npm installed on the Mac
  • Codex CLI installed and signed in
  • RSSum installed on the Mac
1RSSumiPhone or iPad
2RSS Mac bridgePort 8790 · secret protected
3SummarizeLocal daemon · port 8787
4Codex CLISigned-in Mac account
  1. 01

    Prepare Codex on the Mac

    Install the Codex CLI if needed, then sign in. The gateway uses this Mac’s Codex login and its associated usage limits.

    codex login
  2. 02

    Download and run the one-time setup

    Download the setup script directly from this guide. It installs Summarize, creates private tokens, configures the daemon, starts it, and prints the iPad connection details.

    Download Codex / Summarize setupsetup-rssreader-codex-summarize.sh

    Then run this command in Terminal:

    chmod +x ~/Downloads/setup-rssreader-codex-summarize.sh && ~/Downloads/setup-rssreader-codex-summarize.sh

    The full connection details are also saved to ~/.summarize/rssreader-gateway-info.txt.

  3. 03

    Keep RSSum open on the Mac

    The Summarize daemon works locally, while the Mac app provides the network bridge your iPhone or iPad connects to. Both the Mac and the mobile device must remain on the same local network.

  4. 04

    Enter the connection on iPhone or iPad

    Open Settings → Summary Source → Codex / Summarize, then use the values printed by the setup script.

    Mac host or IPLeave blank firstUses automatic discovery. Enter the Mac’s LAN IP only if discovery fails.
    Bridge port8790Default port created by the setup script.
    Bridge secret/passFrom the MacCopy the generated bridge secret exactly.
  5. 05

    Test, then summarize

    Tap Test Connection. When it reports Connected, Codex / Summarize can power article summaries, Reddit summaries, Overall Summary, and Q&A.