Juggler vs Sayscroll: Features, Pricing & Which Is Better (2026)

A side-by-side comparison of Juggler and Sayscroll — features, pricing, and ideal use cases — to help you decide which AI tool fits your workflow.

Juggler

Julian Storer

Free

A native desktop workbench for AI coding agents with branching conversation trees, inspectable tool calls and editable context.

Branching Conversation Trees: Fork the session at any point, recursively, so competing approaches and tangents run side by side without polluting the main context.
Miller Column Navigation: A Finder-style column layout lays out tool calls, item properties and nested sub-threads for long reading and editing sessions.
Transaction Inspector: Open any model transaction to see the assembled system prompt, messages, tool definitions, output, token use, timing and stop reason.
The Context Surgeon: Fold history into a new thread, move or copy items between branches, expand a branch back into its parent, and undo structural changes.
Local or Remote Sessions: Run the desktop app locally or the headless binary on the machine holding the code, then attach from the app, a browser or a phone.
Durable Sessions: Sessions are stored on disk as live-synced Yjs documents, so quits, relaunches and dropped connections do not lose the conversation.
Automatic Context Sizing: Juggler measures the full request before each call, reserves room for the answer and compacts older history before limits become an error.
Inspectable MCP Tools: Follow an MCP handoff end to end - schema offered, arguments generated, approval, result and errors - with server status, logs and per-tool filtering.
JavaScript Extension SDK: Context items, LLM loop strategies, slash commands, viewers and Pinboard tabs are extensions you can fork or replace, under a permissive Apache-2.0 SDK.

Exploring Competing Fixes: Branch a thread into two sub-threads to try different approaches to the same bug and compare results before committing.
Auditing Agent Behavior: Inspect exactly what the model received and returned when an agent makes a surprising edit to the codebase.
Remote Development: Run the server on a dev box or GPU machine where the repository lives and drive the same live session from a laptop or browser.
Long Refactors: Keep a multi-hour session alive across quits and reconnects, with the agent paused awaiting approval for its next step.
Provider Comparison: Drive Claude Code, Codex, Copilot, Gemini and local Ollama models through one interface to compare behavior on the same task.
Custom Tooling: Write JavaScript extensions that add slash commands, file viewers or new LLM loop strategies to the workbench.

Freemium

A browser-based AI teleprompter that uses real-time speech recognition to scroll your script at your actual speaking pace, in 60+ languages.

Voice-Tracked Scrolling: Real-time speech recognition fades out each word as it is spoken and keeps your place centered, replacing fixed-speed scrolling entirely.
Off-Script Handling: The prompter pauses when you improvise and automatically re-locks onto the text when you return, even if you skip to another section.
60+ Language Support: Works with English, Spanish, German, French, Swedish, Greek, and dozens more, including scripts that mix languages in the same paragraph.
Built-In Video Recorder: Record camera and mic takes directly in the teleprompter with the script overlaid on the video or shown in split-screen.
Local Recording Storage: Recordings save straight to your device and the script never leaves it; only audio is streamed for transcription.
Beam-Splitter Mirroring: Horizontal and vertical mirroring plus fullscreen output for professional hardware teleprompter screens.
Studio Reading Controls: Adjustable text size, column width, paragraph alignment, and black or white background for comfortable reading on set.
Usage-Based Billing: Only live microphone time counts toward the monthly hour allowance, and silence does not consume minutes.

YouTube Video Recording: Read a scripted video at a natural pace and cut multiple takes down to one while keeping eye contact with the camera.
Live Presentations and Demos: Jump between script sections during a live demo and have the prompter find your position each time.
Multilingual Content: Deliver a script that mixes two languages in the same paragraph without the prompter losing track.
Church and Event Media: Replace a hardware prompter and a volunteer operator with a prompter that reads along with the speaker.
Online Course Production: Record lecture segments where the speaker pauses often to find words, without a fixed scroll running ahead.
Podcast and Webinar Delivery: Keep sponsor reads and intros on script while sounding conversational rather than read.