RocketSim is a broad Simulator toolbox. Reely is the focused production workflow that turns your real SwiftUI feature into the video you can publish.
Mac app · Agent skill · No recording session
RocketSim is a Swiss-army companion for iOS development. Its CLI and Agent Skill can inspect the visible UI, tap, swipe, type, wait for changes, and capture screenshots or recordings; the app also covers network inspection, design comparison, deep links, physical-device testing, and more. Reely is the focused production pipeline: its Flow Spec drives registered app state and carries semantic interaction marks into cuts, camera motion, and caption timing. Pick RocketSim for agentic testing and capture breadth; pick Reely when you want the finished marketing reel authored from the feature flow.
What each workflow asks from you — and what comes out the other side.
| Capability | Reely | RocketSim |
|---|---|---|
| What you get | Finished auto-zoomed, captioned reel | Bezel / touch-indicator recording you assemble |
| How it’s made | Agent drives registered feature actions from a spec | Agent or human drives the UI; RocketSim captures it |
| Auto-zoom | Automatic, toward each step | Not automatic (manual framing) |
| Captions | Authored step copy, automatically timed | No built-in semantic callout-authoring workflow |
| Touch indicators | Rendered from real driven interactions | Yes (a RocketSim strength) |
| Debugging tools | No — reels only | Yes — network, deep links, design diff, etc. |
| Brand theming | Theme-from-app | Manual backgrounds & bezels |
| Agent / CLI | MCP + CLI for capture and reel authoring | CLI + Agent Skill for UI interaction and capture |
| Pricing | Free to create; $9.99/mo or $89.99/yr to export | Free; Personal in-app; Teams €120/seat/yr |
The practical differences you will feel every time you need a new demo.
RocketSim is a tool you keep open all day: let an agent inspect and interact with the running app, record clips, inspect network traffic, test deep links, compare designs, and work with physical devices. Reely stays focused on video production: it captures repeatable feature flows and can also compose free-form teasers, with a Mac editor available for refinement. They overlap at capture, but the jobs remain different enough that many teams could use both.
RocketSim no longer requires a human to perform every flow: its agent can find visible elements, interact with them, wait for UI changes, and record the result. Reely’s difference is downstream meaning. Its declarative Flow Spec drives registered SwiftUI actions, captures pre-action geometry and labeled timing marks, then reuses those marks to author the camera, cuts, and callout windows.
RocketSim gives an agent an external accessibility-driven control loop around the running Simulator, alongside its broader debugging toolkit. Reely uses a feature registry and in-process state mutations, so every authored action is already a semantic editorial event. RocketSim is stronger as an everyday agentic development companion; Reely is stronger when those actions must become a directed, branded reel.
$9.99/month or $89.99/year. One plan with every feature included.
Free plan; Personal Pro at the local Mac App Store price; Teams at €10 per seat/month, billed as €120 annually.
For producing marketing reels, yes. RocketSim is the broader agentic development companion: it can drive and capture the UI, then help with debugging and testing. Reely specializes in turning a semantic feature flow into the finished directed reel.
Reely renders interactions from the real driven flow, so taps and gestures are visible in context. RocketSim’s touch indicators are a manual recording feature.
RocketSim’s skill can inspect, interact with, and record the running app. Reely adds an editorial pipeline: semantic flow steps become camera targets, cut points, and timed callouts, producing a finished marketing reel rather than only a capture.
Absolutely. Many teams keep RocketSim for day-to-day inspection and use Reely specifically to produce polished demo reels.
Describe the flow. Get a directed, branded, captioned video of your real iOS feature.
Free to create. Subscribe only when you export. From $9.99/month.