Product Growth

How to Create an Explainer Video for Your App (Free Method)

A 60-second explainer beats paragraphs on your landing page. Here is the free Pain-Solution script method—and when to record with Cubix Capture so the demo looks premium without a keyframe timeline.

May 19, 2026
14 min read
C
Cubix Team

You launched the app. Traffic hits the landing page—and bounces.

Visitors will not read three screens of feature bullets. They want to see the outcome in under a minute. A tight explainer is the highest-leverage marketing asset you can ship without an agency invoice.

Ship a polished demo faster: Cubix Capture frames your app at capture time—auto-zoom on clicks, smooth cursor, staged backgrounds—so your explainer is share-ready when you hit stop. Get started free · Windows · Mac

This guide is the $0 path (script + native record + light edit). For full SaaS demo structure, see How to Record a SaaS Product Demo That Converts.

A side-by-side visual of a boring text-heavy landing page vs a dynamic one with an engaging app explainer video player

Step 1: Write the Pain-Solution script (under 60 seconds)

Treat the video like a salesperson, not a README.

BeatTimeJob
Hook0–10sName the pain in their words
Solution10–40sShow the one "Aha!" workflow
CTA40–60sOne action: install, start trial, book demo

Word budget: ~130 spoken words. One core workflow—not every settings screen.

Example hook: "Still chasing invoice status in three different tabs?"
Example CTA: "Start your free trial—link in the description."


Step 2: Record the app (free capture paths)

PlatformFree optionCaveat
iPhoneControl Center → Screen RecordingUI looks tiny on desktop viewers unless you frame in edit
AndroidQuick Settings → Screen recordSame readability issue
MacCmd + Shift + 5Mic + system audio need explicit toggles (no audio fix)
WindowsSnipping Tool video or Win + G Game BarSet Audio to record: All if you narrate over UI sounds

Move slowly. One finger / one click per idea.


Step 3: Assemble in a free editor (optional)

You may have: voice memo narration + screen clips.

  1. Import to CapCut or Canva Video (free tiers).
  2. Lay audio first, picture second.
  3. Trim loading states and false starts.
  4. Low-volume music bed (optional).
  5. Captions—most landing-page traffic is muted on mobile.
A mockup of a clean video editing timeline in CapCut showing audio, video, and auto-caption tracks

That stack works. It also hides a cost: manual zoom if the UI was recorded wide.


The hidden cost of "free" explainers

SymptomWhy it hurts conversion
Bookmarks + tabs visibleLooks like a side project
Tiny UI on phoneViewer assumes product is complex
Shaky cursor under zoomFeels anxious, not confident
Hours of keyframes in CapCut"Free" becomes expensive in founder time

Agency polish is not magic—it is framing + calm motion + clean stage. You can buy that with time in an NLE, or with capture-time tools.


When to skip the edit bay: record with presentation capture

For web and desktop apps, record the Solution beat with Cubix Capture:

  • Auto-zoom tracks clicks so buttons read on a phone
  • Smooth cursor keeps motion presenter-calm
  • Live backgrounds hide desktop noise

Optional post: captions or a tight trim in Cubix—not another full re-zoom project.


Quality checklist before you embed

  • Hook names pain in first 5 seconds
  • Only one workflow shown
  • Text readable at 50% phone width (preview on your phone)
  • CTA spoken and on-screen
  • File under email/Slack limits (file size fix)

Related reading:

C

Cubix Team

Product Marketing Specialists

Part of the visionary team at Cubix, redefining the future of video creation through agentic AI and seamless workflows.

Explainer Polish at Capture Time.

Script with Pain-Solution, record with Cubix Capture, embed on your landing page—no agency, no keyframe weekend.

Get Started Free