A Sensor Tower alternative?Not quite. It is the other half.
Sensor Tower tells you which screenshots perform. It does not make them. ScreenMocks is where the variants come from, and the two are complementary rather than competing.

Variants are cheap here
Duplicate a screen, change the headline, export both. Unlimited exports on every plan, including free.
Test per market, not just per design
48 locales from one design, so a variant can be tested in the language it will ship in.
Straight onto the listing
Push a winning set to App Store Connect without leaving the browser.
Feature by feature
Every row is checked against each product's own public pricing page, documentation and live app. Where a capability is not documented anywhere public, the cell says so rather than guessing.
| Capability | ScreenMocks | Sensor Tower |
|---|---|---|
| What it does | ||
| Designs the screenshots | ||
| Tests or reports on creative performance | ||
| Designing | ||
| Free-form canvas editor | ||
| Store screenshot templates | 40+ | |
| Device frames | 33 | n/a |
| 3D device mockupsReal GLTF models, rendered in the browser | Free tool | |
| Sizes and languages | ||
| Every store size from one designPositions and copy inherit down the size axis | ||
| App Store locales | 48 | |
| Per-locale layout overridesShrink the headline for German without touching English | ||
| Workflow | ||
| Produce many variants of one screen | Tests them | |
| Upload straight to App Store Connect | Not published | |
| Import a Figma file as a project | ||
| MCP connector for Claude, Cursor and Codex | ||
| Export and pricing | ||
| Unlimited projects, screens and exports, free | Paid platform | |
| Cheapest paid plan | $9.99/mo | See their site |
One design.Every canvas Apple and Google ask for.
Draw the screen once at iPhone 6.9. Every other canvas in the project reads from it, so the iPad set, the Android set and any custom size you add are already designed. Pin a layer on one canvas and it stays pinned there, and only there.
- A device frame follows the canvas: an iPhone drawn on the Play tab renders as a Pixel
- Ship six screenshots on iPhone and three on iPad from the same project
- Export writes every size and language into one ZIP, folder by folder

One design, four canvases, nothing redrawn.
When the German runs long,fix the German.
Every tool in this category translates in bulk now. What breaks is the screenshot where the translated headline is 40 percent longer than the English one and collides with the phone. In ScreenMocks any layer can carry a per-locale override, so you shrink that one headline in that one language and the other 47 stay exactly as you drew them.
- 48 App Store locales, right-to-left included
- Overrides are per locale, per size, or per exact cell
- AI translation fills empty lines only and never overwrites a line you wrote

One override. Forty-seven other languages untouched.
Bring a Figma file.Or bring an agent.
If the design already exists in Figma, import it as a project: text stays editable so it can be localized, and anything that cannot be expressed exactly is rendered by Figma and brought in as an image rather than approximated. If you would rather not open a design tool at all, the MCP connector lets Claude Code, Cursor or Codex build and edit the whole set through the same API the editor uses.
- Your Figma token never reaches a ScreenMocks server
- Agents read a layout report, so they can see what they built and fix it
- Whatever an agent makes opens in the editor as a normal project

Both connectors are on every paid plan, the one-time pass included.
What each one costs
Prices as published on August 24, 2026. Check Sensor Tower's own page before you decide.
- Free plan: unlimited projects, screens, sizes and exports
- Paid removes the watermark and opens all 48 locales
- Figma Connector and MCP Connector on every paid plan
- The Launch Pass never expires and never renews
Moving over takes about twenty minutes
You need your app's captures, which you already have.
Build the base design once
One project, every canvas size, every locale you sell in. This is the control in whatever test you are about to run.
Duplicate and change one thing
A screen duplicates in a keystroke. Change the headline, the backdrop or the order, and export both sets. Exports are unlimited on every plan.
Ship the winner
Push the set that won straight to App Store Connect, or export the ZIP and upload it wherever you test.
Questions people ask before switching
Is ScreenMocks an alternative to Sensor Tower?
Not really, and it would be misleading to say otherwise. Sensor Tower measures and tests store creatives; ScreenMocks designs them. If your screenshots are already made and you want to know which one converts, you want Sensor Tower. If you need the screenshots, you want this.
Can I make A/B variants in ScreenMocks?
Yes, and cheaply. Duplicating a screen is one keystroke, exports are unlimited on every plan including free, and a variant can be produced in all 48 locales at once so you are testing the design rather than the translation.
Can I upload the winner automatically?
Yes. Connect an App Store Connect API key and push a set straight onto a version you have opened for editing. The key is sealed server-side and never returns to the browser.
What does ScreenMocks cost next to an ASO platform?
Free with a watermark, $9.99 a month without one, or $149 once. ASO platforms in Sensor Tower’s class are typically priced per month in the hundreds, because they are measuring a market rather than drawing a picture.
Build the set once.Ship it in 48 languages.
Free plan, no card, and every canvas size exports from the first minute. Bring a Figma file or start from a template.
Pro is $9.99 a month. The Launch Pass is $149 once and never renews.
ScreenMocks published this comparison and sells one of the products in it. Sensor Tower is a trademark of its owner and is not affiliated with ScreenMocks. Details were verified on August 24, 2026 and are reviewed quarterly. check sensortower.com. Out of date?