Custom JS & CSS for Safari
Store data observed · From public App Store data · How we score apps
- Developer Tools
- App Store
- United States
- 5.01 ratings
- Paid $2.99
- Updated
- Observed
Est. monthly revenue
EstimatedEst. monthly downloads
Estimated90-day growth
Opportunity score
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About Custom JS & CSS for SafariObserved
Custom JS & CSS for Safari is a Developer Tools app by Alfredo Grassau on the United States App Store. Released Jun 8, 2026; last updated Sep 30, 2026 (version 1.0.7). Custom JS & CSS for Safari costs $2.99 to download.
Custom JS & CSS for Safari has a 5.0-star average rating from 1 ratings on the United States App Store as of Oct 8, 2026. On Oct 12, 2026, Custom JS & CSS for Safari ranked #19 on the Developer Tools top chart. MRRBeam rates the success of Custom JS & CSS for Safari 22/100 (early stage).
Custom JS & CSS for Safari is a powerful Safari Extension that lets you personalize the web with your own JavaScript, CSS, and userscripts. Create site-specific enhancements, visual tweaks, automations, and custom browsing tools directly in Safari.
- Success score
- 22/100 Early stage
- In Developer Tools
- Outside the top 100
- Chart position
- #19 in Developer Toolson Oct 12, 2026
- Developer
- Alfredo Grassau
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The most successful Developer Tools apps MRRBeam tracks in the United States.
Custom JS & CSS for Safari: common questions
- What is Custom JS & CSS for Safari?
- Custom JS & CSS for Safari is a Developer Tools app developed by Alfredo Grassau, available on the App Store. It was first released on Jun 8, 2026.
- How is Custom JS & CSS for Safari rated?
- Custom JS & CSS for Safari has a 5.0-star average rating from 1 ratings on the United States App Store as of Oct 8, 2026.
- How much money does Custom JS & CSS for Safari make?
- MRRBeam estimates Custom JS & CSS for Safari makes about $160–$690 a month in revenue from 60–180 downloads a month, based on its #19 position on the Developer Tools paid chart. This is a modelled estimate, not reported data.
- How many downloads does Custom JS & CSS for Safari get?
- About 60–180 downloads a month, by MRRBeam's estimate from its chart position. Apple does not publish download counts.
- How much does Custom JS & CSS for Safari cost?
- Custom JS & CSS for Safari costs $2.99 to download.
- Is Custom JS & CSS for Safari successful?
- On Oct 12, 2026, Custom JS & CSS for Safari ranked #19 on the Developer Tools top chart. MRRBeam rates the success of Custom JS & CSS for Safari 22/100 (early stage). The success score combines rating volume, chart position and average rating.
- When was Custom JS & CSS for Safari last updated?
- Custom JS & CSS for Safari was last updated on Sep 30, 2026 (version 1.0.7).
- What are alternatives to Custom JS & CSS for Safari?
- Similar Developer Tools apps tracked by MRRBeam include TestFlight, GitHub, Sekai: Create · Remix · Play, Replit: Vibe Code with AI Fast and NextVPN: Fast & Secure Proxy.
- Is there room to build a competitor to Custom JS & CSS for Safari?
- MRRBeam's opportunity score for Custom JS & CSS for Safari is 40/100. Limited opening: modest estimated revenue, low price points and a strong 5.0★ rating.