
CalyxOS
LineageOS
Android
Ubuntu Touch
CopperheadOS
postmarketOS
e.foundation /e/
GrapheneOS is an open source privacy and security focused mobile OS with Android app compatibility.

Bannerbear
ScreenshotAPI.net
HTMLCSS to Image API
ScreenshotRun
Placid
Orshot
Abyssale
Screenshot & PDF API for Developers. Capture website screenshots, convert HTML to PDF, and generate OG images with a simple API call.

Which is more popular?
Based on our record, GrapheneOS seems to be more popular. It has been mentioned 402 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | grapheneos.org | captureapi.dev |
| Pricing | ||
| Company | — | Startup from Spain |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of GrapheneOS yet.
CaptureAPI is a developer-focused serverless API for capturing website screenshots (PNG, JPEG), converting HTML to PDF, and generating Open Graph images. Built on Puppeteer + headless Chromium, it supports 5 viewport presets (Mobile, Tablet, Desktop, Full HD, 4K) plus custom sizes, CSS selector...
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
GrapheneOS Review: Your BEST Secure & Private Mobile OS!
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing GrapheneOS and CaptureAPI.dev.
CaptureAPI.dev's answer:
Named customer references available on request as the user base grows.
CaptureAPI.dev's answer:
CaptureAPI bundles website screenshots, HTML-to-PDF conversion, and OG image generation into a single predictable API endpoint. Unlike heavy headless-browser platforms, it offers a 200/month free tier, transparent flat-rate pricing, and a developer-first design with no per-call billing surprises.
CaptureAPI.dev's answer:
Three reasons: (1) honest free tier — 200 captures/month, no credit card; (2) flat pricing ($9 / $29 / $79) instead of per-call confusion; (3) screenshot, PDF, and OG image generation all in one API rather than three separate services.
CaptureAPI.dev's answer:
Indie developers, side-project builders, and small SaaS engineering teams who need a reliable screenshot/PDF/OG API without enterprise contracts. Common use cases: OG image generation, blog cover screenshots, automated archiving, and product preview generation for landing pages.
CaptureAPI.dev's answer:
CaptureAPI was built by an indie maker tired of stitching together Puppeteer scripts, paying enterprise prices for a single feature, and dealing with hidden rate-limit surprises. It launched in early 2026 as part of the DevToolsmith portfolio with the goal of offering screenshot, PDF, and OG generation under one developer-friendly API.
CaptureAPI.dev's answer:
Next.js 16, TypeScript, Vercel Functions (Fluid Compute), Playwright for headless rendering, Sharp for image processing, Upstash Redis for rate limiting and caching, Stripe for billing, and Sentry for observability. Serverless on EU + US edge for low latency.
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External articles and on-site reviews we used to compare the two products.


GrapheneOS is a modern and sleek mobile operating system with a strong focus on privacy and robust security features. Developed as an open-source project, it builds upon the foundations of the Android Open Source...
If security and privacy are your main reasons behind your search for an Android alternative, GrapheneOS fits the bill perfectly. It’s a security-hardened operating system, built with top-notch privacy protection in...
GrapheneOS in an open source privacy-focused mobile operating system. It is focused on the research and development of privacy and security technology.
We have no reviews of CaptureAPI.dev yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


But you can install other OSes such as Graphene on Android phones, I dont think you can do that on iPhones can you? https://grapheneos.org/. - Source: Hacker News / about 1 month ago
You've got the ideal hardware to move to GrapheneOS https://grapheneos.org/. - Source: Hacker News / about 2 months ago
Zero Google services are shippsx by default, but you can install Play Store and Services in a sandbox and it has minimal privacy problems, depending on the permissions you give it. Their docs are really good, not only for their phone but... - Source: Hacker News / 4 months ago
Tracking CaptureAPI.dev since Mar 2026.
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