Software Alternatives & Startups

FastCopy VS Postproxy

Compare FastCopy VS Postproxy and see what are their differences

FastCopy

FastCopy is the fastest copy, delete, & sync software on Windows.

Rating
0 reviews
Postproxy

Postproxy is a unified API to publish, manage comments, direct messages, and reviews across Instagram, TikTok, LinkedIn, X, YouTube, Facebook, Threads, Bluesky, and more.

Rating
0 reviews
Pricing
Freemium $12 / Monthly (Starter, 10 Profile Groups, 120 Posts/mo)
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Based on our record, FastCopy seems to be more popular. It has been mentioned 1 time since March 2021.

social mentions
1 vs 0
File Management popularity
100% vs 0%
alternatives listed
71 vs 38

Base details

Website, pricing, platforms and company facts side by side.

FastCopy
Postproxy
Website fastcopy.jp postproxy.dev
Pricing —
Freemium $12 / Monthly (Starter, 10 Profile Groups, 120 Posts/mo) Official pricing
Company — Startup from Germany · 1 - 9 employees · 2026
Listed in

About FastCopy and Postproxy

In their own words, as submitted to SaaSHub.

FastCopy
Postproxy

No description of FastCopy yet.

Postproxy is a social media API for products that need more than publishing. Publish posts, manage comments, DMs and reviews, track post and profile analytics, and receive webhooks across major platforms. Built for SaaS products, automation workflows, and agents that need reliable social media...

Read more about Postproxy

Features and specs

What each product offers, as listed by its team.

FastCopy 6 features
Postproxy 4 features
  • Speed
    FastCopy is well-known for its high-speed copying capabilities, often outperforming standard file copy tools.
  • Verification
    The software includes an option for verifying copied files, ensuring data integrity after the transfer.
  • Customization
    Users can customize copy operations to suit their needs, including options for buffer size and operation mode.
  • Error Handling
    FastCopy provides detailed error reporting and logs, making it easier to identify and resolve issues during file transfers.
  • Portable Version
    A portable version of FastCopy is available, allowing users to run it from a USB drive without installation.
  • Compatibility
    Compatible with a wide variety of Windows operating systems, from older versions to the latest releases.

Possible disadvantages

  • User Interface
    The user interface is somewhat dated and may not be intuitive for beginners.
  • Lack of Advanced Features
    While it excels at file copying, FastCopy lacks some of the more advanced features found in competitor tools, like file synchronization.
  • Limited Support
    Support and documentation are limited, which can make troubleshooting more difficult for less experienced users.
  • No Mac/Linux Versions
    FastCopy is only available for Windows, leaving users of other operating systems without a native option.
  • Learning Curve
    The array of options and settings can be overwhelming for new users, requiring time to learn and configure properly.
  • Ease of Integration
    Postproxy offers a user-friendly API design that makes integration with existing applications straightforward and efficient.
  • Scalability
    The service is built to handle high volumes of requests, making it suitable for businesses expecting to scale operations.
  • Enhanced Security
    Postproxy provides robust security features such as encryption and IP whitelisting, ensuring data transmitted is secure.
  • Comprehensive Documentation
    The platform offers detailed, well-organized documentation that helps developers troubleshoot and implement solutions quickly.

Analysis

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

FastCopy
Postproxy

No analysis of FastCopy yet.

Overall verdict

  • I don't have reliable information about Postproxy (postproxy.dev) in my knowledge base, so I can't give you a verified assessment of whether it's good. I'd recommend evaluating it directly against your own requirements before committing.

Why this product is good

  • The service appears to be a proxy-related developer tool based on its name and domain, which could be useful for API request handling, testing, or routing
  • A dedicated '.dev' domain suggests it targets developers, which often means a focus on developer experience and integration
  • Proxy tools in general can help with tasks like request inspection, mocking, rate limiting, and debugging
  • Without verified reviews or documentation, you should check its official docs, pricing, uptime/SLA claims, and community feedback before relying on it

Recommended for

  • Developers who need a quick proxy or request-routing solution and are willing to trial the tool first
  • Teams evaluating lightweight API proxying, mocking, or debugging tools
  • Users who prioritize doing their own due diligence via official documentation and independent reviews before adopting a service

Videos

Walkthroughs and reviews on video.

FastCopy 4 videos + Add
Postproxy 1 video + Add

Windows 8.1 vs UltraCopier vs Teracopy vs SuperCopier4 vs ExtremeCopy vs FastCopy

More videos

  • - FastCopy, SuperCopier, TeraCopy, UltraCopier and Copy Handler Speed Comparison (2021)
  • - Slow Copying in Windows 11? Try FastCopy to copy your files.
  • - GS RichCopy 360 VS. FASTCOPY Performance Review

Postproxy Walkthrough: Social Media API for Publishing, Comments & DMs

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
FastCopy
Postproxy
100% 100%
0% 0%
0% 0%
100% 100%
100% 100%
0% 0%
0% 0%
100% 100%

Questions & Answers

As answered by people managing FastCopy and Postproxy.

What's the story behind your product?

Postproxy's answer:

We were building a product for ads creation at scale with fancy templates management, different platforms with adaptive sizing. Then Nano Banana got released and made a product largely obsolete. Postproxy was basically a part of that product.

Why should a person choose your product over its competitors?

Postproxy's answer:

Postproxy is a production-grade social media API for SaaS products, AI agents, and multi-tenant platforms. It provides one API for publishing, comments, direct messages, reviews, analytics, webhooks, and OAuth account connections across Instagram, Facebook, Threads, LinkedIn, TikTok, X, YouTube, Pinterest, Google Business Profile, Bluesky, and Telegram.

Compared with publishing-only APIs and automation tools, Postproxy is designed for customer-facing products that require official platform integrations, explicit delivery statuses, automatic retries, profile-group isolation, predictable pricing, and infrastructure built for production workloads.

What makes your product unique?

Postproxy's answer:

Postproxy combines production-grade publishing infrastructure, engagement, and analytics in one social media API. Every publishing request has an explicit status and human-readable failure reason, failed deliveries can be retried automatically, and the same platform also handles comments, direct messages, reviews, profile analytics, and webhooks.

Postproxy uses official platform APIs and OAuth flows, supports isolated profile groups for multi-tenant products, and provides integrations for n8n, Make, and Zapier, as well as an MCP server for AI agents.

How would you describe the primary audience of your product?

Postproxy's answer:

Postproxy is primarily built for developers and product teams creating SaaS platforms, AI agents, marketing tools, and multi-tenant social media products. It is also used by agencies and automation specialists that manage social accounts for multiple customers.

Individual creators can use Postproxy, but the platform is optimized for software products and production workflows rather than manual social media management.

User comments

Share your experience with using FastCopy and Postproxy. For example, how are they different and which one is better?

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Reviews and articles

External articles and on-site reviews we used to compare the two products.

FastCopy no reviews yet
Postproxy no reviews yet

View more

We have no reviews of Postproxy yet. Be the first one to post

Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

FastCopy 1 mention
Postproxy 0 mentions
  • Copy-Item is 27% slower than File Explorer
    It's fortunately been years since I have used Windows, but it looks like the old staples are still ahead of the curve: https://fastcopy.jp/ https://www.codesector.com/teracopy (I have certainly forgotten at least one...). - Source: Hacker News / 10 months ago

Tracking Postproxy since Feb 2026.

Alternatives to FastCopy and Postproxy

When comparing FastCopy and Postproxy, you can also consider the following products.