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HackFlowy vs simpl4

Professional comparison and analysis to help you choose the right software solution for your needs.

HackFlowy icon
HackFlowy
simpl4 icon
simpl4

HackFlowy vs simpl4: The Verdict

Last updated: May 2026 · Comparison by Sugggest Editorial Team

Feature HackFlowy simpl4
Sugggest Score — —
Category Development Office & Productivity
Pricing Open Source Open Source

Product Overview

HackFlowy
HackFlowy

Description: HackFlowy is a free, open-source, self-hosted alternative to Roam Research. It allows for networked thought and knowledge management with backlinks, tag support, and graph views. As an Electron app, it works cross-platform on Windows, Mac and Linux.

Type: software

Pricing: Open Source

simpl4
simpl4

Description: simpl4 is an open-source, self-hosted project management software. It is designed to be simple, intuitive and fast while covering the essential features required by teams to plan, track and collaborate on projects.

Type: software

Pricing: Open Source

Key Features Comparison

HackFlowy
HackFlowy Features
  • Backlinks
  • Tag support
  • Graph views
  • Cross-platform (Windows, Mac, Linux)
simpl4
simpl4 Features
  • Task management
  • Time tracking
  • Gantt charts
  • Kanban boards
  • Calendar
  • Wiki pages
  • Issue tracking
  • Notifications
  • Access controls
  • REST API

Pros & Cons Analysis

HackFlowy
HackFlowy
Pros
  • Free and open source
  • Self-hosted
  • Similar functionality to Roam Research
Cons
  • Requires more technical setup than SaaS tools
  • Smaller user community than more established tools
  • Less polished UX than some competitors
simpl4
simpl4
Pros
  • Open source
  • Self-hosted
  • Simple and intuitive
  • Fast performance
  • Covers essential PM features
  • Active development
  • Customizable
Cons
  • Limited reporting
  • No resource management
  • No portfolio management
  • Limited integrations

Pricing Comparison

HackFlowy
HackFlowy
  • Open Source
simpl4
simpl4
  • Open Source

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Learn More About Each Product

HackFlowy
HackFlowy
Reviews, pricing & alternatives →
simpl4
simpl4
Reviews, pricing & alternatives →

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