GanttFlow™ vs HelioPeak

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

GanttFlow™ compared with HelioPeak
Detail	GanttFlow™	HelioPeak
What it does	Fast, no-bloat Gantt chart maker for project timelines	Solar production tracker for PVOutput with charts, widgets and exports
Stage	Startup	Not given
Founded	2026	Not given
Based in	CA	BE
Pricing model	Freemium	Freemium
Pricing	Free: $0 forever (1 project, PNG export with watermark). Pro: $12 CAD/month or $99 CAD/year (unlimited cloud projects, templates, baseline tracking, PDF export). Lifetime: $249 CAD once (everything in Pro, no future charges).	Free with one system. One-time in-app purchase for unlimited systems.
Key features	Drag to reschedule tasks and dependencies Dependency arrows with clean routing Milestones and markers Light and dark themes with custom colours One-click PNG and PDF export Cloud sync across devices (Pro) Baseline tracking to compare original vs. current plans (Pro) 13 ready-made templates (Pro) Sub-lanes for nested phases (Pro) All dependency types: FS, SS, FF, SF (Pro)	Home screen and lock screen widgets
What makes it different	Built for the timeline you show people, not to run your entire organization No per-seat pricing: one account, one person, everyone else sees the exported chart From blank page to shareable chart in under a minute Free plan with no trial clock, no card required, never expires Lifetime plan: one payment of $249 CAD, all future updates included	No intermediary server: reads directly from PVOutput with no data manipulation or collection All features included with one free system; no subscription required Private notes never seen by developers, synced only via iCloud
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	Not checked yet no change since last check	Not checked yet no change since last check
Trust Flow (Majestic)	6	0
Citation Flow (Majestic)	18	17
Referring domains (Majestic)	3	21

6 details filled in for both companies.

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