HARDER vs CallFirst

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

HARDER compared with CallFirst
Detail	HARDER	CallFirst
What it does	Challenges with photo proof, pre-written steps and a built-in comeback	Screen time app that unlocks social media after a real phone call with someone you love
Stage	Startup	Startup
Founded	2026	Not given
Based in	PL	GB
Pricing model	Freemium	Freemium
Pricing	Free plan includes 5 personal challenges per month, 5 private challenges per month, 1 public challenge per month, 1 public with approval challenge per month, and 1 extra space. Premium plan costs $7.99 per month (or annual pricing available) and includes unlimited personal, private, and public chall	Free tier with one contact and daily unlock; paid tiers available with pricing varying by region and currency (from GBP 0 to GBP 59.99). Annual subscriptions and one-time purchases available.
Key features	Pre-written daily steps for every challenge Photo, text, or Apple Health proof verification Automatic comeback system after missed days 200+ ready-made challenges across multiple categories Personal, private, or public challenge visibility Offline functionality with sync Space profiles and social community	Blocks Instagram, TikTok, YouTube, X, Threads, Facebook and Snapchat until 60-second phone call On-device call verification without access to call logs or audio Customizable blocking schedule with one-tap activation Supports both regular phone calls and WhatsApp calls Multiple contacts and named groups on Pro tier Privacy-first design with no contact data synced to servers Daily unlock system resetting each day Free tier with one contact and one daily unlock
What makes it different	Pre-written daily steps eliminate decision fatigue and executive function burden Missing a day doesn't reset progress—you pick up where you stopped Proof-based accountability that creates genuine evidence, not just checkboxes Automatic health data verification eliminates manual proof entry Join anytime without waiting for a challenge start date	Designed for personal connection rather than productivity blocking Call-based unlocking replaces generic friction like timers or breathing exercises Verification happens locally on-device without server access to contact data One simple mechanism designed for maximum behavioral impact
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)	4 no change since last check	3 no change since last check
Trust Flow (Majestic)	0	0
Citation Flow (Majestic)	0	20
Referring domains (Majestic)	0	18

7 details filled in for both companies.

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