AstroHelm vs Firsty

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

AstroHelm compared with Firsty
Detail	AstroHelm	Firsty
What it does	Plate solving and push-to telescope navigation for smartphones	One eSIM for global mobile data in 180 countries
Stage	Not given	Not given
Founded	Not given	2023
Based in	US	NL
Pricing model	Freemium	Freemium
Pricing	Free with optional one-time purchases: Plus $9.99 (Messier and Caldwell catalogs, Bayer or Flamsteed designated stars), Pro $29.99 (everything in Plus, NGC and IC catalogs, remote control, ASCOM Alpaca/INDI/LX200/Stellarium connections), Pro Beta pricing $24.99	Free plan: watch ads for up to 360 MB data daily (20 MB per ad). Classic: €0.98 per GB, covers 180 countries. Unlimited: €2 per day or committed monthly/yearly plans. Belgium local 15GB plan: €7/month or €6.50/month with yearly commitment.
Key features	Live plate solving with accuracy up to within 10 arcseconds Computes coordinates in less than a second Immune to magnetic field interference Works in light-polluted skies Complete offline operation Personalized guide to tonight's best targets Remote control between devices (iOS) Integration with Stellarium and SkySafari	Pay-per-GB plans starting at €0.98 Unlimited daily data from €2 per day International calling to 200+ countries Automatic local provider switching Personal hotspot support Dual SIM compatibility
What makes it different	On-device plate solving eliminates compass and gyroscope drift and lags that traditional astronomy apps experience Sub-arcminute precision navigation that outperforms standard planetarium apps No subscription required, only optional one-time purchases Compatible with existing telescope and equipment without proprietary hardware lock-in	Free tier with no credit card or subscription required Trusted by 1.4M+ users
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)	5 no change since last check	51 +1 (up) since last check
Trust Flow (Majestic)	7	12
Citation Flow (Majestic)	28	37
Referring domains (Majestic)	65	463

6 details filled in for both companies.

More alternatives to AstroHelm More alternatives to Firsty