Skip to main content
FranchiseVerdict

GNC vs Sonic

Franchise Comparison 2026

GNC is a healthcare franchise, while Sonic operates in quick-service restaurants. GNC requires an investment of $188K – $507K while Sonic requires $1.5M – $2.5M. In terms of revenue, Sonic reports higher average unit revenue at $1.6M. On SBA loan performance, GNC has a lower charge-off rate (0.0%) compared to Sonic (8.3%). FranchiseVerdict rates GNC A (Strongest tier) and Sonic A (Strongest tier).

Investment Range
$188K – $507K
$1.5M – $2.5M
Franchise Fee
$20K
$15K
Royalty Rate
6.0%
5.0%
Average Revenue (Item 19)
$476K
$1.6M
SBA Charge-Off Rate
0.0% (10 loans)
8.3% (144 loans)
Total Units
2,140
3,412
Unit Growth (YoY)
N/A
N/A
Year Began Franchising
2021
1974
FDD Year
2025
2026