Ahrefs
The most trusted SEO toolkit — backlink analysis, keyword research, and competitor intelligence
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Buffer
Schedule social media posts across platforms without the complexity of enterprise tools
Free tier, from $6/mo per channel
Dub.co
Open source link management and attribution
Free tier, Pro from $24/mo
Hypefury
Twitter/X scheduling and automation for creators
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Lemlist
Personalized cold email and outreach automation
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Senja
Collect and display testimonials beautifully
Free tier, from $29/mo
Testimonial.to
Video testimonials without code
Free tier, from $50/mo
Transistor.fm
Podcast hosting for serious creators and businesses
From $19/mo, unlimited podcasts
Typefully
AI-powered writing and scheduling for social media
Free tier, Pro from $12.50/mo