Astra by Sellrbox vs PostPilot
A side-by-side comparison for e-commerce sellers — platforms, pricing, free trials and ROI.
Amazon PPC automation with full-funnel campaigns per ASIN and unlimited strategist support
Programmatic direct mail for Shopify brands: triggered postcards, win-backs and AI-targeted prospecting
| Category | Ad Creative | Email & SMS |
|---|---|---|
| Platforms | Amazon | Shopify DTC |
| Pricing | From $149/mo + 1.75% of ad revenue; 30-day free trial | Free plan (pay per postcard); Pro from $419/mo |
| Free trial | Yes | Yes |
| Affiliate program | Direct | Direct |
| ROI | Get full-funnel campaigns on every ASIN with a strategist on call, without agency retainers. | Reach lapsed customers in a mailbox that isn't drowning in promo emails. |
Which should you choose?
Amazon brands that want automation plus experienced humans without an agency retainer.
DTC brands with good margins and repeat-purchase products looking for a retention channel email can't reach.
Astra by Sellrbox
Pros
- Strategists who run their own brands
- Charges on ad revenue, not ad spend
- Generous trial
Cons
- Percentage fee scales with success
- Amazon only
- Less control for hands-on PPC managers
PostPilot
Pros
- Free plan — pay only for what you mail
- Mail stands out when inboxes are saturated
- Prospecting beyond your own list
Cons
- Physical mail costs more per touch than email
- Pro plan starts at $419/month
- Slower feedback loop than digital channels
Other tools to consider
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Influencer, affiliate and referral programs that turn customers and creators into a sales channel
First-party affiliate tracking and payouts for e-commerce brands — no cookies, no redirects
Amazon seller analytics: reconciled profit, P&L, PPC, LTV and market share, refreshed every 30 minutes
AI writer for product descriptions, ad copy, and SEO content