Comparison

ShipExtension vs String

Full disclosure: we build ShipExtension, so we're not a neutral review site. But we'll be straight about the trade-off. String is a managed service that custom-builds and operates your shipping rules for you; ShipExtension is self-serve software you run yourself. Both handle the same class of box, rate, and rule decisions — here's how they actually differ, as of July 2026.

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ShipExtension vs String, side by side

Feature ShipExtension String

Pricing model

 Self-serve subscription from $79/mo, with an optional done-for-you setup layer if you want help — as of July 2026. Managed service: Core $2,000/mo ($1,500/mo billed annually) and Advanced $3,500/mo ($2,625/mo billed annually), plus a one-time setup fee — as of July 2026.

How you get started

 Sign up and start a free 14-day trial — no sales call required, no credit card. Booking-only: you schedule a sales call to get started, with no self-serve trial — as of July 2026.

Who builds and operates the rules

 You own and edit your own rules in a self-serve interface. You can hand rule-building to us as a paid setup if you'd rather not do it yourself. String's team custom-builds and maintains your rules for you — a managed, agency-style model ("software with an agency feel"), as of July 2026.

Box, rate, and rule decisioning

 Yes — 3D multi-item cartonization with a whole-order consolidation guard, package-first cross-account rate shopping, and multi-SKU rule conditions, all self-serve. Yes — String builds and operates box, rate, and rule logic for you as part of the managed service (as of July 2026).

Ownership and control of your rules

 You own your configuration and can export it; changes are yours to make anytime. Rules are built and maintained by String's team; the managed model means their team makes ongoing changes (as of July 2026).

Named customers and proof

 A published founder case study (PPC International) with sourced figures; more independent case studies in progress. Publicly names customers including Keto Chow, Giordano's Pizza, and Gains In Bulk (as of July 2026).

Support and service model

 Self-serve software with founder support, plus optional paid guided implementation and managed optimization when you want a hand. Full managed service — String's team operates your setup on your behalf (as of July 2026).

Choose String if…

  • You want your shipping rules fully built and operated for you, and you'd rather not touch the configuration yourself.
  • A managed-service price ($1,500–$2,625/mo billed annually, plus a setup fee) fits your budget and you value hands-off outsourcing — as of July 2026.
  • You prefer a booking-and-onboarding relationship over signing up and trying it yourself.
  • You want an agency-style partner to own the ongoing changes.

Choose ShipExtension if…

  • You want the same class of box, rate, and rule capability, but self-serve from $79/mo — as of July 2026.
  • You'd rather own and edit your own rules, with optional done-for-you setup when you want help.
  • You want to try it on your own orders first, on a free 14-day trial, before talking to anyone.
  • You're keeping ShipStation and want to extend it without moving to a managed provider.

Both approaches solve real problems. String is the right call when you want the work operated for you at a managed-service price; ShipExtension is the right call when you want to own the same capabilities at software pricing, with help available if you want it.

FAQ

Frequently asked questions

Is ShipExtension an alternative to String (meetstring.com)?
Yes. String is a managed service that builds and operates your shipping rules for you, priced from $1,500 to $2,625 per month billed annually plus a one-time setup fee, as of July 2026. ShipExtension gives you the same class of box selection, rate shopping, and rule-based automation as self-serve software from $79 per month, with an optional done-for-you setup layer if you want help. Choose String if you want it fully operated for you; choose ShipExtension if you want to own your rules at software pricing.
How much does String cost compared to ShipExtension?
String publishes Core at $2,000 per month ($1,500 billed annually) and Advanced at $3,500 per month ($2,625 billed annually), plus a one-time setup fee, as of July 2026. ShipExtension starts at $79 per month self-serve, with optional paid guided implementation and managed optimization if you want hands-on help. The gap reflects the model: String operates your setup for you, while ShipExtension is software you run yourself.
Does ShipExtension work with ShipStation the way String does?
ShipExtension is built specifically to extend ShipStation — it reads your live orders, decides which box a multi-item order fits, rate-shops across your carrier accounts, and writes changes back with a per-order audit trail, without moving you off ShipStation. String is a managed shipping-automation service; for their current platform and integration support, check String directly, as of July 2026.
Can I try ShipExtension without a sales call?
Yes. ShipExtension has a free 14-day trial with no credit card, so you can connect your ShipStation account and see the decisions on your own orders before talking to anyone. String is booking-only — you schedule a sales call to get started, with no self-serve trial, as of July 2026. If you'd like a hands-on look either way, you can also book a free order audit and we'll dry-run your last 100 orders read-only, with nothing written to your account.

Last reviewed July 17, 2026. String pricing, plans, and positioning cited from meetstring.com; ShipStation capabilities and pricing cited from ShipStation's help center and pricing page — all as of July 2026.

Own the same capabilities at software pricing

Start a free 14-day trial — no credit card, and your ShipStation setup stays untouched. Or book a free 100-order audit and we'll dry-run your last 100 orders read-only.

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