Expat Mail Forwarding Service

iPostal1 vs Stable: full comparison for 2026

Quick verdict

iPostal1 (4.5/5) edges ahead of Stable (4.0/5) overall. iPostal1 is the better choice for picking a specific city or ZIP code for the address. Stable is the stronger option for remote businesses wanting Slack/Zapier-integrated mail. The right choice depends on your project size, budget, and required tech stack.

iPostal1 vs Stable: head-to-head summary

Criterion iPostal1 Stable
Founded 2015 2019
HQ Suffern, NY San Francisco, CA
Team size 51–200 11–50 (per public sources; independently unverifiable)
Rating 4.5 / 5 4.0 / 5
Primary differentiator Over 3,000 partner locations gives it more city and ZIP code choice than any other provider covered here Built as software-first business tooling, with Slack and Zapier integrations, rather than as a personal expat mailbox that happens to support teams
Pricing model Tiered monthly plans priced by scanned-item volume, with per-item overage fees above the plan limit Two published tiers (Grow, Scale) billed annually, plus custom enterprise plans; both include automatic scanning and forwarding
Min. engagement $9.99/mo (30 items included; overage billed per item) $49/mo (Grow plan, billed annually)
Primary tech stack Web and mobile dashboard, Scan-on-demand mail viewing, Phone and fax forwarding Slack integration, Zapier integration, Automatic mail opening and scanning
Industries served Online sellers needing a business address, Frequent travelers, Small businesses, Expats and remote workers Remote-first businesses, Startups needing a business address, Teams with distributed mail-handling needs

iPostal1 vs Stable: overview

iPostal1

Jeff Milgram, a software engineer, launched iPostal1 in 2015 from Suffern, New York, where the company still keeps its headquarters. The service is a marketplace: each of its 3,000-plus addresses is run by an independent local mail center instead of by iPostal1 directly, which is how it reaches such a large number of cities without operating every facility itself. That structure means scan turnaround and day-to-day service quality can differ from one location to the next, since the company overseeing a given address isn't iPostal1 but whichever local partner signed up. No domicile, DMV, or residency support is offered anywhere in the network.

Stable

Stable launched in San Francisco in 2019 and has grown into an $8M-ARR, bootstrapped virtual mailbox business, but its product is built for companies rather than individuals living abroad: plans integrate with tools like Slack and Zapier, and pricing runs from $49/mo on the Grow plan up to $84/mo for Scale, both billed annually. That positioning makes it a legitimate comparison point for a remote-business owner weighing options, but a mismatched one for a typical expat just trying to keep a personal mailbox, its feature set and price point both assume a business use case from the outset.

Services and capabilities: iPostal1 vs Stable

Capability iPostal1 Stable
Non-CMRA residential address ✗ ✗
Domicile / DMV support ✗ ✗
Registered agent ✗ ✗
International forwarding ✓ ✗
Check deposit ✗ ✗
Package consolidation ✓ ✗

Feature comparison: iPostal1 vs Stable

Feature iPostal1 Stable
Dashboard ✓ N/A
Check deposit N/A N/A
Mail bundling N/A N/A
International N/A N/A
Package consolidation ✓ N/A

Pricing comparison: iPostal1 vs Stable

Criterion iPostal1 Stable
Minimum engagement $9.99/mo (30 items included; overage billed per item) $49/mo (Grow plan, billed annually)
Engagement models Monthly, Annual Annual, Custom
Rate transparency Minimum disclosed Minimum disclosed
Price tier Mid-market Accessible

Target audience comparison: iPostal1 vs Stable

Dimension iPostal1 Stable
Best company size Startup to mid-market Startup to mid-market
Best industries Online sellers needing a business address, Frequent travelers, Small businesses Remote-first businesses, Startups needing a business address, Teams with distributed mail-handling needs
Best use cases Someone who wants a mailbox address in one specific city rather than wherever a provider happens to have a facility, A frequent traveler who wants phone and fax forwarding alongside mail A remote-business owner who wants Slack and Zapier notifications when mail arrives, A small distributed team that needs multiple people to have permissioned mailbox access
Typical project type Monthly Annual

iPostal1 vs Stable: pros and cons

iPostal1
+ The widest choice of mailbox cities and ZIP codes among the providers in this review
+ Phone and fax forwarding are included, features most direct-operator competitors skip entirely
+ Entry pricing undercuts most single-facility operators
+ Package consolidation is available to cut international shipping costs on multiple items
- $0.35 per-item overage fees can make monthly costs hard to predict once mail volume climbs past the plan limit
- Because iPostal1 doesn't run its own facilities, the experience varies by which local partner is assigned to a given address
- No path to a residency-grade address or any DMV/domicile assistance
- Additional scans past the included volume are billed per order rather than folded into a flat rate
Stable
+ Slack and Zapier integrations are genuinely useful for a distributed team, well beyond what most personal-mail competitors offer
+ User permissions and access controls suit a company with more than one person needing mailbox access
+ An early-stage discount (50% off the first year for companies under $1M in revenue) lowers the entry cost for small teams
+ A modern, software-first interface compares favorably to older, less polished competitors
- Starting price ($49/mo) is well above what an individual expat would pay for a personal mailbox elsewhere on this list
- The product and its marketing are built for companies rather than individuals, which shows in every part of the experience from onboarding to pricing
- Residency and DMV paperwork sit entirely outside what the product does or was ever meant to do
- Founding year and headquarters are the only facts confirmed from a primary-adjacent source; team size is independently unverifiable

Who should choose iPostal1?

A typical fit: someone who wants a mailbox address in one specific city rather than wherever a provider happens to have a facility.

Over 3,000 partner locations gives it more city and ZIP code choice than any other provider covered here. Minimum engagement starts at $9.99/mo (30 items included; overage billed per item). Works best with clients in Online sellers needing a business address, Frequent travelers, Small businesses, Expats and remote workers.

Who should choose Stable?

A typical fit: a remote-business owner who wants Slack and Zapier notifications when mail arrives.

Built as software-first business tooling, with Slack and Zapier integrations, rather than as a personal expat mailbox that happens to support teams. Minimum engagement starts at $49/mo (Grow plan, billed annually). Works best with clients in Remote-first businesses, Startups needing a business address, Teams with distributed mail-handling needs.

Decision matrix: iPostal1 vs Stable

Your situation Recommended choice
You need a real residential address a bank or DMV will accept Neither; consider alternatives positioned as residency-grade
You want domicile/DMV paperwork handled alongside the mailbox Neither; both leave domicile filing to the customer
Your budget is at the lower end Stable
You want a registered agent bundled with your plan Neither; check a standalone registered-agent service
You need remote check deposit Neither offers check deposit
You want the widest choice of mailbox locations iPostal1

Use case fit: iPostal1 vs Stable

Use case iPostal1 fit Stable fit Winner
Someone who wants a mailbox address in one specific city rather than wherever a provider happens to have a facility Strong Limited iPostal1
A frequent traveler who wants phone and fax forwarding alongside mail Strong Strong Both equally
A remote-business owner who wants Slack and Zapier notifications when mail arrives Strong Strong Both equally
A small distributed team that needs multiple people to have permissioned mailbox access Strong Strong Both equally
A bank/DMV-accepted residential address Strong Strong Both equally
A registered agent bundled with mail Strong Strong Both equally

Verdict: iPostal1 vs Stable

iPostal1 (4.5/5) is the stronger overall choice for most Expat Mail Forwarding projects. Over 3,000 partner locations gives it more city and ZIP code choice than any other provider covered here.

Stable (4.0/5) is worth a look if you need a small distributed team that needs multiple people to have permissioned mailbox access. If your situation matches that, Stable is a competitive option.

Related comparisons

iPostal1 vs Stable FAQ

Is iPostal1 better than Stable?

iPostal1 (4.5/5) scores higher overall, but "better" depends on your use case. iPostal1's strongest advantage: the widest choice of mailbox cities and ZIP codes among the providers in this review. Stable's strongest advantage: slack and Zapier integrations are genuinely useful for a distributed team, well beyond what most personal-mail competitors offer.

How do iPostal1 and Stable differ in pricing?

iPostal1 uses tiered monthly plans priced by scanned-item volume, with per-item overage fees above the plan limit pricing with a minimum engagement of $9.99/mo (30 items included; overage billed per item). Stable uses two published tiers (grow, scale) billed annually, plus custom enterprise plans; both include automatic scanning and forwarding pricing with a minimum engagement of $49/mo (Grow plan, billed annually). Neither firm publishes a full rate card; a discovery call is required for project-specific quotes.

Which is better for enterprise: iPostal1 or Stable?

iPostal1 is the larger team and typically the better enterprise-scale choice. For very large programmes, verify team size and compliance coverage directly with each service before shortlisting.

What are the main differences between iPostal1 and Stable?

iPostal1's primary differentiator is: over 3,000 partner locations gives it more city and ZIP code choice than any other provider covered here. Stable's primary differentiator is: built as software-first business tooling, with Slack and Zapier integrations, rather than as a personal expat mailbox that happens to support teams. They also differ in team size (51–200 vs 11–50 (per public sources; independently unverifiable)), minimum engagement ($9.99/mo (30 items included; overage billed per item) vs $49/mo (Grow plan, billed annually)), and primary industries served (Online sellers needing a business address, Frequent travelers vs Remote-first businesses, Startups needing a business address).

Verify all details directly with each service before making a decision.