Shipping software · Head to head
Shippo vs Stamps.com
Shippo is an API-first platform with 85+ supported carriers. Stamps.com is a USPS-focused tool with decades of integrations in accounting and marketplace software. They compete most obviously on price.
TL;DR
Shippo covers five more carriers than Stamps.com and charges pay-as-you-go. Stamps.com has slightly deeper USPS discounts but only supports USPS + UPS. Pick Shippo unless you only ship USPS and already use Stamps.com.
Parity check
Both tools quote the same carrier rates
Shipping apps do not set postage. Carriers do. When two tools both claim USPS commercial pricing, they quote the same number to the cent. The fee difference between tools is software, not postage.
- 01
Ground FedEx 4d $23.33 +$14.15 - 02
Ground Saver UPS 5d $9.18 cheapest - 03
Ground Advantage USPS 5d $9.65 +$0.47
Close call Only $0.47 (5%) separates the cheapest from the runner-up. Free USPS home pickup or a closer drop-off can erase this gap. Pick by convenience, not price, at this margin.
Side by side
Shippo and Stamps.com, at a glance
- Starting price
- $0 + $0.05/label
- $19.99/mo
- Free tier
- Yes
- No
- Supported carriers
- USPS, UPS, FedEx, DHL Express, Canada Post, Australia Post
- USPS, UPS
- Best for
- Developers and brands that need a shipping API for a custom checkout or dashboard.
- Businesses printing 20+ USPS labels per day who want maximum postage discounts.
Scenarios · End-of-month math
Which tool costs less at your volume
Postage medians come from our live rate tracker. Tool fees use each product's current published pricing. Winners are where the fee saves more labor than it costs.
Side hustle
30 orders / month
Single platform, mostly 12 oz small parcels in padded mailers.
Shippo
30 × $0.05 = $1.50
- 30 × 12 oz @ $5.88
- $176.40
- Tool fee
- $1.50
Monthly $177.90
Stamps.com
$19.99/mo plan
- 30 × 12 oz @ $5.88
- $176.40
- Tool fee
- $19.99
Monthly $196.39
Verdict Shippo at this volume, difference of $18.49 per month.
Growing shop
120 orders / month
Two platforms, mix of 1 lb accessories and 5 lb boxed units.
Shippo
120 × $0.05 = $6.00
- 70 × 1 lb @ $6.85
- $479.50
- 50 × 5 lb @ $7.15
- $357.50
- Tool fee
- $6.00
Monthly $843.00
Stamps.com
$19.99/mo plan
- 70 × 1 lb @ $6.85
- $479.50
- 50 × 5 lb @ $7.15
- $357.50
- Tool fee
- $19.99
Monthly $856.99
Verdict Shippo at this volume, difference of $13.99 per month.
Multi-channel brand
500 orders / month
3+ marketplaces, 80% small packages, 20% medium.
Shippo
500 × $0.05 = $25.00
- 400 × 1 lb @ $6.85
- $2740.00
- 100 × 5 lb @ $7.15
- $715.00
- Tool fee
- $25.00
Monthly $3480.00
Stamps.com
$19.99/mo plan
- 400 × 1 lb @ $6.85
- $2740.00
- 100 × 5 lb @ $7.15
- $715.00
- Tool fee
- $19.99
Monthly $3474.99
Verdict Stamps.com at this volume, difference of $5.01 per month.
When each wins
When Shippo is the right pick
- Powerful API, the rails behind many DTC brands
- Pay-as-you-go option (no monthly fee required)
- Works across 85+ carriers internationally
When Stamps.com is the right pick
- Deepest USPS commercial-plus pricing among the big five
- Mature integrations with QuickBooks, Amazon, eBay, Etsy
- Sign-up offer: $100+ in offers for new subscribers, no coupon code required
At light volume, cost is dominated by postage, not software fees. At heavy volume, fees stay constant while postage compounds.
The tool decision is actually the volume-curve decision. Pick based on where your orders are going, not where they are now.