LetterStream vs Lob
An independent, review-free comparison compiled by the SaaSTracker editorial team. Both products are profiled in full, and neither can pay for placement here.
The short answer
Editorial assessmentLetterStream compared with Lob
Lob is programmatic marketing and transactional mail infrastructure with postcards from $0.615 at volume, an eight-event tracking feed, and a genuine developer platform, but it cannot send Certified Mail with a return receipt. LetterStream costs about double per ordinary piece and has almost no marketing tooling. Run your volume through Lob and route your legally significant notices through LetterStream; most businesses that need both should simply hold both accounts.
Choose LetterStream if
Any small business, law firm, property manager, HR team, or collections operation that needs Certified Mail with documented proof of delivery, and anyone who wants occasional letters printed and posted without a subscription, a minimum, or a marketing platform attached.
Choose Lob if
Developer-led teams and ecommerce or fintech operations that need physical mail triggered by application events at volume, and any small business that wants to send a few thousand pieces a year at under a dollar each without hiring a print vendor.
Side by side
13 attributes| Attribute | LetterStream | Lob |
|---|---|---|
| Category | Gifting | Gifting |
| Starting price | $0 per month, with Express postcards from $0.91 and First-Class letters from $1.27 (free plan available) | $0 per month with postcards at $0.905 each (free plan available) |
| Pricing model | Pure pay-per-piece with a free account, no monthly fee, and no minimum quantity. Base rates include printing, envelope insertion, and postage; every enhancement is priced separately per piece. | Freemium platform plan plus per-piece pricing. The plan fee buys an annual volume allowance, a seat count, and lower per-piece rates; postage is included in the per-piece price through presorted mail classes. Address verification is metered separately. |
| Free plan | The account itself is free with no monthly fee, no minimum quantity, and no commitment. There is no subscription tier of any kind. | Developer: $0 per month, one user, up to 6,000 mailings per year at standard rates (postcard $0.905, letter $0.828, check $1.190). |
| Free trial | No trial needed; the account is free and you pay only for the mail you send | No time-limited trial; the free Developer plan is the evaluation path and is a usable production plan |
| Best for | Any small business, law firm, property manager, HR team, or collections operation that needs Certified Mail with documented proof of delivery, and anyone who wants occasional letters printed and posted without a subscription, a minimum, or a marketing platform attached. | Developer-led teams and ecommerce or fintech operations that need physical mail triggered by application events at volume, and any small business that wants to send a few thousand pieces a year at under a dollar each without hiring a print vendor. |
| Setup time | Under thirty minutes for a first job. Create a free account, upload a document and an address list, choose a mail class and options, and submit. API integration takes a developer a day or so using the published sample code. | An afternoon for a developer to make the first live send: create an account, take the test key, render a template, switch to the live key. A production lifecycle mail program with triggers, verification, and webhook handling is a one to two week engineering project. |
| Learning curve | Low for the web workflow and moderate for the postal specifics. The parts worth understanding are what Certified Mail with and without a return receipt actually proves, how extra ounces are triggered by return envelopes and page counts, and when the 3pm Arizona cutoff applies to your deadline. | Low for developers, high for everyone else. HTML templates and REST calls are familiar territory if you write code and completely foreign if you do not. Marketing teams typically need engineering support for the initial build and can then operate campaigns from the dashboard. |
| Platforms | Web application, Mailing API, Document and list upload, Rush processing path | REST API, Web dashboard, Webhooks, HTML template engine |
| Compliance | HIPAA certified, USPS CASS and NCOA processing, BBB A plus accredited | SOC 2 Type 2 (independently audited), HIPAA and HITECH support, Industry-standard encryption in transit and at rest |
| Founded | 2003 | 2013 |
| Headquarters | Scottsdale, Arizona | San Francisco, California, United States |
| Ownership | Privately held, led by president and chief executive David Patterson | Venture-backed |
Strengths and limitations
LetterStream
Strengths
- Certified Mail with Electronic Return Receipt and FedEx 2Day with signature confirmation, which is the legally usable proof of delivery no other vendor in this category offers.
- No monthly fee, no minimum, and no commitment of any kind, so an account that sends twelve pieces a month costs nothing but the twelve pieces.
- Real CASS and NCOA address cleanup as a list service, which is proper postal hygiene rather than a validation checkbox.
- HIPAA certification, allowing patient statements and health notices to route through the platform when most marketing mail vendors cannot touch them.
Limitations
- No marketing layer at all. No campaign builder, no drip triggers, no CRM integrations, no personalized URLs, no QR code tracking, and no attribution reporting.
- Per-piece rates for ordinary mail are roughly double the programmatic platforms, so any marketing volume routed here is overpaying substantially.
- Standard First-Class mail has no tracking, so unless you pay for Certified or FedEx you cannot prove anything about a specific piece.
- The add-on model means the headline rate understates a realistic job. Colour, extra pages, return envelopes, and extra ounces stack quickly.
Lob
Strengths
- A free production plan covering up to 6,000 mailings a year, which lets a small business run real direct mail with no platform fee at all.
- Per-piece pricing under a dollar with postage included, roughly three to four times cheaper per delivered piece than handwritten-note vendors and far below any gifting platform's cost per touch.
- The best attribution in the category: eight tracking events per piece delivered through the API and webhooks, keyed to your own record identifiers, so a controlled experiment is genuinely possible.
- A distributed Print Delivery Network with Postal IQ routing, GRACoL color standards, and monthly printer quality reviews, which is infrastructure no individual buyer could assemble.
Limitations
- It is not a gifting platform in any sense: no catalog, no recipient choice, no gift cards, no spend approvals, and no fulfilment of physical products.
- Nothing it produces looks handwritten. If the goal is a piece that reads as personal correspondence, Lob is the wrong tool no matter how good the print quality is.
- It requires engineering time. The dashboard exists but the product is an API, and non-technical marketing teams will not get value from it without a developer.
- The print network is US-based, so international mailing is not the use case despite international address verification being available.
Pricing compared
LetterStream
Pure pay-per-piece with a free account, no monthly fee, and no minimum quantity. Base rates include printing, envelope insertion, and postage; every enhancement is priced separately per piece.
- Free account, pay per piece$0
For marketing mail, LetterStream is poor value: $1.27 a letter and $1.30 a Pro postcard is roughly double what Poplar or Lob charge for a comparable piece, and there is no campaign layer to justify it. For legally significant mail it is excellent value and effectively uncontested in this category. Certified Mail with Electronic Return Receipt at $8.63 replaces a person, a queue, a green card, and a filing cabinet, and the free account with no minimum means a firm sending twelve notices a month pays nothing but the postage. The lesson most buyers should take is that this is a second vendor rather than a first one: run your campaign volume somewhere cheap and route the pieces that have to hold up in a dispute through here.
Lob
Freemium platform plan plus per-piece pricing. The plan fee buys an annual volume allowance, a seat count, and lower per-piece rates; postage is included in the per-piece price through presorted mail classes. Address verification is metered separately.
- Developer$0
- Startup$260
- Growth$550
- EnterpriseCustom
Per physical touch delivered, Lob is the cheapest option in this category by a factor of three or four, and the free plan means a small business can run 6,000 pieces a year for nothing but per-piece cost. That comparison is not entirely fair, because a Lob postcard and a handwritten note are not the same product, and neither is a gift. What is fair to say is that if the piece does not need to look personal, paying $3.58 for a handwritten card or a platform fee for a gifting seat is money spent on a format decision rather than on reaching the recipient. Lob is also the only vendor here with SOC 2 Type 2, HIPAA-capable routing, and eight tracking events per piece, which makes it the value leader on infrastructure quality as well as price.
Editorial verdict on each
LetterStream
LetterStream is the specialist you hold an account with rather than the platform you run your programme on. For marketing mail it is roughly double the price of the programmatic platforms with none of the campaign tooling, and nobody should route campaign volume through it. For anything that has to be provably served, it is close to uncontested in this category: Certified Mail with Electronic Return Receipt, FedEx signature confirmation, real CASS and NCOA cleanup, HIPAA certification, a published two business day guarantee, and a free account with no subscription and no minimum. Law firms, property managers, collections operations, medical practices, and membership organisations should open an account today, because it costs nothing until you use it. Everyone else should pair it with a cheap programmatic vendor and use each for the job it is actually good at.
Read the full LetterStream profileLob
Category LeaderLob is not a gifting platform and does not pretend to be, but it is the strongest piece of physical mail infrastructure a small business can get for free. Six thousand mailings a year at under a dollar each with postage included, eight tracking events per piece, address verification, SOC 2 Type 2, and HIPAA-capable print routing is a stack that nothing else in this category comes close to. The price of admission is engineering time and the acceptance that nothing you send will look handwritten. Buy it if physical mail is a lifecycle or transactional channel in your product and you have a developer. Do not buy it if what you actually need is a gift, a personal note, or an address you do not have, because Lob solves none of those problems and three other vendors here do.
Read the full Lob profileLetterStream profile last reviewed 2026-08-22; Lob last reviewed 2026-08-22. Pricing is compiled from public sources and can change without notice. See our methodology.