Reviewed August 27, 2026
Truemed, Flex Health, and Burst support HSA/FSA checkout or reimbursement and can connect buyers with clinicians for Letter of Medical Necessity evaluations. Burst says it can handle the reimbursement claim, appeals, and subsequent TPA issues, including for eligible products or services outside a partnered-brand list. Pricing and workflow vary by platform, product, and merchant. An LMN can support a qualifying medical-purpose expense, but the account administrator makes the final decision.
Already made the purchase? Start the record now. Otherwise, compare the options below first.
There is no universal best platform. Start with the merchant you want to buy from, use its supported flow, and compare the fee, payment path, refund terms, and documentation before proceeding.
Use that supported flow unless its disclosed terms do not work for you. Truemed, Flex, and Burst integrations are product- and merchant-specific, so a platform logo elsewhere is not proof it works for this purchase.
Look for an official post-purchase process tied to that merchant. Keep the original itemized receipt and proof of payment; do not assume a generic LMN covers the purchase.
Pause before paying with HSA funds. Ask the merchant or your administrator what documentation and reimbursement path apply to the exact product or service.
Avoid this mistake: Do not treat an LMN, an HSA-card checkout, or a platform's marketplace listing as a reimbursement guarantee. General wellness expenses remain ineligible unless they meet the medical-purpose rules for your facts.
Prices and checkout terms can change. Use this table to narrow the choice, then verify the current vendor or merchant page before paying.
| Option | Best for and tradeoff | Current published price | HSA and documentation note |
|---|---|---|---|
| Truemed | Best for: a merchant that currently offers a Truemed flow with terms that fit your purchase. | Varies by merchant; current consumer examples include $20 and $30 | Pricing varies. Current Truemed examples include $20 and $30 consumer fees, while some integrations charge the merchant. |
| Flex Health | Best for: a merchant using Flex or its current gym/studio reimbursement product. | Varies by product; current gym/studio reimbursement example is $15 | Pricing varies by product and merchant. Current gym/studio reimbursement pricing lists a $15 customer LMN fee. |
| Burst | Best for: an end-to-end LMN and reimbursement-support flow, including claim filing and appeals, or a merchant that wants a no-checkout-change option. | Current public LMN request price is $35; merchant programs may differ | Burst says customers can request an LMN for any eligible product or service, not only partnered brands, and that Burst files claims, manages appeals and subsequent TPA issues, and refunds its LMN fee if a claim is denied. Current public consumer LMN request pricing is $35. Merchant programs and reimbursement terms can differ, so verify the exact flow. |
We compare official merchant and platform flows, not commission status. Published fee examples are labeled as examples, and eligibility guidance is checked against the IRS medical-purpose standard.
Merchant-specific HSA/FSA payment, reimbursement, and LMN evaluation flows.
Best for: a merchant that currently offers a Truemed flow with terms that fit your purchase.
Varies by merchant; current consumer examples include $20 and $30
Merchant-specific HSA/FSA checkout and reimbursement flows, including gyms and studios.
Best for: a merchant using Flex or its current gym/studio reimbursement product.
Varies by product; current gym/studio reimbursement example is $15
LMN, reimbursement-claim, and appeals support for eligible HSA/FSA purchases, including direct and merchant flows.
Best for: an end-to-end LMN and reimbursement-support flow, including claim filing and appeals, or a merchant that wants a no-checkout-change option.
Current public LMN request price is $35; merchant programs may differ
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After you choose, save the itemized receipt, proof of payment, and any prescription or LMN in one proof-ready record. HSA Trackr organizes the evidence but does not determine reimbursement.
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