Flex, Pay With HSA/FSA vs Medpaid HSA | FSA
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 1, 2026 for Flex, Pay With HSA/FSA, Nov 14, 2026 for Medpaid HSA.
The short answer
- On the Shopify App Store: Flex, Pay With HSA/FSA 5.0 from 7 reviews and Medpaid HSA 5.0 from 1 reviews.
Head to head
- United States
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Free
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureFlex allows merchants that qualify to accept HSA/FSA as a payment option directly in the checkout flow.
Medpaid makes it easy for your customers to purchase eligible health and wellness products using their preferred payment method and then get reimbursed through their HSA/FSA. Our doctor-led review process evaluates your products and determines eligibility based on ingredients and health benefits.
- Accept HSA/FSA payments directly in the checkout flow
- Auto-substantiate during checkout
- Qualify your product with a Letter of Medical Necessity
- Boost Customer Conversion & Retention
- Expand Your Market
- Increase Your Revenue
- Reconnect with Your Past Customers
All the numbers
Every figure, side by side
A green dot marks the app ahead on a measured figure. Estimates, gaps and apps that leave no storefront trace never take the lead.
Adoption
| Measure |  Medpaid HSA | |
|---|---|---|
| Detected stores | Not published | 3 |
| Net store change, 28 days | 0 | 0 |
| Stores added, 28 days | Not enough data | Not enough data |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Not published | Health & Beauty |
| Top store countries | Not published | United States |
Reviews
| Measure | Medpaid HSA | |
|---|---|---|
| App Store rating | 5.0 ★ | 5.0 ★ |
| App Store reviews | 7(ahead) | 1 |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | Medpaid HSA | |
|---|---|---|
| Free plan | Not listed | Not listed |
| Lowest paid monthly plan | No monthly plan listed | No monthly plan listed |
| Longest free trial | Not listed | Not listed |
| Plans listed | Not published | 1 |
Listing
| Measure | Medpaid HSA | |
|---|---|---|
| Shopify category rank | Not enough data | #72 |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Nov 15, 2023 | Mar 11, 2025 |
| Languages | 1 | 1 |
| Developer | Flex | Medpaid LLC |
FAQ
Flex, Pay With HSA/FSA and Medpaid HSA: common questions
- Which has better reviews, Flex, Pay With HSA/FSA or Medpaid HSA?
- On the Shopify App Store: Flex, Pay With HSA/FSA 5.0 from 7 reviews and Medpaid HSA 5.0 from 1 reviews.
- Where does this comparison’s data come from?
- Shoplist crawls Shopify storefronts to detect which apps each store runs, and reads each app’s Shopify App Store listing for reviews, pricing, features and integrations. Store counts are as of Nov 1, 2026 for Flex, Pay With HSA/FSA, Nov 14, 2026 for Medpaid HSA; estimated figures are labeled.
How Shoplist compares apps
Store counts come from Shoplist’s crawl of Shopify storefronts, which detects the apps each store runs; they are as of Nov 1, 2026 for Flex, Pay With HSA/FSA, Nov 14, 2026 for Medpaid HSA. Reviews, ratings, plans, features and integrations come from each app’s Shopify App Store listing. 28-day figures are labeled when estimated, and a figure that is missing or estimated never decides who leads. Read the methodology.