Costs & Pricing

Metric	Marriott Bonvoy Business® American Express® Card	Fintech Platform Charge Cards
Annual fee	$125 (no first-year waiver published)	CATEGORY: Almost always $0 on public pages. EXAMPLE A Engine X: $0. EXAMPLE B Rho: $0. Adjacent Coast: platform fee $4 per active user / month (not a classic card AF).
Employee card fee	$0; up to 99 Employee Cards	CATEGORY: Usually $0. EXAMPLE A: $0; unlimited physical + virtual (marketing). EXAMPLE B: $0; unlimited physical + virtual.
Purchase APR	Prime + 12.74% to Prime + 21.74% (marketing 19.49%–28.49% variable at Prime 6.75% as of 1–2 Sep 2026). Placement by creditworthiness at opening. No intro APR.	CATEGORY: Usually absent — charge products, no revolving purchase APR. Marketing “0%” is almost always charge-card float, not a 12–18 month 0% intro APR. EXAMPLE A: N/A / not published. EXAMPLE B: None (paid in full Daily or Monthly).
Intro APR (purchases)	Not offered	CATEGORY: Not offered as classic intro APR. EXAMPLE A: not offered. EXAMPLE B: Daily = next-day debit; Monthly ≈ 30-day float — not intro APR.
Foreign transaction fee	$0	CATEGORY: Often missing from marketing; live in ToS / bank addendum. EXAMPLE A: silent on product page as of 3 Sep 2026 — dedicated Engine X bio extracts Program Terms FTF $0 (prefer Program Terms / dedicated bio). EXAMPLE B Rho: CONFLICT — help center says no FTF; ToS §2.4 may charge up to 1% on foreign transactions; network conversion may still apply. ToS wins. Adjacent Coast: 2.5% after USD conversion.
Late payment fee	Up to $39; will not exceed Minimum Payment Due	CATEGORY: Often not on marketing page. EXAMPLE A: not boxed on product page; dedicated Engine X bio extracts $40 per late payment from Program Terms eff. 4/1/2026. EXAMPLE B Rho: 3% of delinquent balance per month, up to 6 months, unless prohibited by law (ToS §2.4) + forfeit cash back for that period. Adjacent Coast: greater of 2.5% of past due or $35; after 31 days greater of 5% or $35.

Rewards & Value

Metric	Marriott Bonvoy Business® American Express® Card	Fintech Platform Charge Cards
Base earn rate	2 Marriott Bonvoy points per $1 on other eligible purchases (no published cap). Card-side points only — Marriott member-stay points are a program overlay, not a card rate.	CATEGORY: Varies widely; rarely as simple as Spark uncapped 2% cash. EXAMPLE A Engine X: 1.5% back in Engine points on everyday / off-Engine purchases. EXAMPLE B Rho Standard: 1.25% Daily Terms / 1.00% Monthly Terms. Adjacent Coast: fleet rebates + non-fuel ~1% (collect from Coast rewards page).
Welcome bonus	Up to 125,000 Bonvoy bonus points: 75,000 after $6,000 eligible purchases + 50,000 after an additional $3,000 ($9,000 total) within the first 6 months of Card Membership (live public offer, 3 Sep 2026). Rotates — 3+2 Free Night Awards have appeared in other cycles. Offer end date not printed on the Business page.	EXAMPLE A Engine X (live as of 3 Sep 2026): 20,000 Engine points after activate + spend $2,000 in the first 30 days. Conflict — Fit Small Business (14 Jul 2026) adds off-platform qualifier; open engine.com/x/spend-incentive-terms. No hard expire date on public hero. EXAMPLE B Rho: no live dollar welcome on official product page as of 3 Sep 2026; NerdWallet (26 Aug 2026) still shows $500 — secondary/possibly stale.
Redemption value	Issuer does not publish a cent value. Do not invent one. Industry write-ups often use ~0.6–0.9¢ on paid-night replacement; airline transfers often lower. Do not assume 1¢.	EXAMPLE A: points redeemable for flights, hotels, cars, statement credits via Engine; ¢/point Not disclosed; points have no cash value — do not assume 1¢. EXAMPLE B: statement credit at 1¢ per 1% after full on-time pay; must redeem within 12 months or forfeit (Rho will not notify); Daily Terms cash back typically posts around the 6th business day of the following month.
Transfer partners	Marriott Bonvoy airline partners at ~3:1 (not Membership Rewards). Not transferable to Amex MR.	Generally not offered in the Chase/Amex bank-card sense. Engine redemption is platform catalog. Rho is cash back.

Credit & Eligibility

Metric	Marriott Bonvoy Business® American Express® Card	Fintech Platform Charge Cards
Personal guarantee	Required in substance. CMA: Basic Cardmember and Company jointly and severally liable for all charges, including Employee Card use.	CATEGORY hallmark: typically No. EXAMPLE A: We also do not require personal guarantees (apply page). EXAMPLE B: No, Rho Cards do not require a personal guarantee / not currently required. Adjacent Coast: no PG.
Credit check	No personal-score impact to learn if approved. Personal score may be impacted if approved and the Card is accepted. Business credit may be impacted on submit.	EXAMPLE A: no hard pull; will not impact personal credit score; last-4 SSN for CIP/KYC. EXAMPLE B: no hard or soft check on your (personal) credit score when applying for credit with Rho (FAQ). Adjacent Coast: applying won’t affect personal credit score (marketing).
Employee cards	Up to 99 at $0 AF. Spend limits, merchant-type limits, real-time alerts, freeze/unfreeze, account graphs. Liability remains on Basic Cardmember + Company.	CATEGORY hallmark: physical + virtual with pre-spend controls. EXAMPLE A: limits by employee, project, category, transaction; 1099/contractor cards marketed; company (accountholder) liable. EXAMPLE B: unlimited virtual/physical; vendor-locked and single-use; per-card limits, merchant restrictions, freeze; international toggle. Adjacent Coast: GPS/odometer/fuel controls.
Product type	Revolving business credit card (not a charge card; not a spend-management / net-terms product)	CATEGORY: Commercial charge cards bundled with expense or operations software. Pay-in-full; no revolving purchase APR. Not consumer revolvers. EXAMPLE A: Engine X travel-platform charge card (spend tiers, not separate card SKUs). EXAMPLE B: Rho Corporate Card with Daily Terms vs Monthly Terms repayment and Rho Platinum cash-back overlay. Adjacent: Coast fleet charge card.

Pros & Cons

Marriott Bonvoy Business® American Express® Card

Pros

• $125 fee with an automatic annual Free Night (≤35,000 points) that can exceed the fee if redeemed against a high cash rate
• Complimentary Gold Elite + 15 ENCs without 25 paid nights
• 4X on four real small-business categories (worldwide restaurants, U.S. gas, U.S. wireless, U.S. shipping) with no published cap
• Up to 99 employee cards at $0 with limits and alerts; $0 FTF
• Apply-to-decision path that does not hit personal credit unless the Card is accepted

Cons

• $125 fee with no statement-credit offset; 35k Free Night cap plus dynamic pricing and resort fees
• Points are Marriott-locked; airline transfers are 3:1
• Purchase APR 19.49%–28.49% variable and no 0% intro — a poor revolver
• Personal / joint-and-several liability
• No lounge access, no Global Entry/TSA credit, thin trip-insurance stack vs premium Amex business cards

Fintech Platform Charge Cards

Pros

• $0 annual fee and $0 extra-card fee on Engine X and Rho (official pages, 2026)
• No personal guarantee; Engine and Rho state no personal hard pull (apply/FAQ)
• Engine X 6–10% points on Engine hotels/cars is a real category rate if that booking path is used
• Rho publishes cash-back math, exclusions, $1M cap, and 12-month redeem-or-forfeit
• Both issue virtual + physical cards with pre-spend controls; Engine decision timing published (24 hours typical)

Cons

• Not sole-prop products (Engine official; Rho commonly reported)
• Pay-in-full; Rho late fee 3%/month up to 6 months + rewards forfeiture
• Engine point cash value unpublished; 10% is not 10% cash
• Rho up to 2% is conditional (Platinum + Daily + on-time + domestic eligible MCCs)
• Insurance / lounge / Schumer-box items largely missing from public card pages; Engine FTF and late fee not boxed on /x

Verdict

Marriott Bonvoy Business® American Express® Card

This is the live U.S. Marriott business cobrand — not Bevy/Brilliant, not Chase Marriott Business (closed to new applicants), and not the Canadian $150 / 5X/3X/2X card. It pays when the firm actually sleeps Marriott and uses the Free Night. A hotel-agnostic shopper should use Ink Preferred, Business Gold, or a $0 2% cash card instead. Do not put Bonvoy member-stay points in the card earn column.

Fintech Platform Charge Cards

CATEGORY PATTERN — not one SKU. EXAMPLE A Engine X is also a dedicated bio in this set (prefer that page for Engine-only vs pages). EXAMPLE B Rho is the smaller banking-plus-card peer. Adjacent Coast is fleet-only. Measured against Ramp/Brex/Divvy, not a substitute for them. Anti-fit: sole props, 0% intro APR borrowers, and anyone treating up to 10% or up to 2% as unconditional cash. Re-verify welcome offers, FTF, and fee addenda before publish.