Comparison

Brex vs Kintsugi AI

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Brex

Manage corporate finances with integrated business accounts, corporate cards, and expense tracking. Streamline reimbursements, payments, and business travel all from a single platform.

Highlights
  • Corporate cards
  • Expense management
  • Reimbursements
  • Business accounts
  • Business travel booking
  • Global payments
  • 24/7 live support
Features
Read full description

Brex offers corporate cards, expense management, reimbursements, business accounts, and travel — all on one unified, global platform. The Brex mobile app gives you full, fast access to your Brex account and card. Use the app to make purchases, check spending limits and policies, submit expenses, request or approve reimbursements, send payments anywhere, and more. Download the free Brex app to: • Use your card without reaching for your wallet • Easily check what’s allowed per your expense policy • See any pending tasks at a glance in your inbox • Add missing receipts (many are added automatically!) • Book and manage business travel with global inventory • Send and receive ACH and wire payments anywhere • Store funds in an FDIC-insured business account • Schedule or cancel recurring or one-time payments • Reach live support 24/7 from anywhere Brex accounts also integrate with your existing tools, including QuickBooks, NetSuite, Workday, Coupa, Gusto, WhatsApp, and Slack, to help you streamline workflows and close the books faster Download the app or visit brex.com to get started.

About

Kintsugi AI

This app provides instant access to your sales tax compliance status and potential liabilities. It offers a daily briefing, state-by-state exposure breakdown, and insights into sales data. Connect your data sources and get AI-powered assistance for sales tax inquiries.

Highlights
  • Sales tax liability dashboard
  • Daily briefing on changes
  • State-by-state exposure view
  • Review sales data
  • Monitor data source health
  • AI sales tax assistant
  • Customizable notifications
Features
Read full description

Kintsugi puts your sales tax position in your pocket. Sales tax compliance moves fast: revenue crosses an economic nexus threshold in a state you weren't watching, a storefront stops syncing, a filing deadline arrives. Kintsugi keeps all of it one tap away, so you always know where you stand between logins to the full web app. DASHBOARD See your potential tax liability and current compliance status the moment you open the app. The Kin Daily Briefing summarizes what changed and what needs attention today, and the potential exposure view breaks down your position state by state so approaching nexus thresholds never surprise you. SALES Review a trailing six-month view of your business at a glance. Toggle between total sales value and transaction count, and drill into any month for a per-month breakdown. DATA SOURCES Every connected system in one list — ecommerce storefronts, payment processors, billing platforms, and accounting tools. Each source shows its health, its transaction volume, and the date range it has actually imported, so a silently broken connection surfaces immediately instead of at filing time. ASK KIN KIN is your sales tax assistant, grounded in your own data. Ask it why your liability changed, what a state's nexus rules mean for you, or what to do about a notice you received. Type your question, dictate it with your voice, or attach a photo or document of a notice for KIN to read. STAY INFORMED Get notified about the events that matter to you, with per-category control over exactly what reaches your phone. Kintsugi is designed for finance and accounting teams who need their sales tax position to be legible at a glance. An existing Kintsugi account is required to sign in.

Screenshots

Brex4 screens
Kintsugi AI4 screens

Verdict

The call

The clearest difference is review sentiment: Kintsugi AI at 100% against Brex's 44%. Kintsugi AI also leads on rating (5.0 vs 4.8). Brex's advantage is ratings volume (8.8K vs 5). On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Kintsugi AI holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Brex has 8.8K ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 44% of Brex's written reviews are positive against 100% of Kintsugi AI's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 18, 2026 and October 5, 2026 respectively.

Scorecard3 real differences · 7 level
Brex versus Kintsugi AI: the parameters behind the verdict, then further details
ParameterBrexKintsugi AI
PriceFreeFree
Rating4.8 (8.8K ratings)5.0 (5 ratings) — better
Positive reviews44.3% of reviews100.0% of reviews — better
Number of ratings8.8K — better5
Update frequencyWeeklyWeekly
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhoneiPhone, iPad — better
Requires iOS16.416.4
Further details — not scored
Size144 MB45 MB
Age rating4+17+
DeveloperBrexKintsugi AI

Customer experience

Brex

All ratings8,835 ratings
Positive96.2%
Neutral1.0%
Negative2.8%
Written reviews140 reviews
Positive44.3%
Neutral2.9%
Negative52.9%

Kintsugi AI

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Brex

Reported bugs

4 issues
  • Check deposit issues
  • Incorrect transaction categorization
  • Unreliable account linking
  • Inconsistent app behavior

Requested features

4 requests
  • Ability to change flights directly in the app
  • Improved iPad support
  • Restore gold card in Apple Wallet
  • Searchable transaction history in the app

Kintsugi AI

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Brex

No in-app purchases

None

Kintsugi AI

No in-app purchases

Questions

Is Brex free?
Brex is free to download, with no in-app purchases.
Is Kintsugi AI free?
Kintsugi AI is free to download, with no in-app purchases.
Which has better reviews, Brex or Kintsugi AI?
Kintsugi AI is rated higher. Brex averages 4.8 out of 5 from 8.8K ratings, while Kintsugi AI averages 5.0 from 5 ratings.
Do Brex or Kintsugi AI have ads?
Neither Brex nor Kintsugi AI shows ads.
Which is updated more often, Brex or Kintsugi AI?
Brex ships an update weekly, and Kintsugi AI weekly. Most recently, Brex was updated on October 18, 2026 and Kintsugi AI on October 5, 2026.

Other comparisons