Staxly

Paddle vs Convex

Merchant of Record for SaaS — global tax, billing, checkout in one
vs. The reactive database where queries are TypeScript code

Paddle websiteConvex website

Pricing tiers

Paddle

Pay-as-you-go
5% + 50¢ per Checkout transaction. No monthly fee. All-inclusive (tax, fraud, support).
$0 base (usage-based)
Enterprise
Custom rates for high-volume. Dedicated success. Custom migration + implementation.
Custom
Invoicing (<$10 products)
Custom pricing for invoicing / products under $10.
Custom
Paddle website

Convex

Starter (Free)
Free with overage via usage-based billing. Great for prototypes.
Free
Professional
$25/developer/month. Overage: $2/M function calls. Daily backups, email support, custom domains.
$25/mo
Business / Enterprise
From $2,500/month. SAML/SSO, SLA, dedicated deployments, Slack Connect support.
$2500/mo
Convex website

Free-tier quotas head-to-head

Comparing payg on Paddle vs starter on Convex.

MetricPaddleConvex
db storage gb0.5 GB
deployments40 deployments
egress gb month1 GB/month
file storage gb1 GB
function calls month1000000 calls/month
team members6 users

Features

Paddle · 12 features

  • Affiliates (Rewardful partnership)Affiliate tracking (via partner).
  • Customer PortalSelf-service subscription management.
  • Fraud ProtectionML + human review. Paddle absorbs chargebacks.
  • Global Tax ComplianceAutomatic VAT/GST/sales tax calc + remittance + filing.
  • One-time SalesPerpetual license sales, single purchases.
  • Paddle CheckoutHosted or overlay checkout. Localized + fraud-protected.
  • Paddle RetainRevenue recovery + cancel flows (acquired Retain).
  • ProfitWell AnalyticsIncluded subscription analytics (acquired ProfitWell).
  • Self-Serve InvoicesB2B invoicing with custom POs.
  • Smart DunningRetry logic + email sequences for failed payments.
  • SubscriptionsFull lifecycle: trials, changes, cancellations, recovery.
  • WebhooksStandard resource events with HMAC signing.

Convex · 18 features

  • ActionsNon-deterministic functions for external I/O (fetch, AI APIs, email). Cannot rea
  • AuthenticationConvex Auth (built-in) or BYO provider (Clerk, Auth0, Kinde, WorkOS). ID tokens
  • Convex AgentsAI agent framework with durable memory, threads, tool use. Works with OpenAI / A
  • Convex AuthFirst-party auth library: passwords, magic links, OAuth, phone — stored in your
  • Convex ComponentsReusable backend modules (rate limiter, workflow, aggregate, action-retrier, etc
  • Cron JobsRecurring schedules defined in convex/crons.ts. UTC, cron-style patterns.
  • Durable WorkflowsLong-running multi-step workflows with retries and at-least-once guarantees.
  • Exception ReportingAuto-capture errors to Sentry, Axiom, Datadog.
  • File StorageUpload/download via storage API. Returns storage IDs referenced in documents.
  • Full-Text SearchBM25 search index on table fields. withSearchIndex query helper.
  • HTTP ActionsExpose public HTTP endpoints for webhooks, OAuth callbacks, third-party integrat
  • Log StreamsStream function logs to Axiom, Datadog, Sentry. Pro+.
  • MutationsTransactional write functions. All reads + writes in one mutation are ACID; conf
  • Preview DeploymentsEvery Git branch gets its own isolated deployment. Integrates with Vercel/Netlif
  • QueriesDeterministic read-only TS functions. Automatically cached and re-run when under
  • Real-Time SubscriptionsuseQuery auto-subscribes; server invalidates when data a query read changes. No
  • Schedulerschedule.after / schedule.at — enqueue functions to run later. Durable, survives
  • Vector SearchNative vector index on tables. withIndex + filter fields. Up to 4096 dims.

Developer interfaces

KindPaddleConvex
CLIConvex CLI
SDKPaddle.js, @paddle/paddle-node-sdk, paddle-pythonAndroid / Kotlin Client, iOS / Swift Client, JavaScript/TypeScript Client, Next.js Integration, Python Client, React Client (useQuery), Rust Client, Svelte Client, Vue Client
RESTPaddle Billing APIDeploy / Dashboard API, HTTP Actions
OTHERPaddle Checkout, Paddle WebhooksWebSocket Subscriptions
Staxly is an independent catalog of developer platforms. Outbound links to Paddle and Convex are plain references to their official websites. Pricing is verified against vendor pages at publication time — reconfirm before buying.

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