Free
$0/month
For trying out
Both products target developers, but bundle.social is the better fit when account growth, customer tenancy, SDK, CLI, MCP, analytics, comments, webhooks, and publishing support need to sit inside your own product.
Last updated
Pricing reality
Zernio uses graduated per-account billing and passes through X API costs separately, so each band is priced on its own. bundle.social never charges per connected account, on any plan.
| Connected accounts | Zernio | bundle.social |
|---|---|---|
| First 2 accounts | $0Free on both sides, with the full listed feature set. | $0 |
| Accounts 3 to 10 | $6 / account / monthThe first paid band. Only accounts in this range use this rate. | $0 |
| Accounts 11 to 100 | $3 / account / monthA lower marginal rate once the first band is full. | $0 |
| Accounts 101 to 2,000 | $1 / account / monthThe cheapest band, and still a line item per account. | $0 |
| At 100 accounts | $318 / month | $0 |
| At 500 accounts | $718 / month | $0 |
| At 2,000 accounts | $2,218 / month | $0 |
Totals modeled from Zernio's published bands as verified in July 2026 (8 x $6 + 90 x $3 + the remainder at $1), excluding X API pass-through. bundle.social plan pricing is listed below and does not change with account count.
Every paid plan includes unlimited connected social accounts; the free plan is the only tier with a cap. Cost scales with publishing volume, not with how many accounts your customers connect.
Free
$0/month
For trying out
Pro
$100/month
For power users
Business
$400/month
For growing businesses
Enterprise
Custom
For large organizations
Short version
Compare Zernio with bundle.social for API-first publishing, account-based pricing, multi-tenant operations, platform coverage, webhooks, analytics, errors, and support.
Zernio
Zernio is a developer-first social API with graduated per-account pricing and a broad feature list that includes Ads and DMs.
bundle.social
bundle.social includes unlimited connected social accounts. Your costs grow with publishing volume, not with every customer who connects another account.
Unlimited connected social accounts on every paid plan
No per-account or per-workspace billing on the social media API
Organizations and teams designed for customer-facing products
Verbose platform errors that can be shown inside your own support UX
SDK, CLI, MCP, analytics, comments, webhooks and technical help for OAuth, media, and failed posts
Evaluation
bundle.social already covers the core developer surface for embedded publishing: API, SDK, CLI, MCP, scheduling, media, analytics, comments, webhooks, history, and platform-specific errors. The important Zernio exception is Ads and DMs, which should stay out of scope until bundle.social's waitlist APIs are public.
Zernio gives two accounts free, then charges for every additional active account. The rate drops from $6 to $3 and later $1, but the bill still increases when customers connect more accounts. This works for agencies that charge per profile. It is expensive for SaaS products that include many social accounts in one subscription.
Every paid bundle.social plan includes unlimited connected social accounts. Usage grows through posts and storage instead of profile count. That lets a product offer generous account connectivity, keep internal and client accounts in the same organization model, and avoid calculating margin every time a customer connects another network.
Export connected-account ownership and scheduled posts, calculate both vendors at realistic adoption levels, and replay representative image, video, carousel and invalid-media payloads. Compare state transitions, webhook timing and error detail before reconnecting customers. Leave DM and ads workflows in place until bundle.social support is actually public.
Comparison
Both are API-first. bundle.social does not increase your bill when customers connect more social accounts.
| Criteria | Zernio | bundle.social |
|---|---|---|
| Billing unit | Graduated price per connected account | Usage plans with unlimited connected social accounts |
| Free tier | First two connected accounts, full listed feature set | Free plan with API access, 20 posts per month and 3 social sets |
| Cost at 100 accounts | Every account past the second is billed, at $6 then $3 per account | Unchanged. Connected-account count does not enter the bill |
| Current scope | Publishing, analytics, engagement, DMs, ads, and messaging | Publishing, scheduling, comments, analytics, media, webhooks, and history |
| Ads and DMs | Available today across its listed ad networks and messaging platforms | Explicitly waitlist-only. Keep these workflows on your current vendor |
| Tenant model | Profiles and API workflows | Organizations, teams, users, and connected accounts |
| Failed posts | API error and status responses | Verbose platform-specific errors designed for customer UX |
| Developer surface | REST API, MCP server, and SDKs across several server languages | REST API, TypeScript SDK, CLI, and MCP server |
| Published SLA and rate limits | Uptime SLA and per-minute rate limits published on the marketing site | Public status page; rate limits documented in the API reference |
| X (Twitter) API cost | Passed through separately on top of the account bill | Passed through per post from a prepaid credit balance you control |
| Brand history | Rebranded from GetLate; some changelog URLs still carry the former name | One brand and one API surface since launch |
| Best fit | Agencies and products that can charge their own customers per profile | SaaS products that include many connected accounts in one subscription |
How to evaluate
Model the bill at 10, 100, 500, and 2,000 connected accounts before reading any feature list, because the account ladder decides this comparison more than endpoint parity does. Then check which side owns the customer record, how X API pass-through costs are billed, and what a failed post actually returns to your support team.
Migration path
Freeze new Zernio account connections first, then move publishing one customer at a time so the per-account bill winds down as traffic shifts. Keep both integrations live until webhook state and error payloads match, and leave Ads and DM traffic on Zernio until those bundle.social APIs ship.
Zernio charges for active accounts. bundle.social keeps connected social accounts unlimited and gives your product one API-first layer for publishing, scheduling, analytics, comments, media, webhooks, SDK, CLI, and MCP workflows.
Related comparisons
GetLate is the former name of Zernio. Existing packages and saved documentation may still use the old name, but new vendor decisions should compare the current Zernio model against bundle.social's account-unlimited publishing layer.
Ayrshare charges by customer profile and starts its production plans at a higher monthly price. bundle.social starts free and includes unlimited connected accounts, which makes it easier to launch and scale a new SaaS product.
Buffer is a good scheduler for people who want to start quickly. bundle.social is the better fit when social publishing is a capability inside your SaaS product, agency portal, automation, or AI product.
Compare bundle.social with 21 social media API, scheduler, and publishing vendors.
FAQ
Zernio bills per connected account in graduated bands: the first two accounts are free, accounts 3 to 10 cost $6 each per month, accounts 11 to 100 cost $3 each, and accounts 101 to 2,000 cost $1 each. X (Twitter) API costs are passed through separately. Modeled on those bands, 100 connected accounts is about $318 per month and 2,000 accounts is about $2,218 per month, verified July 2026.
Yes, once your product manages more connected accounts. Zernio charges for every active account after the first two, so 100 accounts is roughly $318 per month. bundle.social charges $0 per connected account and includes unlimited connected social accounts on every paid plan, so the same 100 accounts add nothing to the bill.
Ads and DM APIs are in development. Keep those workflows out of a bundle.social migration until the APIs are public, and use the waitlists to share the networks, objects, and events your product needs.
Test account connection, every required post type, webhook delivery, analytics, rate behavior, and intentional platform failures. Preserve any messaging or ads workflows that do not yet have a bundle.social replacement.
Related pages
One API for publishing, scheduling, media, analytics, and account workflows.
Publish platform-aware posts from your own product or automation.
Schedule posts across connected accounts without sending users to another dashboard.
Model customers, organizations, teams, and connected social accounts.
Ads workflows are in development. Join the waitlist and tell us what your product needs.
DM workflows are in development. Join the waitlist and describe your messaging use case.
Next step
Use bundle.social when social-account adoption should grow inside your product without becoming a matching per-account infrastructure bill.
Balanced view
Every comparison has cases that go the other way. These are the ones worth knowing before you move anything.
Before you migrate
Ads and DM APIs are waitlist-only in bundle.social today. Join the waitlists and tell us which networks, events, campaigns and conversation objects your product needs before planning those workflows into a migration.
This page is for teams that need embedded publishing and account-unlimited economics, not a per-account bill that grows with every customer connection.