MRR.io alternativeChartsy vs MRR.io

The MRR.io alternative that shows where your MRR comes from

Chartsy tracks MRR, churn and LTV like MRR.io, connects six billing providers natively, and shows which marketing channels bring paying customers.

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14-day trial, no card. MRR.io details checked October 2026.

Short answer

Choose Chartsy if

  • You bill through Polar.sh, Freemius, Creem.io or Lemon Squeezy
  • You want to see which marketing channels bring paying customers
  • You want to ask Claude or ChatGPT about your revenue
  • You have many customers on a modest website

Choose MRR.io if

  • You have fewer than 100 paying customers and want the metrics free
  • You want forecasts of future MRR
  • You have few customers on a busy website

On Stripe or Paddle with a few hundred customers, both cost under $40 a month, so the deciding question is whether you need attribution or forecasting.

MRR.io details come from mrr.io and its API docs, checked in October 2026. Where MRR.io doesn't document something, we say so instead of guessing. Disclosure: Chartsy is our product. Both tools get the same fact card and the same “not ideal for” line.

Side by side

Chartsy vs MRR.io comparison table

FeatureChartsyMRR.io
Starting price (Oct 2026)$9/mo (Starter, 10k events)Free up to 100 paying customers; Pro from $19/mo
Priced onTracked website visits and signupsPaying customers
Free planNoUp to 100 paying customers
Trial14 days, no card30-day Pro trial, no card
StripeYesYes
PaddleBilling and ClassicYes; version not stated
Polar.sh, Freemius, Creem.io, Lemon SqueezyYesVia manual entry or API
Other billing systemsCustom Billing APIManual entry or read/write API
MRR, churn, LTV, MRR movementsYesYes
Cohort analysisCohort retention chartsPro
Forecasts of future MRRGoal pacing onlyPro
Failed charges metricNot documentedYes
Revenue by marketing channelYesNot documented
In-app AI assistant200 or 2,000 questions/moNot documented
MCP server for Claude, ChatGPT, CursorRead-only, 19 toolsNot documented
Email reportsWeekly report and daily briefingBasic; advanced on Pro
Team membersNot documented3 on Basic, unlimited on Pro
Why founders look elsewhere

MRR.io tells you what moved. Founders usually want to know why.

MRR.io is a solid, simple MRR tracker. These are the gaps that lead founders to look for an alternative.

  • Only Stripe and Paddle connect nativelyPolar.sh, Freemius, Creem.io and Lemon Squeezy sellers have to push data through MRR.io’s API. Chartsy connects all four natively.
  • No view of where paying customers came fromChartsy follows each customer from first visit to signup to payment, so you see MRR by channel, campaign and referrer.
  • Price rises with every customerMRR.io charges by paying customers. Chartsy charges by website events, so a business with many low-priced customers often pays less.
  • No AI or MCP access documentedChartsy has an in-app chat and a read-only MCP server, so you can ask Claude, ChatGPT or Cursor about your revenue.
Fact cards

MRR.io and Chartsy at a glance

Same fields for both tools, including what each one is not ideal for.

MRR.io

Best for: Small SaaS teams on Stripe or Paddle that want MRR, churn and LTV at no cost while they have fewer than 100 paying customers, with cohorts and forecasts as they grow.

MRR.io has been around since 2015 and does one thing: it turns billing data into subscription metrics. It connects natively to Stripe and Paddle and tracks MRR, churn, LTV, upgrades, downgrades, cancellations and failed charges. Pro adds cohort analysis, metric forecasts and advanced email reports. For other billing systems you enter data by hand or push plans, customers, subscriptions, charges, failed charges and refunds through its read/write API.

Pricing
Basic is free up to 100 paying customers and 3 team members. Pro by paying customers: $19/mo for 250, $39 for 500, $69 for 1,000, $129 for 2,500, $199 for 5,000, $299 for 10,000, then contact sales.
Free tier or trial
Free Basic plan; 30-day Pro trial, no card. Accounts over 100 paying customers that don’t upgrade lose access when the trial ends.
Billing sources
Stripe and Paddle natively; the site doesn’t say whether that means Paddle Billing, Paddle Classic or both. PayPal, Chargebee, Recurly, Braintree and others need manual entry or the API.
Metrics
MRR, churn, LTV, upgrades, downgrades, cancellations, failed charges. Cohorts and forecasts on Pro.
AI and MCP
None documented
Not ideal for
Merchant-of-record sellers on Polar.sh, Freemius, Creem.io or Lemon Squeezy (no native connector), and anyone who wants to know which marketing channels bring paying customers.

Chartsy

Best for: Founders who want an easy MRR dashboard plus revenue by marketing channel, especially on Paddle or a merchant of record like Polar.sh, Freemius, Creem.io or Lemon Squeezy.

Chartsy connects natively to six billing providers, syncs your last 24 months of history, and shows MRR, ARR, churn, LTV, NRR and ARPU with an MRR breakdown by new, expansion, contraction, churned and reactivated revenue. Several accounts, even on different providers, add up into one MRR number.

With revenue attribution, one script on your website follows each customer from first visit to first payment. The read-only MCP server lets you ask Claude, ChatGPT or Cursor about your revenue.

Pricing
Starter from $9/mo, Growth from $29/mo, priced on tracked website visits and signups rather than customers or revenue. Yearly billing gives two months free. (pricing)
Free tier or trial
14-day trial, no card. No free plan.
Billing sources
Stripe, Paddle Billing, Paddle Classic, Polar.sh, Freemius, Creem.io, Lemon Squeezy, plus a Custom Billing API. Two sources on Starter, 20 on Growth.
Metrics
MRR breakdown, churn, LTV, NRR, ARPU, plan and country breakdowns, cohort retention charts, goals with pacing, revenue by marketing channel.
AI and MCP
In-app chat and chart builder (200 questions/mo on Starter, 2,000 on Growth), and a read-only MCP server with 19 tools.
Sharing and reports
Share links, PDF export, weekly email report, daily briefing.
Privacy
GDPR mode keeps customer names and emails out of the sync (not available for Freemius).
Not ideal for
Teams with fewer than 100 paying customers who only need the basic metrics and want them free, teams that want forecasts of future MRR, and Paddle Classic sellers who need revenue by channel.
Pricing

What each costs at your stage

MRR.io goes by paying customers; Chartsy goes by tracked website events (visits and signups), whatever your customer count. Which is cheaper depends on your business.

MRR.io (monthly)

Paying customersPrice
Up to 100Free
250$19
500$39
1,000$69
2,500$129
10,000$299

Chartsy (monthly)

Monthly eventsStarterGrowth
10,000$9$29
100,000$29$49
500,000$59$109
1,000,000$79$149
  • 80 customers, low traffic: MRR.io is free; Chartsy is $9/mo.
  • 400 customers, 10,000 events a month: MRR.io is $39/mo; Chartsy Starter is $9/mo.
  • 2,500 low-priced customers, 100,000 events a month: MRR.io is $129/mo; Chartsy Starter is $29/mo.
  • 150 high-value customers, 500,000 events a month: MRR.io is $19/mo; Chartsy Starter is $59/mo.

Rule of thumb: many customers on a modest site favours Chartsy; few customers on a busy site favours MRR.io.

Decide

Which should you choose?

  • You have fewer than 100 paying customers and want the basicsMRR.io’s free plan.
  • You want forecasts of future MRRMRR.io Pro.
  • You’re on Polar.sh, Freemius, Creem.io or Lemon SqueezyChartsy, which connects all four natively. With MRR.io you’d push data through its API.
  • You’re on Paddle ClassicChartsy supports it explicitly. MRR.io doesn’t say which Paddle version it connects.
  • You want to know which channels bring paying customersChartsy. See revenue attribution for SaaS.
  • You have thousands of low-priced customersRun the numbers above. Customer-based pricing climbs fastest for you.
Other options

Other MRR.io alternatives

Prices from each vendor’s pricing page, October 2026.

ChartMogul

Best for: The most complete pre-built subscription metrics on mainstream billing systems.

Free up to $10K MRR, then from $69/mo. 30+ billing integrations; Paddle connects through a third-party connector. See ChartMogul alternative.

Baremetrics

Best for: A polished Stripe dashboard with forecasting and optional dunning.

From $75/mo on monthly billing, priced by ARR, with $129/mo add-ons. No native Paddle connector. See Baremetrics alternative.

ProfitWell Metrics

Best for: Free standard metrics on Paddle Billing or Stripe Billing.

Free, now part of Paddle. Unused accounts are deleted after 12 months. See ProfitWell alternative.

Before you switch

Why the two may show different MRR

If you trial both, don't expect the numbers to match to the dollar. Subscription analytics tools differ on trials, discounts, past-due payments, cancellations at period end and currency conversion. Chartsy's rules are documented in How We Calculate MRR at Chartsy. MRR.io doesn't publish an equivalent methodology page, so compare a single month subscription by subscription to find where any gap comes from.

How we compared

What this page answers, and how

Questions founders ask

  • Is MRR.io free, and when do I have to pay?
  • Which is cheaper for my number of customers and my traffic?
  • Do they support Paddle Billing, Paddle Classic, Polar.sh or Lemon Squeezy?
  • Which one has cohort analysis and forecasting?
  • Can either show which marketing channel a paying customer came from?
  • Can I connect either one to Claude or ChatGPT?
  • What if my billing system isn't supported?

How we compared the tools

  1. Price at your stage. And what it is priced on: MRR.io charges by paying customers, Chartsy by tracked website visits and signups.
  2. Billing integrations. Which connect natively and which need manual entry or an API.
  3. Metrics. MRR, churn, LTV and the MRR movement breakdown, plus cohorts and forecasts.
  4. Beyond revenue. Marketing attribution, reports, sharing and privacy.
  5. AI and MCP. In-app assistants and connections to Claude, ChatGPT or Cursor.
FAQ

Frequently asked questions

What is the best MRR.io alternative?

For Polar.sh, Freemius, Creem.io or Lemon Squeezy sellers, or anyone who wants revenue by marketing channel: Chartsy. For the deepest pre-built metrics on mainstream billing systems: ChartMogul. For free standard metrics on Paddle Billing or Stripe Billing: ProfitWell Metrics.

Is MRR.io free?

Yes, up to 100 paying customers and 3 team members, with all metrics included. Pro, which adds cohorts, forecasts and unlimited customers, starts at $19/mo for 250 paying customers.

Is Chartsy cheaper than MRR.io?

It depends on your customer count and website traffic. Under 100 customers, MRR.io is free and Chartsy isn’t. With many customers and modest traffic, Chartsy is cheaper: 2,500 customers on 100,000 monthly events is $29/mo on Chartsy and $129/mo on MRR.io.

Does MRR.io support Polar.sh, Lemon Squeezy, Creem.io or Freemius?

Not natively. MRR.io connects Stripe and Paddle; everything else goes through manual entry or its API. Chartsy connects all four natively.

Does MRR.io support Paddle Billing or Paddle Classic?

MRR.io lists Paddle as a native integration but doesn’t say which version. Chartsy supports both Paddle Billing and Paddle Classic.

Which one shows revenue by marketing channel?

Chartsy. A website script connects each visit to the signup and the payment, so you see MRR by channel, campaign and referrer. MRR.io reports on billing data only.

Can I connect MRR.io or Chartsy to ChatGPT or Claude?

Chartsy, through a read-only MCP server with 19 tools and OAuth or token sign-in. We found no MCP server or AI assistant documented for MRR.io.

Does Chartsy have cohort analysis and forecasting like MRR.io?

Cohorts, yes: you can add cohort retention charts to a custom dashboard. Forecasting, not in the same form. Chartsy tracks goals and shows whether you’re on pace to hit them, but it doesn’t project future MRR. If metric forecasts matter most, MRR.io Pro is the better fit.

See your MRR and where it came from.

Connect Stripe, Paddle, Polar.sh, Freemius, Creem.io or Lemon Squeezy in minutes. 14-day trial, no card needed.

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MRR.io is a trademark of its owner. Chartsy is not affiliated with or endorsed by MRR.io.

Ministry of Economy and Innovation
Startup Albania

The Chartsy program is realized with the financial support of the Albanian Government through the Ministry of Economy and Innovation, under the Grant 2026 scheme, and is implemented by the Innovation4Albania Agency.