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The open gem draws charts. Pro works out what to draw. Included with every Rails UI subscription.

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What you're paying for

The math a dashboard runs on

Each of these is a day to write and a good deal longer to trust. They arrive tested.

Cohort grid: Signups grouped by month and followed forward, counted once per person however often they return.; RailsuiChartsPro::Cohort
Waterfall: A change in MRR split into new, reactivation, expansion, contraction and churn, reconciled to the total.; RailsuiChartsPro::Movement
Funnel: Every stage measured against the one above it and against the top, because those are different questions.; RailsuiChartsPro::Funnel
Forecast: The trend carried forward with a confidence band that widens the further out it goes.; RailsuiChartsPro::Forecast

Dashboard metrics

Start with the same dashboard foundation

The open gem handles the core metric card pattern. Pro adds the follow-up helpers a subscription dashboard reaches for once the first cards are on the page.

MRR

$18,450.00+8.21%

$17,050.00 previous period

Data for chart rui-chart-6467f1cd
Category	Comparison category	MRR	Previous period
Oct 31	Oct 24	17276.63	16053.88
Nov 1	Oct 25	17438.38	16182.9
Nov 2	Oct 26	17721.68	16324.6
Nov 3	Oct 27	17916.26	16455.54
Nov 4	Oct 28	18036.26	16727.35
Nov 5	Oct 29	18228.45	16934.0
Nov 6	Oct 30	18450.0	17050.03

Oct 31Nov 6

MRR

$18,450.00+8.21%

$17,050.00 previous period

Data for chart rui-chart-d1541d6f
Category	Comparison category	MRR	Previous period
Oct 31	Oct 24	17276.63	16053.88
Nov 1	Oct 25	17438.38	16182.9
Nov 2	Oct 26	17721.68	16324.6
Nov 3	Oct 27	17916.26	16455.54
Nov 4	Oct 28	18036.26	16727.35
Nov 5	Oct 29	18228.45	16934.0
Nov 6	Oct 30	18450.0	17050.03

ARR

$221,400.00+7.64%

$205,689.00 previous period

Data for chart rui-chart-83b0c0f2
Category	Comparison category	ARR	Previous period
Oct 31	Oct 24	207392.13	192129.9
Nov 1	Oct 25	210608.32	194200.61
Nov 2	Oct 26	212293.49	196293.64
Nov 3	Oct 27	214093.09	198837.87
Nov 4	Oct 28	217451.01	201460.48
Nov 5	Oct 29	218804.96	203640.03
Nov 6	Oct 30	221400.0	205689.35

Oct 31Nov 6

ARR

$221,400.00+7.64%

$205,689.00 previous period

Data for chart rui-chart-f23c76cf
Category	Comparison category	ARR	Previous period
Oct 31	Oct 24	207392.13	192129.9
Nov 1	Oct 25	210608.32	194200.61
Nov 2	Oct 26	212293.49	196293.64
Nov 3	Oct 27	214093.09	198837.87
Nov 4	Oct 28	217451.01	201460.48
Nov 5	Oct 29	218804.96	203640.03
Nov 6	Oct 30	221400.0	205689.35

Active subscribers

842+5.65%

797 previous period

Data for chart rui-chart-d2246e2e
Category	Comparison category	Active subscribers	Previous period
Oct 31	Oct 24	801.18	757.99
Nov 1	Oct 25	810.29	765.25
Nov 2	Oct 26	817.02	770.7
Nov 3	Oct 27	823.69	776.81
Nov 4	Oct 28	827.05	783.53
Nov 5	Oct 29	836.48	791.45
Nov 6	Oct 30	842.0	796.69

Oct 31Nov 6

Active subscribers

842+5.65%

797 previous period

Data for chart rui-chart-e2abe379
Category	Comparison category	Active subscribers	Previous period
Oct 31	Oct 24	801.18	757.99
Nov 1	Oct 25	810.29	765.25
Nov 2	Oct 26	817.02	770.7
Nov 3	Oct 27	823.69	776.81
Nov 4	Oct 28	827.05	783.53
Nov 5	Oct 29	836.48	791.45
Nov 6	Oct 30	842.0	796.69

New trials

59+15.69%

51 previous period

Data for chart rui-chart-4fcef2c8
Category	Comparison category	New trials	Previous period
Oct 31	Oct 24	6.97	7.71
Nov 1	Oct 25	8.95	8.59
Nov 2	Oct 26	8.25	5.8
Nov 3	Oct 27	7.59	6.64
Nov 4	Oct 28	8.58	9.16
Nov 5	Oct 29	9.79	6.68
Nov 6	Oct 30	9.0	6.85

Oct 31Nov 6

New trials

59+15.69%

51 previous period

Data for chart rui-chart-03487cf0
Category	Comparison category	New trials	Previous period
Oct 31	Oct 24	6.97	7.71
Nov 1	Oct 25	8.95	8.59
Nov 2	Oct 26	8.25	5.8
Nov 3	Oct 27	7.59	6.64
Nov 4	Oct 28	8.58	9.16
Nov 5	Oct 29	9.79	6.68
Nov 6	Oct 30	9.0	6.85

Gross volume

$22,953.00+7.3%

$21,392.00 previous period

Data for chart rui-chart-d7dc74bb
Category	Comparison category	Gross volume	Previous period
Oct 31	Oct 24	3088.08	2831.65
Nov 1	Oct 25	3167.1	2824.18
Nov 2	Oct 26	3149.68	3231.81
Nov 3	Oct 27	3242.32	2875.24
Nov 4	Oct 28	3591.93	3362.3
Nov 5	Oct 29	3233.97	2878.55
Nov 6	Oct 30	3480.0	3388.74

Oct 31Nov 6

Gross volume

$22,953.00+7.3%

$21,392.00 previous period

Data for chart rui-chart-df822507
Category	Comparison category	Gross volume	Previous period
Oct 31	Oct 24	3088.08	2831.65
Nov 1	Oct 25	3167.1	2824.18
Nov 2	Oct 26	3149.68	3231.81
Nov 3	Oct 27	3242.32	2875.24
Nov 4	Oct 28	3591.93	3362.3
Nov 5	Oct 29	3233.97	2878.55
Nov 6	Oct 30	3480.0	3388.74

Churn rate

2.4%-11.11%

2.7% previous period

Data for chart rui-chart-a6cbee7d
Category	Comparison category	Churn rate	Previous period
Oct 31	Oct 24	2.73	3.16
Nov 1	Oct 25	2.62	3.13
Nov 2	Oct 26	2.58	3.01
Nov 3	Oct 27	2.52	2.88
Nov 4	Oct 28	2.52	2.85
Nov 5	Oct 29	2.4	2.88
Nov 6	Oct 30	2.4	2.74

Oct 31Nov 6

Churn rate

2.4%-11.11%

2.7% previous period

Data for chart rui-chart-b42af066
Category	Comparison category	Churn rate	Previous period
Oct 31	Oct 24	2.73	3.16
Nov 1	Oct 25	2.62	3.13
Nov 2	Oct 26	2.58	3.01
Nov 3	Oct 27	2.52	2.88
Nov 4	Oct 28	2.52	2.85
Nov 5	Oct 29	2.4	2.88
Nov 6	Oct 30	2.4	2.74

app/controllers/dashboards_controller.rb

def show
  @filters = RailsuiCharts::Filters.new(params)

  current = revenue_for(@filters.range)
  previous = @filters.previous_range && revenue_for(@filters.previous_range)
  active_subscribers = Account.active.count
  previous_active_subscribers = Account.active.where(created_at: @filters.previous_range).count if @filters.previous_range
  new_trials = Account.trialing.where(created_at: @filters.range).count
  previous_new_trials = Account.trialing.where(created_at: @filters.previous_range).count if @filters.previous_range
  gross_volume = Order.paid.where(created_at: @filters.range).sum(:total)
  previous_gross_volume = Order.paid.where(created_at: @filters.previous_range).sum(:total) if @filters.previous_range
  churn_rate = Account.churn_rate(@filters.range)
  previous_churn_rate = Account.churn_rate(@filters.previous_range) if @filters.previous_range

  @metrics = [
    { label: "MRR", value: current.values.last, previous: previous&.values&.last,
      format: :currency, history: current, compare: previous&.values },
    { label: "ARR", value: current.values.last * 12, previous: previous&.values&.last&.*(12),
      format: :currency, history: current.transform_values { |value| value * 12 },
      compare: previous&.values&.map { |value| value * 12 } },
    { label: "Active subscribers", value: active_subscribers,
      previous: previous_active_subscribers, format: :number,
      history: current, compare: previous&.values },
    { label: "New trials", value: new_trials, previous: previous_new_trials,
      format: :number, history: current, compare: previous&.values },
    { label: "Gross volume", value: gross_volume, previous: previous_gross_volume,
      format: :currency, history: current, compare: previous&.values },
    { label: "Churn rate", value: churn_rate, previous: previous_churn_rate,
      format: :percentage, positive_is_good: false,
      history: current, compare: previous&.values }
  ]
end

private

# A grouped hash is already the shape the helper takes: label => value.
def revenue_for(range)
  Order.paid.where(created_at: range)
       .group("TO_CHAR(created_at, 'Mon DD')").sum(:total)
end

app/views/dashboards/show.html.erb

<%= railsui_chart_filters @filters, url: charts_pro_path, frame: "chart-dashboard" %>

<div class="grid grid-cols-1 md:grid-cols-2 xl:grid-cols-3 gap-4 md:gap-5">
  <% @metrics.each do |metric| %>
    <%= railsui_metric_card(**metric, expand: true) %>
  <% end %>
</div>

Pro

Every Pro helper, drawing live

Each card below is the shipped gem rendering on this page, from the data the code beside it produces. Nothing here is a screenshot or a mock-up.

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MRR movement

Pro

What moved between two monthly totals.

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Retention by cohort

Pro

Each month's signups, followed across the months after.

Cohort	Month 0	Month 1	Month 2	Month 3	Month 4	Month 5	Month 6	Month 7
Jan 2026	100%	82%	74%	69%	65%	62%	60%	58%
Feb 2026	100%	79%	71%	66%	63%	60%	58%
Mar 2026	100%	81%	73%	68%	64%	61%
Apr 2026	100%	74%	63%	57%	54%
May 2026	100%	71%	60%	55%
Jun 2026	100%	76%	66%
Jul 2026	100%	79%
Aug 2026	100%

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Service health

Pro

Ninety days of checks in the width of a card.

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Plans at a glance

Pro

Value, direction, and shape in one row each.

Solo	$18,450.00	+14.6%
Team	$12,380.00	+4.0%
Enterprise	$8,940.00	-6.9%
Legacy	$2,110.00	+0.5%

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Deploys and incidents

Pro

Spans on a time axis, lanes by service.

Data for chart rui-chart-8c704cc9
Category	Timeline
web	1786352400000, 1786353600000
api	1786354800000, 1786361400000
worker	1786366800000, 1786367700000
cdn	1786356000000, 1786365900000
5	1786350600000, 1786377600000

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Top customers by spend

Pro

The ranked row every overview ends with.

Amelia Allport	$12,840.00
Tara Vossenkemper	$9,910.00
Jamie Gammon	$6,480.00
Priya Raman	$4,120.00
Otto Lindqvist	$2,260.00

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Spend by category

Pro

Part-to-whole past what a pie can carry.

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OHLC with volume

Pro

Financial price movement, volume, and an overlay without custom Apex config.

Data for chart rui-chart-53f1f317
Category	Price	Volume	20-day avg
2026-08-12	118.0, 126.0, 115.0, 124.0	24000	121
2026-08-13	124.0, 129.0, 121.0, 122.0	31000	123
2026-08-14	122.0, 131.0, 120.0, 130.0	36000	126
2026-08-15	130.0, 136.0, 128.0, 134.0	42000	129
2026-08-16	134.0, 138.0, 129.0, 131.0	38000	131
2026-08-17	131.0, 141.0, 130.0, 139.0	45000	134

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Distribution by service

Pro

Five-number summaries from raw response-time samples.

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Usage heatmap

Pro

A nested hash becomes rows, columns, and shaded cells.

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Forecast range

Pro

Actuals, projection, and confidence band as one helper call.

Data for chart rui-chart-458fb28f
Category	Range	Actual	Forecast
Aug 1	18696.66, 19297.39	17200	18997.02
Aug 2	18927.59, 19777.15	17640	19352.37
Aug 3	19187.47, 20227.97	18020	19707.72
Aug 4	19462.33, 20663.8	18360	20063.07

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Signups, annotated

Pro

Deploys, incidents, and the target on one chart.

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Conversion funnel

Pro

Stages in order, with drop-off between each one.

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Gap-filled time series

Pro

Every day in the range, including the ones with no rows.

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Export

Pro

PNG and CSV, taken from the chart already on screen.

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Live updates

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New numbers arrive by Turbo Stream and the chart moves to them.

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Live

Updated just now

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Stop writing the reporting layer

Cohort math, MRR movement, funnel rates and forecasting, tested and maintained — alongside every app kit and component. One subscription, no per-project fees.

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Category	Change	Running total
Starting		14650.0
New	4200.0	18850.0
Reactivation	900.0	19750.0
Expansion	2100.0	21850.0
Contraction	-1200.0	20650.0
Churn	-2650.0	18000.0
Ending		18000.0

Category	Value
Payroll	48200
Hosting	12400
Contractors	9100
Tooling	6300
Marketing	5200
Travel	2800

Category	Response time
Web	86.0, 118.0, 141.0, 210.0, 310.0
API	94.0, 138.0, 168.0, 238.0, 420.0
Worker	180.0, 275.0, 360.0, 475.0, 760.0

Stage	Count	From previous	Of total
Visited pricing	12400	100.0%	100.0%
Started trial	4800	38.7%	38.7%
Activated	2600	54.2%	21.0%
Subscribed	980	37.7%	7.9%

Data for chart rui-chart-a6aec31d
Category	Mon	Tue	Wed	Thu	Fri
8 AM	18	24	21	28	26
12 PM	44	52	48	58	54
4 PM	38	41	46	49	35

Data for chart rui-chart-695e68f0
Category	Value
10:00	18
10:05	24
10:10	21
10:15	32
10:20	28
10:25	37
10:30	34
10:35	41