Lab
Things I've been building
Most projects here began with a recurring problem: a journey that was hard to map, a test that was easy to misread or a report whose numbers did not quite agree. I built the tool I wanted to use, then kept it open for others to inspect and adapt.
| Class | Rule |
|---|---|
| Direct | Same counting unit, denominator, attribution window/model, date basis. |
| Normalizable | A pure unit or scale conversion. Nothing else differs. |
| Conditional | Both valid, answering different questions. State each, never rank them. |
| Not comparable | The definitions themselves differ. Refuse, and name the mechanism. |
Asked: rank Meta and LinkedIn by ROAS.
Fix: Re-pull both at 7-day click / 1-day view, or settle it with a geo holdout. Attributed ROAS won't answer this at any window.
| Campaign | Account | Category | Change | Date |
|---|---|---|---|---|
Campaign Alpha | Account A | Budget | 150,000200,000 | Aug 1, 2026 · 9:12 AM |
Campaign Alpha Ad Group 1 | Account A | Bidding | 3.504.20 | Aug 1, 2026 · 9:15 AM |
Campaign Beta | Account A | Budget | 80,000100,000 | Aug 3, 2026 · 2:22 PM |
Campaign Alpha | Account A | Status | EnabledPaused | Aug 4, 2026 · 8:40 AM |
Campaign Gamma | Account B | Budget | 50,00045,000 | Aug 6, 2026 · 10:00 AM |
Campaign Alpha | Account B | Status | EnabledPaused | Aug 17, 2026 · 9:45 AM |
Home / Health & Fitness / Daily Calorie Calculator
Daily Calorie Calculator
BMR = 10 × weight + 6.25 × height − 5 × age + 5 (male) or −161 (female)
Gender
Your info
Age
30Height (cm)
180Weight (kg)
80Activity
SedentaryYour goal
Daily calorie need (×1.20)
2,136 kcal/day
Journey Builder
Journey Builder
Data quality checked before generation
Reads the events and parameters already available, shows which journey patterns the data can support, then builds the trigger, decisions, waits, channel steps and exits.
Signals in
- add_to_cart
- trial_start
- segment: lapsed
Channels out
- Push
- SMS
- In-app
Where journeys end
- purchase · 7-day windowAbandoned cart
- subscription_startTrial conversion
- purchase or session_startWinback
Journey Library
Journey Library
Branching flows · channel-aware
A practical reference library for lifecycle and CRM work. Each journey shows the trigger, waits, decisions, channel sequence, handoffs and stop conditions in one place.
A/B Test Playbook
A/B Test Playbook
211 scenarios
A structured experiment library. Each scenario keeps the hypothesis, the one variable that changes, the decision metric, guardrails and setup risks together.
Cart & Checkout1 of 211 scenarios
Does a visible coupon-code field increase cart abandonment?
AControl · field visible
BTreatment · behind a link
Have a coupon code?
Exports in
Comparability check
The definitions themselves differ. Refuse, and name the mechanism.
Dashboard out
Dashboard Builder
Dashboard Builder
11 dashboard templates
Reviews reports from different platforms, sorts which metrics can be compared safely and leaves out combinations that would mislead a dashboard.
Google Ads Change History
Google Ads Change History
No dependencies · Built-in self-test
Turns an exported Google Ads change history into a searchable offline dashboard. Filter by account, campaign, date or category, then inspect the old and new values together.
- Campaign AlphaBidding3.504.203.504.20Aug 1, 2026 · 9:15 AM
- Campaign BetaBudget80,000100,00080,000100,000Aug 3, 2026 · 2:22 PM
- Campaign AlphaStatusEnabledPausedEnabledPausedAug 4, 2026 · 8:40 AM
- Campaign GammaBudget50,00045,00050,00045,000Aug 6, 2026 · 10:00 AM
- Campaign AlphaStatusEnabledPausedEnabledPausedAug 17, 2026 · 9:45 AM
Numerspace
Numerspace
Free to use · Turkish and English
A bilingual library of practical calculators for marketing, money, health, work and everyday questions. No account, email gate or download required.
If this work overlaps with yours, let's talk.
Send me a note about growth, CRM, measurement or one of the projects here. A question, a counterpoint or a simple hello all work.