Guides, tools and ideas for keeping customers.
Everything we publish is practical, plain-English and free — no gated eBooks, no fake statistics, no case studies that never happened.

From the blog
How to Reduce Customer Churn: A Practical Playbook
Spot the leading indicators, tier your book by risk and act before the cancel button gets clicked.
Read articleCustomer Feedback Questions That Actually Work
Why most surveys fail, the question patterns that produce actionable answers, and a bank you can steal.
Read articleWhat Is a Customer Health Score and How Do You Calculate It?
The ingredients, the weighting, a worked example, and the five pitfalls that quietly break health scores.
Read articleGuides
Customer Feedback
What it is, why collection without action fails, and the loop that turns answers into revenue.
Read the guideCustomer Sentiment
Sentiment vs. satisfaction, how analysis works, and where it quietly goes wrong.
Read the guideCustomer Health Score
The composite 0–100 metric that predicts retention — ingredients, weights and worked examples.
Read the guideChurn Prediction
Which signals predict cancellation months early, and how to act on them at scale.
Read the guideCustomer Intelligence
Turning scattered feedback, reviews and conversations into one actionable view of your book.
Read the guideAI Customer Feedback Analysis
What AI analysis can and can’t do, how to keep it honest, and what to build first.
Read the guideFree calculators
Real, deterministic math that runs in your browser — nothing is uploaded, stored or sent anywhere.
NPS Calculator
Detractors, passives and promoters → your Net Promoter Score.
Open calculatorCSAT Calculator
Positive responses ÷ total responses → your satisfaction score.
Open calculatorChurn Calculator
Monthly and annualised churn from customers lost over a period.
Open calculatorCLV Calculator
Average order value, frequency and lifetime → customer lifetime value.
Open calculatorHealth Score Calculator
Weight six 0–100 signals into one customer health score.
Open calculatorSample Size Calculator
How many responses you need for a statistically useful survey.
Open calculatorStop reading about retention. Start seeing yours.
ClientTell reads your own customer feedback and tells you what to fix first — free to start.