How Precise, Concise, and Friendly Copy Boosted Keep’s User Engagement

Introduction

Designers and product managers constantly refine visual elements, but the textual component—copy—often receives less attention despite its strong impact on user perception.

Why Copy Matters

Users are generally more educated in reading and writing than in visual design, so poor wording can directly degrade the product experience. A simple copy tweak on Android Pay’s launch button increased clicks by 12%.

Problems Faced

Keep’s rapid feature expansion resulted in inconsistent copy across teams, leading to vague, complex, or harsh wording. The same scenario could have up to six different prompt versions, confusing users and raising cognitive load.

Our Approach

The interaction team created a universal copy guide based on platform standards and Keep’s brand, focusing on three keywords: Accurate, Concise, Friendly.

Accurate

Ensuring precise terminology, correct units (e.g., km/s, kcal), and proper punctuation builds trust and eliminates ambiguity. Action buttons now describe the operation directly instead of using generic terms like “Confirm” or “Cancel”.

Concise

Short, clear copy reduces reading time. Redundant information is removed, and essential messages are delivered in brief sentences. Avoiding overly technical jargon and unnecessary repetition helps users grasp the core idea quickly.

Friendly

A supportive tone motivates users during workouts. Using “you” creates closeness, while avoiding commanding language reduces negative feelings. The copy stays user‑centered, emphasizing what users can achieve with the product.

Practical Application

In a training session exit dialog, the original verbose copy was replaced with a concise, encouraging message, reducing exit rates by 5% and helping more users complete their workouts.

Review

The copy guidelines have been applied to over 400 instances, delivering a noticeably smoother user experience and reinforcing a consistent brand voice across the app.

Conclusion

Effective copy is a foundational communication tool; by focusing on accuracy, brevity, and friendliness, Keep improves usability, strengthens brand personality, and encourages users to stay active.