Give the subtitle a distinct role.
Read the app name first and ask what remains unclear. Is the audience obvious? Is the main use case apparent? Does the visitor have a reason to care? The subtitle can address one of those gaps without trying to explain the entire product.
Start with the app-name decision. If the name already communicates the category, the subtitle may have room for a more specific benefit or use case.
Choose concrete language over category slogans.
For a fictional household planner, “Organise your life” is broad. “Plan meals for the week” identifies a task. The more specific wording is only appropriate if meal planning is central to the actual product and audience.
Specificity is not an excuse to overpromise. Avoid turning a secondary feature into the main proposition just because it makes a tidy phrase. The strategy should determine the priority.
Review the pair within Apple’s constraints.
Apple’s subtitle field allows up to 30 characters. Draft a few alternatives and compare them beside the app name rather than in isolation. Use Apple’s product page guidance for the current field requirements.
A character count only tests length. It cannot tell you whether the phrase is useful, accurate or natural in the target language. Check those qualities separately before approving the copy.
Connect the words to the first screenshots.
If the subtitle promises a weekly plan, the opening screenshot should make that experience believable. If it promises an easy start, show the starting experience rather than a complicated configuration view. The words and visual proof should support the same decision.
Use the screenshot strategy guide to identify the job of each frame. A strong sentence can still fail when the rest of the page argues for something else.
Evaluate revisions without inventing certainty.
Document the original, proposed subtitle, audience and reason for the change. Record publishing dates and other changes that may influence the result. Do not assume a before-and-after comparison isolates the contribution of one field.
Apple’s creative testing feature should not be confused with a universal test interface for every metadata field. The product page optimization guide explains the distinction. For copy prepared in context, explore iOS consulting.
