Write a headline with one purpose
Choose the task or benefit demonstrated by the screen and express it in a short sentence or phrase. Remove words that do not add meaning. “Organize your next trip” explains more than a vague string of superlatives, provided the app actually supports that task. Avoid forcing several claims into the same headline with punctuation and tiny secondary lines. If the sentence needs a long explanation, consider whether the screenshot is trying to do the work of two panels. The app image should supply evidence for the words.
Set a clear hierarchy
Give the headline a clear visual role, supporting text a quieter role, and the interface its own readable area. More type sizes do not automatically create more hierarchy. Two deliberate levels are often enough for a short caption system. Keep repeated panel headlines at compatible sizes and weights. When one message is longer, edit it before dramatically shrinking it. A set with one tiny headline among several large ones can look unfinished and makes the sequence harder to scan.
Choose weight and spacing for the rendered result
Very thin type may look elegant on a large editor canvas and disappear in a small store preview. A heavier weight can help, but avoid making every text element equally bold. Inspect letter spacing and line height at the final viewing scale. Tight lines can merge into a dense block; overly loose lines can separate words that belong together. Do not assume a font’s name or popularity tells you whether it works in this composition. The useful test is the actual text over the actual background.
Make line breaks part of the composition
Break a headline at a natural phrase boundary when the layout allows it. Avoid leaving a short orphan word on its own line simply because the text box is slightly too narrow. Check that the line break does not change the meaning or separate an app name awkwardly. When editing a template, the original sample wording may have been much shorter than your real message. Adjust the text box and surrounding spacing rather than treating the sample’s exact positions as fixed rules.
Protect contrast across the whole text area
Text over a gradient can be clear on one side and weak on the other. Check the full background behind each line, including where it crosses a bright shape or image detail. A small shadow is not a reliable substitute for enough contrast. Move the text to a quieter area, adjust the background, or use a simpler color pairing when necessary. Distinguish supporting text from the headline through size and spacing as well as color, because a pale subtitle may become unreadable when the image is reduced.
Plan for language changes
Translation changes length, rhythm, glyph shapes, and sometimes reading direction. Allow room for expansion and inspect each localized export instead of shrinking all translations to fit the shortest original. Use a font that supports the required characters, and review mixed-script phrases, punctuation, and numbers. Right-to-left language needs a deliberate check of alignment and visual order. Machine-like shortening can make a caption less natural; ask a fluent reviewer whether the edited wording still expresses the actual app task.
Judge the downloaded image, not just the text box
Export a representative panel and open it outside the editor. Inspect type at full size for rendering problems, then reduce the view to test whether the intended hierarchy survives. Compare thin letters, punctuation, and line breaks with the preview. Review the complete set for consistent alignment and accurate claims, and replace all fictional template captions. Store specifications govern the submitted asset’s dimensions and format; this typography method is practical editorial guidance rather than a promise of acceptance or improved downloads.
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