Ideogram
Ship pixel-perfect App Store and Google Play screenshots on Martini using Ideogram V3 — the only AI image model that renders headline copy, feature callouts, and CTA buttons legibly inside the frame. Mobile founders and product marketers ship 5-8 screenshots per locale at the required iPhone 6.7", iPad 13", and Android dimensions, with localized headlines that have to read cleanly in-image. Ideogram V3 is the production tool for this — no Sketch round-trip, no Figma headline overlays, the typography ships baked into the image.
Apple requires 1290x2796 (iPhone 6.7"), 2064x2752 (iPad 13"), and Google Play accepts 1080x1920 portrait. Pin the target dimensions on each Ideogram V3 node before any generation. Match aspect ratio at the canvas, not in post-crop — Ideogram composes the typography per ratio, and re-cropping later misaligns the headline placement.
Ideogram V3 renders quoted text near-letter-for-letter. Write: app store screenshot with the headline "TRACK YOUR TRAINING, EVERY DAY" in bold sans-serif on the upper third. Quotes are load-bearing — Ideogram treats the string as literal typography. For feature callouts, use the same pattern: "Real-time pace tracking" in smaller body weight. For the CTA, "Try Free for 14 Days" in a contained button shape.
For app store screenshots that need a device frame (a phone in hand, a tablet on a desk), describe it explicitly: "iPhone 15 Pro held in hand against a soft blurred outdoor background, screen displaying the app UI with [describe the visible UI elements], headline overlay above the device." Ideogram composes the device + UI + typography in one pass. For UI-only screenshots without device frame, describe the screen as if it were a flat image.
Apple recommends 5-8 screenshots per locale. Duplicate the Ideogram V3 node 8 times — one per feature highlight (training tracker, route maps, social sharing, premium tier, etc.). Each shares the device frame style and brand prefix; only the quoted headline and visible UI elements change. Duplicate the entire 8-screenshot set per locale (en, es, ja, zh-CN) — only the quoted headline strings change between locales.
For multilingual app stores, duplicate the canvas per locale and swap the quoted headline: "TRACK YOUR TRAINING" → "RASTREA TU ENTRENAMIENTO" → "トレーニングを記録" → "追踪你的训练". Ideogram V3 handles non-Latin scripts cleanly including Chinese, Japanese, Spanish, French, German, Korean. The visual stays identical; only the typography swaps. Cheapest path to localized screenshots — far cheaper than per-locale Figma exports.
Apple has hard typography rules: headlines under 6 words, no claims that violate App Store Review Guidelines, legible at thumbnail size. After generation, view each screenshot at 50% scale (App Store gallery thumbnail size) and check headline legibility. If text is cramped or thin at thumbnail size, re-run with bolder/larger weight in the prompt. Catching legibility at QA beats catching it at App Store rejection.
Hero screenshot for iPhone 6.7". The quoted headline + quoted CTA + device frame composed in one Ideogram pass.
iPhone 15 Pro held in hand against a soft blurred outdoor background, screen displaying a clean fitness app UI with a colorful pace chart and route map, the headline "TRACK YOUR TRAINING, EVERY DAY" in bold oversized sans-serif on the upper third, white text on subtle dark gradient overlay, CTA "Try Free for 14 Days" in a rounded button at the lower third, App Store 1290x2796 portrait
Feature highlight screenshot. Same device frame and brand language; only the visible UI and quoted headline change.
Same iPhone scene, screen showing the social sharing feature with a leaderboard UI, the headline "SHARE YOUR PROGRESS" in bold sans-serif, body callout "See friends' workouts" in lighter weight, App Store 1290x2796
iPad screenshot at the required dimensions. Same brand voice; aspect ratio adjusted for tablet.
iPad 13" Pro on a wooden desk, screen displaying the app dashboard with multiple workout cards visible, the headline "BUILT FOR EVERY SCREEN" in bold sans-serif on the upper portion, soft natural light from camera left, 2064x2752 portrait
Spanish localization. Only the quoted strings change; visual identical to English version.
Same iPhone scene with localized Spanish headline "RASTREA TU ENTRENAMIENTO, CADA DÍA" in bold oversized sans-serif, CTA "Prueba gratis 14 días", App Store 1290x2796
Quote every piece of in-image text — headlines, callouts, CTAs. Unquoted text gets paraphrased; quoted text gets rendered near-letter-for-letter.
Match the App Store / Play Store dimensions on the canvas, not in post-crop. Re-cropping breaks Ideogram's typography placement.
Use the style_type parameter "DESIGN" for app store screenshots — it biases toward the clean graphic look App Stores expect.
Specify font weight, size, and placement explicitly ("bold oversized sans-serif on upper third"). Vague directives produce inconsistent typography.
For non-Latin scripts (Japanese, Chinese, Korean), test 2-3 generations per headline — Ideogram's text rendering is strong but not deterministic, especially for CJK characters.
For the CTA button, describe the button shape explicitly ("rounded rectangle button at lower third"). Without it, Ideogram may render the CTA as floating text without a button container.
Ideogram V3 returns App Store and Play Store screenshots at the requested dimensions with rendered in-image text holding ~95% legibility on quoted English strings, ~85-90% on CJK and other non-Latin scripts. Generation time 20-40s per output. The text-rendering capability is what no other Martini image model matches — for app store work where the headline IS the asset, Ideogram is the production tool. Output drops onto the canvas; export the locked screenshot set per locale and upload to App Store Connect / Play Console without further post-production.
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Generate App Store and Google Play screenshots on Martini using GPT Image 2 — a strong narrative composition pick for screenshots that need to tell a feature story across the gallery, with reasonable in-image text rendering for short headlines. GPT Image 2 sits between Ideogram (typography champion) and FLUX.2 (literal product staging): it understands feature narratives better than either, which makes it useful for screenshots that frame a feature as a moment ("when your run finally clicks"). For pixel-perfect headlines, chain to Ideogram; for the device frame and feature staging, GPT Image 2 is solid.
View guideGenerate App Store and Google Play screenshots on Martini using Imagen 4 — strong photographic realism and prompt adherence make it the right pick for screenshots that need to look like real product photography rather than illustrated mockups. Imagen 4 renders specific device frames, lighting setups, and environment compositions with near-literal accuracy. For app marketers who need photo-realistic device-in-context screenshots (a phone in hand, a tablet on a desk, a watch on a wrist), Imagen 4 is the cleaner pick than illustrated alternatives. Pair it with a downstream Ideogram node for the headline typography pass.
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