Generate 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.
Imagen 4 has no style-reference image input — its consistency comes from prompt fidelity. Save the screenshot block in a Text node: "Photorealistic mobile photography, iPhone 15 Pro device in natural light, sharp focus on the device screen, soft bokeh background, warm peach and white #FFFFFF UI palette." Wire it into every Imagen 4 node; each concatenates the block with its feature-specific subject prompt.
Imagen 4 reads hex codes literally. Pin three to five UI colors in the saved block: "warm peach #FFB89A primary, white #FFFFFF UI background, charcoal #2C2C2C text, mint accent #B5F1D8." The hex pins hold UI palette across 50+ screenshots from the same block. Color names alone drift across runs ("peach" maps to different shades).
For each screenshot, write the subject prompt as a single composed scene: "iPhone 15 Pro held in hand against a soft blurred outdoor background, screen displaying a fitness app dashboard with route map prominent in the upper half and pace chart in the lower half, sharp focus on the screen, soft bokeh on the background, App Store 1290x2796 portrait." Imagen 4 composes the device + UI + environment in one pass.
Imagen 4 ships in Fast, base, and Ultra tiers. Pin Ultra on the first screenshot in the gallery (the hero) and on any device-detail close-ups — Ultra's prompt adherence is meaningfully tighter on detailed UI rendering. Pin base on subsequent feature screenshots. Fast is for first-pass exploration only.
Imagen 4 can render short text but Ideogram wins on App Store production legibility. The cleanest pipeline: Imagen 4 generates the device + UI + environment scene with explicit "no in-image headline text," then a downstream Ideogram V3 node takes the Imagen 4 output and adds the headline + CTA in legible bold typography. Photographic realism + production typography = App Store-ready.
Apple requires 1290x2796 (iPhone 6.7"), 2064x2752 (iPad 13"); Google Play accepts 1080x1920. Pin target dimensions on each Imagen 4 node before generation. Re-cropping later breaks the device-frame composition and misaligns the downstream Ideogram headline placement. Generate at the App Store dimensions directly.
Hero screenshot for iPhone 6.7". Photographic realism + dimensional pin + no-text instruction = clean Imagen 4 output ready for downstream Ideogram overlay.
[Photographic block prefix with hex colors] + iPhone 15 Pro held in hand against a soft blurred coastal sunset background, screen displaying a clean fitness app dashboard with route map prominent in the upper half and pace chart in the lower half, sharp focus on the device screen, soft golden hour bokeh on the background, photorealistic, App Store 1290x2796 portrait, no in-image headline text.
iPad screenshot at the required dimensions with photographic environment. The "wooden desk" + "coffee cup" + "soft natural light" gives Imagen 4 specific scene anchors.
[Block prefix] + iPad 13" Pro on a wooden desk beside a coffee cup, screen displaying the app dashboard with multiple workout cards visible in a grid layout, soft natural light from a window on camera left, photorealistic, 2064x2752 portrait, no in-image text.
Apple Watch screenshot for fitness app. Imagen 4 renders the wrist-and-watch composition with photographic detail.
[Block prefix] + Apple Watch Series 9 on a runner's wrist mid-stride, screen displaying a heart-rate and pace metric in real-time, motion blur in the background suggesting movement, sharp focus on the watch face, photorealistic, 1290x2796 portrait, no in-image text.
Comparison shot for two-feature highlight. Imagen 4 handles dual-device composition with prompt-literal placement.
[Block prefix] + Two iPhones 15 Pro side by side on a clean white surface, the left screen showing the workout summary, the right screen showing the social leaderboard, soft top-down studio lighting, photorealistic, 1290x2796 portrait, no in-image text.
Build a saved photographic block with hex-coded UI colors. Hex pins hold UI palette across 50+ screenshots; color names drift across runs.
Pin Ultra tier for hero screenshots and device-detail close-ups, base for subsequent feature screenshots, Fast only for first-pass exploration.
Always include "no in-image headline text" in the Imagen 4 prompt — it keeps the photographic layer clean for downstream Ideogram overlay.
Match App Store dimensions on the canvas (1290x2796 iPhone 6.7", 2064x2752 iPad 13", 1080x1920 Android). Re-cropping breaks composition.
Use literal compositional language ("route map prominent in the upper half," "pace chart in the lower half"). Imagen 4 follows literal positions.
For lifestyle context shots (phone in hand outdoors, watch on wrist running), name the action and environment explicitly. Generic "person using the app" returns generic person.
Imagen 4 returns 1024-2048+ outputs at the requested aspect with strong photographic realism and prompt adherence holding ~92% across 50+ screenshots from the same block. Generation time: Fast 8-15s, base 15-30s, Ultra 30-60s. Best at photorealistic device-in-context shots; pair with Ideogram for App Store-grade headline typography. Output drops onto the canvas; chain through Ideogram for the typography pass, then export and upload to App Store Connect / Play Console.
Connect Imagen 4 with other AI models on Martini's infinite canvas. No GPU required — start free.
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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.
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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.
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