AI metadata generator for App Store and Play Store listing fields — title, subtitle, description, and keywords

How to Generate High-Converting App Metadata with AI

By Sagar Joshi

Published

Your App Store metadata and Play Store metadata decide two things before a user ever sees your screenshots: whether you appear in search, and whether the snippet they read earns the tap. Most teams treat metadata as a launch checkbox — write something once, ship, and hope. In 2026, that leaves installs on the table.

An AI metadata generator does not replace strategy. It compresses execution: draft titles, subtitles, descriptions, and keyword strings in minutes instead of hours, with store limits enforced from the first character. This guide shows how to generate high-converting app metadata with AI — what to feed the model, how Apple and Google index each field differently, and how Nakxi Metadata AI turns competitor context into listing copy you can apply with one click.

For the full workflow from research to publish, see how to build an entire App Store listing with AI in under 30 minutes.

Why metadata still beats screenshots for discovery

Screenshots win the product page. Metadata wins search.

According to Apple Search Ads, search drives roughly 65% of iOS app discoveries. On Google Play, store search and browse remain the dominant organic channels for most categories. Your app title generator output and subtitle copy appear directly in search results — often before any visual asset loads.

That dual job — indexing plus conversion — is why generic AI fluff fails. A description that reads well to a language model but wastes your 30-character subtitle on filler terms won’t rank or convert. High-converting metadata matches search intent in indexed fields and purchase intent in visible copy.

If you want the indexing mechanics in depth, read our App Title & Subtitle ASO Guide. This post focuses on generating that copy fast without breaking store rules.

Character limits: the hard constraints every AI output must respect

Before you generate anything, internalize the limits. Exceeding them blocks submission or truncates copy in search.

FieldApple App StoreGoogle Play
Title / app name30 characters30 characters
Subtitle / short description30 characters80 characters
Hidden / extended keywords100-character keyword fieldWoven into full description
Promotional copy170-character promotional text (not indexed)—
Full description4,000 characters4,000 characters

Official references: Apple product page metadata and Google Play listing best practices.

Practical rule: Put your highest-intent terms in the title first, then subtitle or short description. Never repeat the same word across Apple fields — Apple combines unique words into phrases, so duplication wastes characters without adding indexing strength.

Nakxi Metadata AI shows live character counts against these limits for every field before you apply. That alone saves hours of App Store Connect back-and-forth.

What to feed an AI metadata generator (inputs that matter)

Garbage in, generic out. The best app description generator results come from structured context:

1. Core value proposition (one sentence)

What problem do you solve, for whom, with what outcome?

Example: “Aura helps freelancers track expenses and export tax-ready reports in under 60 seconds.”

2. Top three features (benefit-framed)

Not “dark mode” — “Review spending at night without eye strain.”

3. Category and competitors

Name 2–3 rival apps. AI can mirror category conventions or deliberately differentiate.

4. Target keywords (seed list)

5–10 terms you believe users search — even if unvalidated. Nakxi Growth validates these against competitor keyword gaps.

5. Tone and goal

Launch vs. growth vs. re-engagement. Professional vs. playful. Nakxi offers generation modes: balanced, creative, and conservative.

6. Store target

Apple and Google index differently. Generate separate variants — do not copy-paste iOS metadata into Play Console.

Field-by-field: how to generate each metadata piece

App title (app name generator logic)

The title is your strongest indexed field on iOS and anchors semantic relevance on Android.

Apple (30 characters max):

WeakStrong
Best Finance App Ever!!!Aura: Expense Tracker
Super Budget Manager ProSpendly — Budget & Bills

Google Play (30 characters max): Keep brand + one key term: Spendly: Budget Tracker

AI prompt pattern (if not using Nakxi):

Write 5 App Store titles under 30 characters for [app], category [X], primary keyword [Y]. Include brand name. No emojis. No superlatives.

With Metadata AI, open any listing project, click the ✨ AI button next to the title field, or run Generate full listing to draft all fields at once.

Subtitle and short description

Visible in search on both stores. Must clarify the title, not repeat it.

Apple subtitle examples (30 characters):

  • Scan Receipts, Export CSV
  • Workout Log & Meal Planner
  • Offline Flashcards & Quiz

Google short description (80 characters): Front-load keywords naturally: Track expenses, scan receipts, and export tax reports — built for freelancers.

Full description (app description generator)

Structure for scannability and conversion:

  1. Hook (first 2–3 lines visible before “Read More”) — outcome + audience
  2. Social proof or credibility — numbers, awards, press (if true)
  3. Feature bullets — benefit-first, 4–6 items
  4. Use cases — who it’s for
  5. Close — CTA to install

Template:

[Outcome headline — who it's for]

[One sentence proof or differentiator]

• [Benefit]: [Feature detail]
• [Benefit]: [Feature detail]
• [Benefit]: [Feature detail]

Perfect for [persona 1], [persona 2], and [persona 3].

Download [App Name] and [specific next step after install].

Metadata AI generates this structure automatically, with bullets and opening lines tuned to your selected goal — drive downloads, highlight features, build trust, or app launch.

Keyword field (iOS only)

100 characters, comma-separated, no spaces after commas, no repetition of title/subtitle words, no competitor brand names.

Example for a habit tracker:

habits,routine,planner,streak,goals,daily,tracker,atomic,morning,checklist

Nakxi’s Generate Keywords action produces ASO-optimized strings that incorporate rival keyword gaps when competitor data is available.

Promotional text (Apple, not indexed)

Use for timely offers: launch discounts, seasonal campaigns, feature announcements. Regenerate freely — it does not affect rankings.

Competitor-aware metadata: why context beats blank-slate AI

ChatGPT does not know what your category’s top apps rank for. Nakxi does.

On Growth plans, Metadata AI reads Competitor Insights data:

  • Missing terms rivals use in titles and subtitles
  • Competitiveness score summarizing your metadata vs. category leaders
  • Differentiation mode — match conventions or stand apart deliberately

Workflow:

  1. Run a competitor report on your store URL
  2. Review keyword chips and gap list
  3. Open Metadata AI with competitor-aware generation enabled
  4. Compare balanced vs. conservative outputs
  5. Apply field-by-field or push the full listing

This is how an AI metadata generator becomes an ASO tool — not a writing toy.

Step-by-step: generate your listing with Nakxi Metadata AI

Time: ~10 minutes

  1. Create a listing project in Nakxi — App Store, Play Store, or both
  2. Add app context — name, category, short feature summary
  3. Optional: Run Competitor Insights (Growth) or paste 2–3 rival URLs manually
  4. Click Generate full listing or use ✨ AI per field
  5. Select mode — balanced / creative / conservative; pick goal and tone
  6. Review character counts — edit any field that feels off-brand
  7. Generate Keywords for the iOS keyword field in one click
  8. Apply to project — metadata saves to your listing workspace alongside screenshots

Free accounts receive 5 one-time AI credits to test Metadata AI. Creator ($19/mo) includes 300 AI credits per month.

Quality checklist before you publish

Run every AI draft through this filter:

  • Title ≤ 30 chars (iOS and Android)
  • Subtitle clarifies title without repeating words
  • First description paragraph works standalone (most users never expand)
  • No competitor trademarks in keywords or title
  • No keyword stuffing — reads naturally aloud
  • Metadata aligns with screenshot messaging
  • One major metadata change at a time if updating a live app (measure 14–30 days)

Common mistakes when using AI for app metadata

1. Publishing the first draft — AI gives options, not final copy. Always edit.

2. Same metadata on iOS and Android — Different limits, different indexing models.

3. Ignoring combinatorial indexing — Repeating “budget” in title, subtitle, and keywords wastes space on Apple.

4. Superlatives and hype — “Best,” “#1,” and “ultimate” rarely help search and can trigger review scrutiny.

5. Metadata-visual mismatch — Promising “AI coach” in the title while screenshots show a settings screen kills conversion. Align with your screenshot studio output.

Frequently Asked Questions

What is an AI metadata generator for app stores?

An AI metadata generator produces store-ready titles, subtitles, short descriptions, full descriptions, promotional text, and keyword fields from your app context — respecting Apple and Google character limits and ASO best practices. Nakxi Metadata AI generates all fields in one pass and shows live character counts before you apply.

What are the App Store metadata character limits?

On the Apple App Store: app name 30 characters, subtitle 30 characters, keyword field 100 characters, promotional text 170 characters, and full description 4,000 characters. On Google Play: title 30 characters, short description 80 characters, and full description 4,000 characters. Exceeding any limit blocks submission or truncates copy in search results.

Should I use AI for my app title or write it manually?

Use AI to draft options quickly, then edit for brand voice and legal constraints. Titles carry the highest indexing weight on both stores — never publish without a human review. Nakxi Metadata AI offers balanced, creative, and conservative generation modes so you can compare approaches before committing.

Does Metadata AI avoid repeating keywords across fields?

Yes. Nakxi’s keyword generator excludes terms already in your title and subtitle, filters competitor brand names, and packs high-value terms within Apple’s 100-character keyword field limit — following combinatorial indexing rules where unique words combine into searchable phrases.

Can AI metadata use competitor research data?

On Nakxi Growth, Metadata AI pulls from Competitor Insights — surfacing keyword gaps rivals rank for and differentiating your title and description from category leaders. Free accounts can still generate full listings; Growth adds competitor-aware generation.

Key takeaway: An AI metadata generator accelerates drafting; your job is to validate intent, enforce brand voice, and keep metadata synchronized with visuals as you iterate.

What to do next

Metadata is the text layer of your install funnel. Generate it fast, measure it seriously, and keep it aligned with screenshots and localization as you scale.

Related guides:

Generate your App Store metadata with AI

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SJ

Written by Sagar Joshi

Sagar Joshi is a co-founder of Nakxi and helps ship ASO-ready screenshot workflows for indie developers on iOS and Android.