Find the keywords you can
actually rank for
Search volume, difficulty, and daily rank tracking for every keyword on the App Store and Google Play — real data from Apple and Google, not estimates.
TRUSTED BY INDIE DEVELOPERS
LAUNCH DEAL · FROM $12.42/MO $16.58 · LIMITED SPOTS
Watch
Sonar in 30 seconds
From keyword idea to top-10 ranking
Research
Pull keyword data directly from Apple Search Ads and Google Play autocomplete. Real search popularity — not estimated guesses. Each keyword gets a difficulty score (0–100) based on competitive analysis of the top 10 ranking apps.
Focus on terms where you actually have a chance.
Track
Add your app and Sonar tracks your position for every keyword daily. See which metadata changes move the needle, catch ranking drops before they cost you downloads.
Keyword gap analysis surfaces terms competitors rank for but you don’t.
Outrank
Monitor competitors to find gaps in their keyword strategy. Compare your rankings against any competitor to surface high-opportunity terms you can exploit.
Unlimited apps, both stores, full history — $12.42/month annual.
Revenue Estimates
NEWEstimated monthly revenue for any app on the store. Installs, retention, IAP pricing, and chart signals — the kind of data Sensor Tower charges thousands for.
Historical trends
Up to 12 months of rank history for every keyword. Spot seasonal patterns and see exactly when a metadata change paid off.
Your AI just became
an ASO expert
Connect Sonar to Claude, Cursor, or any MCP client and ask in plain English. Your AI pulls live keywords, rankings, reviews, and revenue estimates — then does the analysis for you.
- →Research by asking — “find keywords I can rank for”, “audit my listing”, “what changed for my competitor?”
- →Live data, not training data — 9 tools over both stores: keywords, rankings, reviews, revenue
- →It does the busywork too — on the Full plan your AI can set up apps, keywords, and competitors for you
2-minute setup · included on every plan
Which keywords can my habit tracker actually rank for in the US?
Three keywords stand out — real demand, beatable top 10:
“habit tracker” is dominated by Streaks and Habitica — skip it. Want me to add the other two to your rank tracking?
$19/month — a fraction of the price
Unlimited apps, keywords, and full history. Enterprise features without enterprise bloat.
Both stores, one dashboard
iOS App Store and Google Play side by side. No switching tools or stacking subscriptions.
API, CLI & MCP on every plan
REST endpoints, a native sonar CLI, and an MCP server that puts live App Store data inside Claude, Cursor, and Cline — with a copy-paste prompt library.
See real data before you pay
Three tools that work in your browser, no signup, with the same data engine that powers the paid product.
ASO Score Checker
Audit any app's metadata. Title, subtitle, keywords, screenshots — get a score and a fix list.
Try it
Keyword Generator
Drop in a seed term, get hundreds of keyword ideas with popularity scores. Both stores, every country.
Try it
Keyword Difficulty
Free difficulty scores for popular app keywords. Browse by category or search any term.
Browse keywords
What indie devs are saying
“Sonar has made keyword research super easy — it has been great for preparing my app for launch on the App Store. It has a great MCP integration so AI models can use real-world data to create good descriptions and headlines and analyse competitors. Being able to see real keyword difficulty and competitor terms in one place saved me hours of guesswork.”
Jan Sviland
Maker of Musklr →“What is incredible about Sonar is their team! For anything you need, you will get a quick resolution.”
Raul Rodrigues
Upbeat Studio →Simple, transparent pricing
One flat plan with everything included — plus pay-as-you-go credits for AI agents.
Launch deal · limited spots
$149/yr billed annually
7-day free trial · Cancel anytime · No charge until trial ends
Pay-as-you-go for AI agents & MCP. No dashboard.
50 free on signup · no card required
Frequently asked questions
[ ANSWER ]
Which app stores do you support?
Sonar supports both the iOS App Store and Google Play Store. You can track keywords, rankings, and competitors across both platforms from a single dashboard — no need for separate tools or subscriptions. Data sources include Apple Search Ads for iOS keyword popularity, the iTunes Search API for app metadata and search rankings, and Google Play autocomplete for Android keyword discovery. Both stores are treated as first-class citizens with full keyword research, difficulty scoring, and daily rank tracking.
Where does the keyword data come from?
Sonar combines multiple data sources to give you the most accurate picture possible. For iOS, we pull search popularity scores (5–100) from Apple Search Ads and supplement with autocomplete priority data from the App Store. For Google Play, we use autocomplete frequency data and cross-reference with Google Ads search volume as a proxy for keyword demand. You can optionally connect your own Apple Search Ads account (free to create) to unlock per-keyword popularity scores — the same data Apple uses internally. All difficulty scores are calculated using our proprietary algorithm that analyzes the top 10 ranking apps in real time.
How is the difficulty score calculated?
Our proprietary difficulty score (0–100) analyzes the top 10 ranking apps for each keyword across multiple competitive signals. We look at title match quality (exact, broad, partial, or none), the geometric mean of install counts and review volumes, average ratings, the number of top-100 apps using the keyword in their title or description, app age and update frequency, and whether the keyword is branded. A score of 0–30 means low competition (good opportunity), 30–60 is moderate, and 60–100 means highly competitive. The algorithm is based on open-source ASO research and extended with our own weighting model.
How often are rankings updated?
Rankings are tracked daily for all subscribers. Automated rank tracking jobs run between 2–5 AM UTC, searching each of your tracked keywords and recording your app's position in the results. Updated rankings are available in your dashboard by morning. You can also view historical rank trends over time to spot seasonal patterns, measure the impact of metadata changes, and catch ranking drops early. App metadata (ratings, reviews, install counts) is also synced daily to give you a complete picture of how your listing evolves.
Can I track competitor apps?
Yes — every subscription includes unlimited competitor tracking with no per-app fees. Add any competitor app from the App Store or Google Play and Sonar will monitor their keyword rankings alongside yours. You can compare rankings side-by-side, run keyword gap analysis to discover terms competitors rank for that you don't target yet, and track their metadata changes (new versions, description updates, category switches). Competitor intelligence is one of the fastest ways to find keyword opportunities: if a similar app ranks well for a keyword you're missing, that's a signal worth acting on.
Do you offer an API?
Yes. Sonar is built API-first — every data point in the dashboard is also available through our REST API. Full plan subscribers get 1,000 API requests per day across all endpoints, plus a command-line tool (CLI) for scripting and automation. For API-only users (AI agents, MCP tools, scripts), we offer prepaid credit packs from $10 — no subscription required. Each new account gets 50 free credits on signup. Stateless endpoints cost 1 credit per call (app lookup, search, ASO score, suggestions, reviews, keyword extraction), keyword research costs 10 credits, and bulk revenue calls cost 1 credit per app ID. Credits never expire and you can opt in to auto-recharge when your balance gets low. API keys use Bearer token authentication with the aso_ prefix. Full documentation with request/response examples is at trysonar.app/docs/api.
What happens after my free trial?
After the 7-day trial, your subscription begins automatically — no action needed. Your data — tracked apps, keywords, ranking history, and competitor groups — is fully preserved. You can cancel anytime during or after the trial from your settings page. The Full plan is $19/month (or $12.42/month billed annually). The launch deal (50% off for life) is sold out.
Your keywords are waiting
Add your app, see where you rank, and find the keywords your competitors missed. Takes about two minutes.
7-day free trial · Cancel anytime