About aso.best

aso.best is an app store optimization tool for the App Store and Google Play that runs keyword research on the stores' own numbers rather than modelled search volumes. It shows every phrase a competitor ranks for, including phrases that can only come from its hidden keyword field, tracks positions every morning, edits listings in every language and drafts review replies. It is built by a single developer in Ljubljana for app makers and agencies.

A competitor read takes around two minutes: aso.best runs live store searches and Apple Ads keyword calls, then reports each phrase's Apple popularity score on a 0-100 scale, first-page difficulty, position and whether it sits in the hidden field. An AI assistant runs these tools from a chat request, shows every step it took and answers with a table, while the model itself never estimates a number; every figure comes from Apple.

Beyond competitor reads, aso.best offers niche analysis, a competitor finder, top charts, an algorithm-change monitor and a visibility score. Alerts for keyword drops, 1-star reviews and download swings go to email, Slack, Discord, Microsoft Teams, Telegram or a webhook. The chat translates titles and subtitles within character limits and saves them to App Store Connect and Google Play, and the same 34 tools are available over an MCP server to ChatGPT, Claude, Cursor and Codex, plus a REST API.

aso.best has a free tier with 3 competitor reads a month, 5 tracked keywords and 40 chat credits. Track costs €6.99 a month for 100 keywords, Pro costs €9 a month at a launch price with 1,000 keywords and AI review replies, and Studio costs €29 a month for agencies with 1,500 keywords and team seats. Prices are in EUR plus VAT, a year costs the price of ten months, and coverage spans 124 storefronts and 15 listing languages.

Use cases

Finding the phrases a competitor hides in its App Store keyword field
Getting a morning alert when a keyword drops, a 1-star review arrives or downloads swing
Localizing an app's subtitle for many storefronts at once
Answering App Store and Google Play reviews with AI drafts
Sending weekly keyword and ratings reports to agency clients
Checking whether the store algorithm moved on a given day

Key features

Competitor reads showing every ranked phrase, popularity, difficulty and hidden keyword-field phrases
Daily position, rating and review tracking with morning alerts
Title and subtitle translation from the chat, saved to both stores
AI-drafted review replies in the reviewer's language
AI assistant that runs the research tools and answers with a table
MCP server and REST API exposing 34 tools
Popularity scores taken from Apple Ads rather than modelled
Niche analysis with an open, contested or locked verdict
Visibility score with suggested fixes
Agency workspace with client PDFs, team seats and branding

Pros and cons

Pros

Every number comes from Apple, with no modelled estimates

Competitors can be read without connecting an app or installing anything

Free tier needs no credit card

Soft limits: going over the keyword cap deletes nothing

Yearly billing costs ten months; cancel any time

Cons

Free plan is limited to 3 competitor reads and 5 tracked keywords a month

Non-Latin scripts such as Japanese find fewer keyword candidates

Google Play apps are not yet in daily tracking

MCP tools only answer on paid plans

Store lookups by an assistant or the API are rate-limited per plan

Pricing

Free

€0

3 competitor reads a month
5 tracked keywords
40 chat credits
No card

Track

€6.99/mo

month

€69/yr yearly
100 keywords
20 apps
All history
Morning alerts
MCP server and REST API

Pro

€9/mo

month

€90/yr yearly
1,000 keywords
100 competitor reads
50 apps
Listing edits in every language
AI review replies
Client PDFs and share links

Studio

€29/mo

month

€290/yr yearly
1,500 keywords
500 competitor reads
500 apps
Team seats and client tags
3 API tokens

Reviews

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Frequently asked questions

Does aso.best need access to my own app?

No. Any public App Store app can be read, with nothing to install and no App Store Connect access or API key required.

Where does the popularity score come from?

From the Apple Ads keyword suggestions endpoint, the same 0-100 score Apple shows advertisers; it is store-wide, while difficulty and position are per country.

Which stores and languages are supported?

124 storefronts and 15 listing languages, on every plan.

What about Google Play?

Play keyword positions and first-page difficulty are in the free tools; Play apps join daily tracking next. No Play search volume is shown because Google publishes none.

Can I switch plans later?

Yes. Plans can be changed up or down from the billing page at any time, and Stripe prorates the difference.

Is the MCP connection safe?

A key is stored as a hash and shown once, and can be revoked or replaced; signed-in assistants cannot see sign-in details, store keys or billing.

What happens when I go over the keyword cap?

Nothing is deleted and the morning read keeps running; only adding more keywords stops.

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