An ASO tool covering the iOS App Store and Google Play: keyword popularity and difficulty, daily rank tracking, competitor keywords, review monitoring, and app revenue estimates, with an MCP server, CLI, and API so AI agents like Claude, ChatGPT, and Cursor can call it directly.
Slovak indie deOne-line growth story, compiled by us from public sources; speculation is marked separately below.
Real payments synced by TrustMRR, in USD, by calendar month, renewals included.
“No referral, share or badge mechanics; Agency plan has 5 seats (paid feature); npm packages @sonarapp/mcp and @sonarapp/cli not described as open source; listed in Claude directory and as ChatGPT app.”Quote from the site
New-user source: SEO (Non-brand search). Similarweb 2026-09: the top channel is direct at 50.0%, organic search about 37.5%, email about 7.5%, paid 0%, and the only social source is YouTube; the top keywords include the brand terms sonar aso and trysonar and competitor terms such as "sensor tower" and "sensor tower pricing", which shows it intercepts traffic through competitor-alternative searches. The site blog has 121 articles in total (18 on a single page between 2026-09-16 and 10-23, close to one a day), covering App Store rankings, Apple Search Ads, and listing tips, plus a "Sonar vs Sensor Tower" comparison page. The product is also listed in the Claude directory and on ChatGPT, and the MCP server is the entry point for agents. The founder is Slovak, and Slovakia accounts for 34% of traffic (speculated to come from his own circle and local communities). TrustMRR has no marketing channel filled in. Existing users come back through subscriptions, rank tracking, and monthly credits.
Top channel measured by Similarweb, others estimated by rank
| Attributable new users, last month | Share |
|---|---|
| SEO | 22% |
| Other | 78% |
Direct + brand search 65%. Direct and brand search count as viral only when the site shows sharing mechanics; the largest share wins, under 5% means Other.
| Country | Share of visits |
|---|---|
| Slovakia | 34.19% |
| United States | 9.55% |
| Spain | 7.49% |
| Brazil | 4.47% |
| Vietnam | 4.06% |
English
YouTube
162 keywords · brand ~65% · organic 100% / paid 0%
| Similarweb top 5 keywords |
|---|
| sensor tower |
| sonar aso |
| sensor tower pricing |
| sensortower pricing |
| trysonar |
Non-brand queries: sensor tower, sensor tower pricing, sensortower pricing
| Category | Share of referrals |
|---|---|
| Computers Electronics and Technology - Other | 2.14% |
About $4,325 last month (real payments synced by TrustMRR), #272 of 563 TrustMRR sites; the month before was $3,048.
New-user source: SEO (Non-brand search). New users mostly come from need-based searches Similarweb 2026-09: the top channel is direct at 50.0%, organic search about 37.5%, email about 7.5%, paid 0%, and the only social source is YouTube; the top keywords include the brand terms sonar aso and trysonar and competitor terms such as "sensor tower" and "sensor tower pricing", which shows it intercepts traffic through competitor-alternative searches. The site blog has 121 articles in total (18 on a single page between 2026-09-16 and 10-23, close to one a day), covering App Store rankings, Apple Search Ads, and listing tips, plus a "Sonar vs Sensor Tower" comparison page. The product is also listed in the Claude directory and on ChatGPT, and the MCP server is the entry point for agents. The founder is Slovak, and Slovakia accounts for 34% of traffic (speculated to come from his own circle and local communities). TrustMRR has no marketing channel filled in. Existing users come back through subscriptions, rank tracking, and monthly credits.
Indie $29/month ($290 billed annually): 10 apps, 2,500 tracked keywords; Agency $149/month ($1,490 billed annually): 50 apps, 5 seats; API credit packs from $10/1,000 to $100/15,000; 50 credits free on sign-up, plus 7 free endpoints that need no account; 7-day trial requires a card
Dossier confidence: medium. Parts 1 and 2 come from reading the site and Similarweb data; part 3 from public reporting, founder posts, Wayback snapshots, WHOIS and similar, with speculation marked.
The numbers: revenue comes from TrustMRR: real payments synced automatically from the founder's Stripe or other payment account, summed by calendar month, renewals included, in USD. Site visits come from the Similarweb public page; where it shows none, they are estimated from global rank or the TrustMRR payment count, as noted on the page.
Data through last month. Page updated 2026-10-31.
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