Asonix vs Astro ASO

Two App Store Optimization tools for iOS developers. Astro is a Mac app; Asonix runs in your browser. Here is how they compare, feature by feature.

Analyze my app

We make Asonix. Facts about Astro come from Astro’s own site and docs, checked .

Which is better, Astro or Asonix?

It depends on how you work. Choose Astro if you want a native Mac app that keeps your keyword data on your Mac, with notes and tags, or if you want to start free. Choose Asonix if you want to work in a browser on any device, cover all 175 App Store countries, and see competitors’ Apple Search Ads, Meta ads, downloads and revenue. Both track unlimited apps and keywords for about $100 a year.

Choose Astro if

  • You want a native Mac app.
  • You want your keyword data kept on your own Mac.
  • You organize keywords with notes, tags and folders.
  • You want to try it free first: Astro’s free version tracks up to 10 keywords.

Choose Asonix if

  • You want it in a browser, with nothing to install, on your Mac, a second computer or your phone.
  • You want rankings updated every day, even when your computer is off.
  • You need keyword popularity in all 175 App Store countries, not only the 91 where Apple Ads runs.
  • You want to see which apps advertise on your keywords, competitors’ Meta ads, and downloads and revenue for any app.
  • You want to know whether ChatGPT recommends your app.

Asonix and Astro side by side

“Not listed” means Astro’s site and docs don’t mention it.

Getting started
FeatureAsonixAstro
Where it runsAny browser, nothing to install: your Mac, your phone, Windows or LinuxA Mac app for macOS 14 and later
Daily updatesOn Asonix’s servers, whether your computer is on or offEvery 24 hours while the Astro app is running
Price$99/year$108/year ($9 a month, billed annually)
Free versionNo free planUp to 10 keywords, without popularity or difficulty
Apps and keywordsUnlimitedUnlimited
Google PlayNoNo
Keyword research
FeatureAsonixAstro
App Store countriesAll 175 storefronts91 storefronts, where Apple Ads runs
Keyword popularityApple’s own score, from Apple Ads, and an Asonix estimate where Apple only says 5, and in the 84 countries without Apple AdsApple’s own score, from Apple Ads, including its floor of 5
Ranking difficultyYesYes
Opportunity scoreYes: Search demand weighed against how hard the keyword is to rank forNo
Relevancy scoreYes: How well each keyword fits your appNo
Keywords your app already ranks forYes: In every countryYes: From keywords other Astro users have added
AI keyword suggestionsYes: Built in, and through the MCP serverNo
Competitors’ keywordsYes: Including the ones they rank for and you don’tYes
Keyword translationsYes: Google TranslateYes: DeepL
Research before launchYes: Unreleased appsYes: Temporary apps
Metadata EditorYes: Draft your title, subtitle and keyword field within Apple’s character limitsNo
Tracking
FeatureAsonixAstro
Rank trackingYes: Daily, with historyYes: Daily, with history
Tracked VisibilityYes: One score for how well your app ranks across the keywords you track, with popular keywords counting moreNo
App Store chart positionsYes: Free, paid and grossing, by day, with up to a year of historyNo
RatingsYes: Every country, with history and ratings velocityYes: Every country, with history
Competitor research
FeatureAsonixAstro
Apple Search Ads advertisers per keywordYes: In each countryNo
Competitors’ Meta adsYes: By countryNo
Download and revenue estimatesYes: Last month’s, for any appNo
AI and agents
FeatureAsonixAstro
AI Visibility in ChatGPTYes: Checked every weekNo
MCP server33 tools, online, from any MCP client13 tools (beta), on your Mac while Astro is open
Organizing keywords
FeatureAsonixAstro
Notes, tags and foldersStarred keywords onlyYes
CSV filesExport onlyYes: Import and export

What Asonix adds

Features Astro’s site does not list, as of October 21, 2026.

Storefronts scanned175 / 175
focus timerUS
Opportunity
24
Popularity
20
Difficulty
70
Top apps
Top advertisers
Downloads
40K
Revenue
$7K
专注计时器China
Opportunity
37
Popularity
38
Difficulty
64
Top apps
Top advertisers
Downloads
40K
Revenue
$10K
집중앱South Korea
Opportunity
50
Popularity
40
Difficulty
37
Top apps
Top advertisers
Downloads
100K
Revenue
$60K
集中タイマーJapan
Opportunity
42
Popularity
51
Difficulty
65
Top apps
Top advertisers
Downloads
30K
Revenue
$6K

Keyword popularity in all 175 countries

Astro covers the 91 storefronts where Apple Ads runs. Asonix adds its own popularity estimate for the other 84, such as Serbia.

Top advertisers for “focus timer”

8 successful checks in 7 days · US

Google Gemini100%Last seen 5 hours ago · 8/8 checks
App Lock & Screen Time — ANKO25%Last seen 2 days ago · 2/8 checks2 successful checks since
FlyFocus: Flight Mode Timer25%Last seen 6 days ago · 2/8 checks6 successful checks since
Focus Keeper - Pomodoro Timer13%Last seen 5 hours ago · 1/8 checks
Refocus: App Blocker & Lock13%Last seen 20 hours ago · 1/8 checks1 successful checks since
Freedom: Screen Time Control13%Last seen 4 days ago · 1/8 checks4 successful checks since

Showing 6 of 14 seen within 30 days.

See who’s paying for your keywords

The apps running Apple Search Ads on each keyword, in each country, and how often each one appears.

Opal: Screen Time Control

Focus, App Blocker & Timer

Downloads/mo
200k
Revenue/mo
$600k
Top 3 countries
US, GB, FR

Meta Ads

73 active ads
  • 119 days live
  • 50 days live

Competitors’ Meta ads

Browse competitors’ active Meta ad creatives by country and see how long they’ve been running.

Top grossingUnited StatesAll categories

App leaderboard

100 apps · Apple App Store

1ChatGPT iconChatGPTYour everyday AI assistant4.823m DL$293m Rev
2YouTube iconYouTubeVideos, Music and Live Streams4.77m DL$197m Rev
3TikTok - Videos, Shop & LIVE iconTikTok - Videos, Shop & LIVEWatch, discover and stream!4.75m DL$77m Rev
4Snapchat iconSnapchatShare the moment!4.56m DL$81m Rev
5Peacock TV: Stream TV & Movies iconPeacock TV: Stream TV & MoviesHit TV shows, movies & sports4.7700k DL$48m Rev
6Instagram iconInstagramVideos, creators & friends4.78m DL$900k Rev
7Paramount+ iconParamount+Originals, Movies and Sports4.6900k DL$45m Rev
8Claude by Anthropic iconClaude by AnthropicAI assistant for life and work4.78m DL$69m Rev
9Crunchyroll iconCrunchyrollStream anime shows and movies4.8800k DL$38m Rev
10LinkedIn: Community & Network iconLinkedIn: Community & NetworkFind Jobs, Insights and News4.83m DL$51m Rev

Chart stats

Worldwide estimates · last month

Median revenue
$13M
Median downloads
1M
Avg. app age
9 years
Avg. update frequency
Every 2 months

See who’s making money

Top grossing apps by country and category, with estimated downloads and revenue, and how they moved.

  1. 1. Choose your keywords
  2. 2. Prepare your listing

Your keyword shortlist

  • study timerPopularity 45
  • stay focusedPopularity 24
  • ai study companionPopularity 37
  • study plannerPopularity 10
  • focusPopularity 61
Title25/30
Study Timer: Stay Focused
Subtitle28/30
AI Study Companion & Planner
Keywords52/100
focus,​pomodoro,​deep,​work,​adhd,​exam,​lofi,​productivity

Draft your next App Store update

Turn your keyword shortlist into a title, subtitle and keyword field, inside Apple’s character limits.

ChartNowDays on chart
New Zealand
Productivity · Top free#6Today30
United Kingdom
Productivity · Top free#24Today12
US
Productivity · Top grossing#87Today21

Track your App Store chart positions

See where your app ranks in the App Store charts, day by day.

Week of Oct 12 · 24 active prompts · ChatGPT 5.6 · next run Oct 19

#BrandRecommended
ForestForest33.3%
Focus KeeperFocus Keeper20.8%
FreedomFreedom12.5%
4Your app12.5%
5BlockSiteBlockSite8.3%

See whether ChatGPT recommends your app

Every week, Asonix asks ChatGPT the questions your users ask, and shows which apps it recommends and why.

Daily update · Oct 16

Top 1 Rankings
122
Top 10 Rankings
344
Top 30 Rankings
4731
Top 100 Rankings
562

Rankings that update while your Mac is off

Asonix checks your keywords every day on its own servers. Open it in any browser and the data is already there.

What Astro does well

A native Mac app

Astro is built for macOS, with keyboard shortcuts such as ⌘K to add keywords.

Your data stays on your Mac

Astro keeps your data in a local database, and its MCP server accepts connections only from your own Mac.

Notes, tags and folders

You can add a note to any keyword, filter keywords with tags, and group apps in folders.

A free version

Astro’s free version tracks up to 10 keywords, without popularity or difficulty, so you can try it before you pay. Asonix has no free plan.

CSV import

Astro imports and exports keywords as CSV files, and can copy keywords from one country to another. Asonix exports CSV files but does not import them.

Pricing

Asonix

$99/year

  • Unlimited apps and keywords
  • Every feature, including Top Advertisers, Meta ads and AI Visibility
  • Any device, in a browser
  • No free plan

Astro

$108/year

  • $9 a month, billed annually
  • Unlimited apps and keywords
  • One Mac license
  • Free version with up to 10 keywords
  • Refunds within 14 days

Prices in USD, from each company’s site on October 21, 2026. Taxes may apply.

Switching from Astro

  1. In Astro, open the three-dot menu and choose Export Keywords to save your keywords as a CSV file.
  2. Sign in to Asonix with Google and add your app.
  3. Paste your keywords into Add keywords, separated by commas.

Astro’s rank history stays in Astro. Asonix also finds the keywords your app already ranks for, so you may not need to move every keyword.

Frequently asked questions

Is Asonix a good Astro alternative?

Yes, if you want to work in a browser. Both track keyword popularity, difficulty, rankings and ratings for iOS apps. Asonix adds all 175 App Store countries, Apple Search Ads advertisers, Meta ads, download and revenue estimates, and AI Visibility.

Does Astro work on Windows or on a phone?

Astro’s site lists macOS 14 and later only, sold as a single Mac license. Asonix runs in any browser, with nothing to install: on a Mac, a phone, Windows or Linux.

Does Astro update rankings when my Mac is off?

No. Astro’s docs say it updates keywords every 24 hours while the app is running. Asonix updates every day on its own servers.

Which is cheaper, Asonix or Astro?

Asonix costs $99/year and Astro costs $108/year. Both include unlimited apps and keywords. Astro also has a free version for up to 10 keywords; Asonix has no free plan.

Do Asonix and Astro both have an MCP server?

Yes. Astro’s MCP server is in beta, has 13 tools and runs on your Mac while Astro is open. Asonix’s has 33 tools and runs online, so Claude, Codex, Cursor and other MCP clients can reach it from any computer.

Can I use Asonix and Astro together?

Yes. They do not connect to each other, but you can export your keywords from Astro as a CSV file and add them to Asonix.

Sources

We make Asonix. Facts about Astro on this page come from Astro’s own site and docs, checked October 21, 2026. Check Astro’s site for its current details.

Astro is a product of 28 bit S.R.L.. Asonix is not affiliated with Astro.

Find your edge in a crowded App Store.

$8.25/month

$99 billed annually

Unlimited apps and unlimited keywords.

Get started

Everything included

  • Keyword demand
  • Keyword relevancy
  • Ranking difficulty
  • AI keyword suggestions
  • Keyword translations
  • Country opportunity
  • Top advertisers by keyword
  • Competitor Meta ads
  • Download and revenue estimates
  • Worldwide ratings, velocity & history
  • Rank tracking
  • App Store chart tracking
  • AI Visibility
  • MCP server for AI agents

No App Store Connect access needed. Prices in USD. Taxes may apply.