Short answer
Astro is a Mac app with Apple Search Ads popularity and unlimited keywords for $108 a year. Look elsewhere if you don’t use a Mac, want to pay monthly or start free, or need Google Play.
Marteso is the best free alternative. ASO Mochi, which I make, is $9 a month in a browser and shows which release moved your ranks. Kōmori is the closest Mac app with monthly billing. ASO.dev runs on Mac and Windows. AppTweak, Appfigures and ASOMobile cover both stores.
When to stay with Astro
Astro is a Mac app that pulls keyword popularity straight from Apple Search Ads, scores how hard each keyword is to reach the top 10 for, and tracks unlimited keywords with daily rank updates in the 60+ storefronts where Search Ads runs. It also suggests keywords, pulls rivals' keywords and translates them. There's one plan: $108 a year for one Mac license, with 14 days to ask for a refund. Its demand data is better than ASO Mochi's: Apple's popularity numbers are finer than our autocomplete dots. If that fits how you work, keep it. The alternatives below are for the cases where it doesn’t.
Seven Astro alternatives
Price is the cheapest paid plan that tracks keyword ranks, roughly low to high. Free plans and trials are listed under it.
| Tool | Price | Why switch from Astro | What you give up | Platform |
|---|---|---|---|---|
| ASO Mochi | $9/mo, billed monthlyFree forever: 1 app, 25 keywords, 30 days of history.Our pricing | Runs in any browser, $9 billed monthly with a free plan, and marks every release on your rank history. | Search Ads popularity (you get 1 to 5 autocomplete dots) and unlimited keywords. | Web. App Store only. |
| Marteso | Free plan. Pro €18 per app a month.Free forever: 2 apps, 50 keywords each, 5 countries.Vendor pricing | Free forever for 2 apps and 50 keywords each, in a browser. | Price on Pro if you have several apps: it's €18 per app a month. | Web. App Store only. |
| Kōmori | $19.99/mo, or $199.99 a yearNone. 3-day trial on the monthly plan.Vendor pricing | Also a Mac app, but sold monthly, with AI keyword ideas and review analytics. | Price: $199.99 a year against Astro's $108. | Mac app (macOS 14+). App Store only. |
| ASO.dev | $39/mo per seat, or $29/mo billed yearlyNone. 3-day trial.Vendor pricing | Runs on Mac and Windows and replaces most of App Store Connect. | Price and history: $29 to $39 a month for keyword tracking, with 30 days of history. | Mac and Windows app. App Store, plus Google Play listings. |
| Appfigures | $44.99/mo, or $35.99/mo billed yearlyFree plan for sales and downloads. No keyword allowance listed.Vendor pricing | Both stores, plus downloads and revenue reporting. | Keywords: 100 on the first plan that tracks them, for 4x Astro's price. | Web. App Store and Google Play. |
| ASOMobile | $59/mo, or $47/mo billed yearlyFree: 2 apps, 20 keywords, no card.Vendor pricing | Both stores, 500 keywords, competitor tracking and an API. | Price: $47 to $59 a month. | Web. App Store and Google Play. |
| AppTweak | From $79/mo billed yearly ($949), for 5 appsNone. 7-day trial.Vendor pricing | The deepest keyword and Apple Ads data, on both stores. | Price: from $949 a year. | Web. App Store and Google Play. |
The alternatives, one by one
ASO Mochi
$9/mo, billed monthly · Web. App Store only.
ASO Mochi is a daily App Store rank tracker for indie iOS developers. It checks the top 200 for every keyword each day and marks the days you or a rival shipped an update, so you can see which release moved which keyword. Indie is $9/mo (3 apps, 100 keywords each, a year of history, 10 countries per app), Studio is $19/mo, and the first 100 founders can pay $149 once. It's new, made by one person, App Store only, and your rank history starts the day you add a keyword.
- Pick it if
- you ship often and want to know which update, or which post, moved your ranks.
- Skip it if
- you need Google Play, Search Ads popularity numbers, or download estimates for other apps.
Marteso
Free plan. Pro €18 per app a month. · Web. App Store only.
Marteso is a web ASO tool for indie iOS developers. The free Starter plan tracks 2 apps with 50 keywords each in 5 countries, updated daily, with 3 competitors per app. Pro (€18 per app a month, about 17% less billed yearly) adds 500 tracked keywords, 180+ countries, an AI metadata optimizer, a keyword gap report and metadata change history. Its free plan is more generous than ASO Mochi's.
- Pick it if
- you want to start free, or you have one app and want AI help with metadata.
- Skip it if
- you have several apps on a paid plan, since the price climbs with each one.
Kōmori
$19.99/mo, or $199.99 a year · Mac app (macOS 14+). App Store only.
Kōmori is a native Mac app for ASO: keyword research with AI suggestions and difficulty and popularity scores, daily rank checks with 30-day charts, competitor keyword overlap, review analytics across 90+ countries and CSV export. It's $19.99 a month or $199.99 a year, and the Mac App Store also sells a $499.99 lifetime unlock.
- Pick it if
- you like the Mac app approach but want monthly billing.
- Skip it if
- price matters most: Astro does the core job for $108 a year.
ASO.dev
$39/mo per seat, or $29/mo billed yearly · Mac and Windows app. App Store, plus Google Play listings.
ASO.dev is a desktop client for App Store Connect and Google Play with ASO on top. The Console plan ($19, or $15 billed yearly) edits metadata, pricing and releases but has no keyword tracking. Indie adds keyword and competitor rankings, an ASO check and category ranks, with 30 days of history. Google Play keyword ranks are listed as coming soon.
- Pick it if
- App Store Connect itself is the part you hate, and keyword ranks are a bonus.
- Skip it if
- you only want rank tracking, or want more than 30 days of history without paying for Pro.
Appfigures
$44.99/mo, or $35.99/mo billed yearly · Web. App Store and Google Play.
Appfigures is best known for sales, downloads and revenue reporting. Keyword rank tracking starts at the Monitor plan: 100 keywords, updated daily. Optimize ($149.99/mo, or $119.99 billed yearly) has 500 keywords updated hourly. Every plan includes 5 connected apps.
- Pick it if
- you want app analytics and ASO from one vendor, on both stores.
- Skip it if
- you only need rank tracking: you'd pay for analytics you already get in App Store Connect.
ASOMobile
$59/mo, or $47/mo billed yearly · Web. App Store and Google Play.
ASOMobile's Indie plan tracks 500 keywords across 5 apps with 50 competitors and 1,000 API credits. Pro ($119/mo, or $95 billed yearly) adds more keywords, team seats, AI and Apple Search Ads features. Paid trials last 3 days, and the free plan needs no card.
- Pick it if
- you track many keywords on both stores and want API access.
- Skip it if
- you're a solo iOS developer with one or two apps: it's more tool than you need.
AppTweak
From $79/mo billed yearly ($949), for 5 apps · Web. App Store and Google Play.
AppTweak is a full ASO suite and the deepest data set here. Essential ($79/mo billed yearly for 5 apps, $99 for 10) includes 500 keywords and 6 months of history for one seat. Grow starts at $299/mo. Most solo developers won't use enough of it to justify the price.
- Pick it if
- ASO is part of your job, you work on both stores, or you report to someone.
- Skip it if
- you're one person with one or two iOS apps.
How this was checked
Prices and plan limits come from each vendor’s own pricing page, read on October 23, 2026, and every price links to its source. Where a vendor’s page doesn’t say something, this page doesn’t claim it. Prices change: if one here is out of date, email aloha@mahalomochi.com and I’ll fix it.
Choosing your first ASO tool instead? See the best ASO tools for indie iOS developers, Astro included.