ExtensionASO
Chrome Web Store optimisation tools for extension publishers.
Standalone $2.99/mo or $29.90/yr.
Why it matters
What ExtensionASO does that nothing else does
- Benefit 1:
Search-volume insight for extension keywords — find what users actually type.
- Benefit 2:
Title and description testing inside the Chrome Web Store editor.
- Benefit 3:
Competitor monitor: track installs, ratings, and reviews on rival extensions.
- Benefit 4:
Pro adds historical install trends, keyword rank tracking, and CSV exports.
Pricing
Buy ExtensionASO alone, or get the bundle
Use only this extension? Buy it standalone. Use three or more Aegis extensions? The Pro Pack pays for itself.
Standalone
ExtensionASO Pro
$2.99/mo
Or $29.90/yr — save when paid annually.
Pro tier on ExtensionASO only. Cancel anytime.
Get ExtensionASO ProBest value
Save $21/yrAegis Pro Pack
$9.99/mo
Or $99/yr — covers every Aegis extension you install.
Unlocks Pro on ExtensionASO and every other Aegis extension. New extensions included automatically.
Get the Pro PackBuilt the Aegis way
Privacy you can verify, not just claim
On-device by default
Every Aegis extension runs in your browser. No silent cloud upload, no server-side processing of your activity.
Never sold, never bundled
Aegis extensions never change ownership. Updates come from the same publisher you trusted at install.
No account required
Install and use immediately. Pro features unlock with a single sign-in to your Aegis Pro Pack.
MV3-native
Built for Chrome Manifest V3 from day one — no deprecation warnings, no broken background pages.
Why switch
ExtensionASO vs Sensor Tower
Sensor Tower covers mobile app stores and starts at a high enterprise tier. ExtensionASO is built specifically for Chrome Web Store publishers, ships at a fraction of the price, and runs inside the CWS editor where listing changes happen.
| Feature | ExtensionASO | Sensor Tower |
|---|---|---|
| Monthly price | $2.99/mo | $99.00/mo |
| Account required | No — install and use immediately | Often yes (varies by competitor) |
| Data leaves the browser | No — on-device by default | See competitor privacy policy |
| Ownership transfer risk | Aegis never sells extensions | Varies — see ExtensionWatch in this catalog |
| Bundled with Aegis Pro Pack | Yes — $9.99/mo unlocks every extension | No bundle |
See it in action
ExtensionASO screenshots


More screenshots and the full feature walkthrough live on the ExtensionASO landing page.
Common questions
- Where does the search-volume data come from?
- Aggregated suggest data from Chrome Web Store search APIs combined with the public install / rating data on competitor listings. No browsing data from your install base is sampled.
- Can I A/B test my listing?
- The CWS does not expose a true A/B testing API. ExtensionASO surfaces the keyword rank changes after each listing edit so you can run before/after comparisons against your own previous version.
- Will ExtensionASO scrape competitor reviews?
- No. The competitor monitor reads the public listing pages the way any user can. There is no off-store scraping and no impersonation of CWS clients.
- How does the Aegis Pro Pack unlock ExtensionASO?
- Sign in to aegisfirma.com from any installed Aegis extension popup. The cookie-auth flow detects your active Pro Pack and unlocks Pro features instantly — no license key to copy or paste.
- Where is my ExtensionASO data stored?
- ExtensionASO stores everything in chrome.storage on your device. Your subscription record lives in our payment provider's account; we do not aggregate browsing or activity data.
- Can I cancel ExtensionASO Pro anytime?
- Yes — billing stops at the end of the current period. Pro features remain active until the period ends, then drop back to the free tier.
- Why should I trust an extension I just heard of?
- Aegis extensions never change ownership and never sell user data. We publish security audit results and ship MV3-native code so Chrome itself enforces the permissions we claim.
Try ExtensionASO free, upgrade when ready
Free tier covers the basics. Pro Pack at $9.99/mo unlocks every Aegis extension at once.