ASOptimusA Sensor Tower alternative for indie devs
Updated July 20, 2026 · prices as publicly reported at publication — check vendors for current pricing
Here's the pattern: an indie dev goes looking for keyword data, lands on Sensor Tower because it's the biggest name in app intelligence, opens the pricing conversation — and meets a sales-led contract publicly reported at roughly $500 to $5,000+ per month. That's not a rip-off; it's just a product for a different buyer. Publishers, funds and UA teams pay it for market-wide download and revenue estimates across everyone's apps.
What most indie devs actually wanted from that visit is much narrower: which keywords can my app realistically win, and what should my title and subtitle say? That's the whole job of ASOptimus — an app store optimization tool that runs deep keyword research on demand and charges per run, not per seat per year.
The short version
Pick Sensor Tower if you…
- need market-wide download & revenue estimates
- benchmark competitors and categories professionally
- run UA at scale and need ad intelligence
- have an enterprise budget and a procurement process
Pick ASOptimus if you…
- ship your own apps and need winnable keywords
- want research you can rerun for dollars, not thousands
- want every score to expand to the raw store data behind it
- prefer local-first: your research stays on your machine
Side by side
| Sensor Tower | ASOptimus | |
|---|---|---|
| Built for | publishers, funds, UA & market-intel teams | indie developers |
| Pricing | sales-led contracts, reported ~$500–$5,000+/mo | pay-per-run credits (1 credit = $1) · free during beta |
| Buying process | demo call, quote, contract | join the waitlist, get a key, run |
| Core output | market estimates: downloads, revenue, trends, ads | ranked keywords + assembled title & subtitle for your app |
| How scores are made | proprietary estimation models | formulas printed on the site; every number expands to the raw store response behind it |
| AI involvement | AI features across the platform | relevance scoring only, fixed 0–3 rubric with a written reason — demand and difficulty stay deterministic code |
| Where data lives | their cloud | your machine — brief, runs and the full research trail stay local |
| Storefronts | App Store + Google Play, global | 20 country storefronts at beta start, US included |
| Status | mature enterprise product | free beta, waitlist |
Sensor Tower doesn't publish prices; the range above is what customers report publicly (July 2026). Verify with the vendor.
What ASOptimus deliberately doesn't do
No download or revenue estimates for other people's apps. No category trend dashboards. No ad intelligence. If your job is market analysis, ASOptimus is not a discount Sensor Tower — it's a different instrument that happens to serve the keyword need indies came for.
What you get instead
You write a plain-text brief about your app. ASOptimus runs thousands of live store probes and returns ranked keywords with three scores each — demand, difficulty, relevance — plus a title and subtitle assembled from the winners. Every score is auditable: the exact autocomplete prefix and rank behind demand, the ten apps behind difficulty, the full reasoning behind relevance. No estimates you have to take on faith.
FAQ
Is ASOptimus a market intelligence platform?
No. It doesn't estimate downloads or revenue and has no market dashboards — it researches
keywords for your app, deeply and auditable.
What does it cost next to Sensor Tower?
Free during beta; after launch, pay-per-run credits at 1 credit = $1, debited per
verified keyphrase. A deep research run costs dollars, not a contract.
Who should still buy Sensor Tower?
Teams that genuinely need market-wide estimates and ad intelligence. If that's your job, an indie
keyword tool is not a substitute — and we'd rather say so here than in your refund email.
Waitlist is processed in order · live apps get onboarded first · no card required