How we make this list: we compare pricing pages, product documentation and public user reviews. Rankite is independent; if a vendor ever pays for a featured spot, that listing is clearly labeled Partner.
Most app downloads start with a store search, and the apps at the top of those searches did not get there by accident. App store optimization covers the metadata, visuals and ratings that decide your ranking: the title, subtitle, keyword field, screenshots and reviews. The right software shows you which keywords drive installs, what competitors rank for, and whether a new screenshot set actually converts.
ASO tools split into a few jobs. Keyword research and rank tracking form the core. Creative testing checks screenshots and icons. Review management handles the ratings side. Market intelligence zooms out to category trends and competitor downloads. Few teams need every module on day one, so pick the tool that covers your current bottleneck.
We compared data depth for keywords and competitors, rank tracking accuracy, A/B testing options, review workflows, and pricing that fits teams from indie developers to large publishers.
| Tool | Best for | Starting price | Free plan |
|---|---|---|---|
 Sensor Tower | Publishers who need the deepest market and keyword data | See website | No |
 AppTweak | Teams wanting ASO, reviews and market data in one place | See website | No |
 SplitMetrics | A/B testing icons, screenshots and metadata | See website | No |
 App Radar | Indie developers and small studios on a budget | See website | Yes |
 ASOdesk | Keyword tracking and semantic core building at low cost | See website | Yes |
 MobileAction | Teams running paid ads alongside ASO | See website | Yes |
 Appfigures | Clean reporting and review monitoring | See website | Yes |
 AppFollow | Managing reviews and ratings at scale | See website | Yes |
We review this list regularly. Vendors can request a listing, send updated pricing or ask about featured placement.
Keyword research for apps works differently from web SEO because the stores give you limited space: a title, a subtitle and a keyword field on iOS, and a description-weighted index on Google Play. The winning approach is to build a semantic core of keywords grouped by intent, then assign the highest-value terms to the title and subtitle while the rest support them in the keyword field.
Start with competitor gaps rather than volume alone. Pull the keywords your closest competitors rank for, filter for terms where their ranking is weak, and target those first. These tools make that comparison visual. A keyword with moderate volume and weak competition beats a huge term owned by a giant.
Track in the right locales from day one. Rankings differ by country, and a keyword that converts in the US may flop in the UK. Set up tracking for every market that matters before you change metadata, so you have a baseline. Then change one thing at a time: metadata first, creatives second. If you change both together, you will never know which moved the needle.
Revisit the core quarterly. Competitors ship updates, Apple and Google tweak algorithms, and seasonal terms spike. The teams that treat ASO as a monthly habit, not a launch task, are the ones whose download curves keep climbing.
We prioritized tools with real data for both the App Store and Google Play, since single-store tools leave half the picture out. We checked keyword database depth, rank tracking reliability, the quality of A/B testing where offered, and review management workflows. Pricing had to be transparent enough to evaluate, and we favored tools with free tiers or trials so teams can verify data quality firsthand.
Start with keyword tracking, because everything else depends on knowing where you rank. App Radar or ASOdesk cover this affordably; Sensor Tower or AppTweak cover it deeply. Add review management once ratings start moving the needle, with AppFollow leading there.
Bring in A/B testing when you are ready to iterate on creatives regularly, which is SplitMetrics territory. Market intelligence matters most when entering new categories or countries. And if paid acquisition is part of the mix, MobileAction's combined view keeps organic and paid in one conversation.
We review this list regularly. Vendors can request a listing, send updated pricing or ask about featured placement.
Shihab has spent more than a decade helping SaaS and e-commerce brands grow through search. He writes Rankite's software buying guides from pricing pages, documentation and public user reviews. More about Shihab.