The Ranksy vs Letsmetrix choice depends on whether you need to know which keyword pays. Letsmetrix fits if you want a cheap or free start: rank tracking for a few keywords, competitor alerts, AI review insights, a listing audit and a short revenue snapshot, with a free plan for one app and paid plans at $19 and $49 a month. Ranksy fits if you want each install followed to its trial, its subscription and the keyword or source behind it, with unlimited keywords and your full revenue history, from $39 a month.
Letsmetrix began as a Shopify App Store research site and added developer plans. Ranksy is built around your own Partner API and BigQuery data. They overlap on rank and competitor tracking.
Feature comparison
Competitor details come from Letsmetrix's public pricing page at letsmetrix.com/pricing, checked on November 5, 2026.
| Ranksy | Letsmetrix | |
|---|---|---|
| Keyword tracking | Daily keyword and category rankings, unlimited keywords per app. Organic and sponsored positions shown separately. | Daily keyword digest. 3 keywords per app on Free, 20 on Pro, 100 on Studio, unlimited on Agency. Weekly category digest. |
| Competitors | Competitor rankings and listing changes, marked on your charts. | Competitor tracking and movement alerts. 1, 5, 20 or unlimited competitors per app by plan. |
| Reviews and listing | Review alerts and reviews on each merchant's record. Listing optimizer for copy suggestions. | AI review insights, user stories, a full ASO audit with category benchmark, and an AI ASO writer on paid plans. |
| Revenue & churn | MRR, churn, trials, cohorts and LTV from the Partner API, with your full history. | Revenue and churn snapshot from the Partner API. History limited to 14 days on Free, 90 on Pro, 365 on Studio, full on Agency. |
| Revenue by keyword | Installs, trials and MRR by App Store keyword and traffic source, from your listing's GA4 export in BigQuery. | GA4 page views and installs. Revenue by keyword not listed. |
| Customer records | One record per store install: plan, revenue, a 0–100 health score, notes, tags, tasks and the source that brought it. | Not listed. |
| AI/MCP access | MCP server and REST API on every plan: 5,000 calls a month on Starter, 25,000 on Studio. | No API or MCP server listed. Excel and CSV export on Pro and above. |
| Pricing | Starter $39/mo (3 apps), Studio $89/mo (10 apps). | Free (1 app), Pro $19/mo (3 apps), Studio $49/mo (10 apps), Agency custom. |
| Free trial | 7 days, no credit card, with Studio's app and API limits. | Free plan, no card. Trial length not stated. |
Where Letsmetrix is the stronger choice
Letsmetrix is cheaper. It has a free plan for one app, and its Pro and Studio plans cost $19 and $49 against Ranksy's $39 and $89 for the same three and ten apps. If you mostly want to watch a handful of keywords and a few competitors, it does that for less.
It also does more with reviews and the listing itself. AI review insights, user stories pulled from reviews, a full ASO audit with a category benchmark and an AI listing writer are all on its paid plans. Letsmetrix's public site also has store-wide research tools: category data, app comparisons and a churn calculator.
Keyword limits
Letsmetrix caps keywords per app: 3 on Free, 20 on Pro and 100 on Studio. Ranksy has no keyword cap on either plan. If you track a long list of keywords, or keywords for several markets, the limit matters before the price does.
Revenue by keyword: the main difference
Letsmetrix shows a revenue and churn snapshot from the Partner API and GA4 page views and installs, each limited to a history window set by your plan. It doesn't list a way to connect the two.
Ranksy reads your listing's GA4 export in BigQuery and follows each install to its trial and its paying subscription, with no history limit. You see which keyword or source brought paying merchants and how much MRR, next to its daily rank. That tells you which keywords to keep in your listing and which ones to bid on in App Store ads.