Concepts and metrics

How store search works, and what every Applyra score measures.

• How App Store and Google Play search workBoth stores index a handful of text fields, then order the matches by strength. Here is what the App Store and Google Play read, and what they ignore.
• How the visibility score worksApplyra's visibility score turns your positions across your niche into one number per app and market, recomputed every day, so you always know where you stand.
• The ASO Health score and its three axesASO Health is Applyra's 0 to 100 score of how well your listing is built: keyword coverage, targeting fit and store appeal. The weakest axis is your lever.
• What the keyword traffic score measuresApplyra's traffic score rates search demand for one keyword on one storefront, 0 to 100, read from the store's own autocomplete. Low under 25, High from 67.
• What the keyword difficulty score measuresApplyra's keyword difficulty score rates how hard a term's top results are to break into, 0 to 100, so you know which keywords you can win before you write.
• KEI, the Keyword Efficiency Index: which keywords are worth itIn Applyra, KEI weighs a keyword's demand against its competition: 1.0 and above is Excellent, 0.6 is Good, 0.4 is Moderate, below that the competition wins.
• Markets: country and language, per storeA market in Applyra is a store, a country and a listing language. Rankings, scores and keywords are all measured per market, never globally.
• Where Applyra's ranking data comes from, and how fresh it isApplyra reads the stores' own public search results, the top 100 per keyword and market, every day. No panel, no estimate, no third-party data source.
• The metadata fields each store indexes, and their limitsWhich App Store and Google Play fields count for search, their character limits, and how the stores really count them. Not bytes: UTF-16 code units.