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ASO and experiments

Average app rating calculator

Calculate the weighted average and distribution of your app’s one- to five-star ratings.

Build your scenario

Runs in your browser. No signup.

Starting values are editable examples.

Weighted average
4.69
Total ratings
1,000
Share of 4- and 5-star ratings
94%

Use a distribution from one store, region, and window. The store’s displayed average may be rounded or weighted differently.

How it works

Average = Σ(stars × count) ÷ Σ(count). Share of 4- and 5-star ratings = (n4 + n5) ÷ total.

Worked example

20 one-star, 10 two-star, 30 three-star, 140 four-star and 800 five-star ratings give a 4.69 average across 1,000 ratings.

Assumptions and limits

Use a distribution from one store, region, and window. The store’s displayed average may be rounded or weighted differently.

Frequently asked questions

How do I use the average app rating calculator?

Calculate the weighted average and distribution of your app’s one- to five-star ratings.

Can I average two stores’ averages?

Only if weighted by rating count. Preferably combine the original rating distribution.

Do I need an account and are my inputs uploaded?

No account is required. Calculations run in your browser. Entered numbers and text are not included in tool analytics events; only the tool ID, language, and action are recorded.

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