Review miningFree tools · 5
The arithmetic half of ASO,
without an account.
A keyword's difficulty, the characters going to waste in your 100, the words your rivals carry and you do not, the searchable phrases hiding in reviews, and what an improvement is worth - all five run here, in your browser.
Keyword difficulty calculator
Work out how hard a search term's first page is to take, with the formula the product itself runs.
Open the tool →Metadata checker
Audit your title, subtitle and the 100-character keyword field, and see how many characters are being wasted.
Open the tool →Competitor keyword gap
Pull out the words your rivals' metadata carries and yours does not.
Open the tool →Review keyword extractor
Paste user reviews and get the searchable phrases back, with the narration filtered out.
Open the tool →ASO ROI calculator
Put a monthly and yearly figure on a ranking improvement, in your own numbers.
Open the tool →
The rules these tools follow
No account needed
None of them asks for a sign-up, an e-mail or a card. Open it, type, read the answer.
Your data stays in your browser
The calculation runs on your device; the metadata or reviews you type never reach our server.
The product's own formulas
The difficulty score and the n-gram extraction are the same functions the daily sweep runs. The number here is the number you would see in the product.
No invented coefficients
We estimate nothing we cannot measure. A field you leave empty is not counted as zero; the result stays an em dash.
Why these run without an account
The fastest way to understand what an ASO tool does is to run it once. So every calculator here works without an account, without an e-mail address and without installing anything.
Each one is a small version of the same logic: the calculation the panel runs every day across 175 storefronts, run once here for a single metadata set or a single phrase. The number that comes out is the output of the same method - not a different formula, the same formula run once.
That means you can audit the method before paying for it. If you can verify a calculator's number by hand, you can trust the version of it that runs at scale. If you cannot, the scaled version does not deserve trust either.
None of them store anything. The metadata you type does not leave your browser; no record is created on a server. A setup that requires your data before you can try it has already turned a trial into a decision.
Which tool answers which question
Five calculators answer five separate questions, and there is an order to them. Using them out of order means answering a question you are not ready for.
The metadata audit is the first question: how much of your 100 characters are you actually using? Put the app name, subtitle and keyword field side by side and the repeats, spaces and stem duplicates are counted. What comes out is a count, not an estimate.
Keyword difficulty is the second: how crowded is the phrase you are aiming at? How many apps carry it in their title, and what are the rating counts of the ones at the top? Those two say whether the phrase can be taken with metadata at all.
The character calculator is third: does what you wrote fit, and how many characters are idle? Fourth is phrase combination - the words in the keyword field combine freely, and most teams never account for the combinations that produces.
Fifth is the country comparison: how does the same phrase behave in two storefronts? That is the one number worth looking at before opening a new country.
- Metadata audit first: how much room do you actually have?
- Then difficulty: can this phrase be taken with metadata?
- Then characters and combinations: how is the field written more efficiently?
- Country comparison last: where should you open?
What a calculator cannot tell you
A calculator gives you one photograph. What it cannot give you is how that photograph changes.
The metadata audit says how many characters come back; it does not say what your rank will be once you use them. The only way to know that is to measure before and after a move - and a one-shot tool keeps no history.
The difficulty calculator shows how crowded a phrase is today. In three months the same phrase may be more crowded or emptier, and the only way to see which is to run the same measurement again and compare the two tables.
And none of them keep a control group. When your rank drops, telling your own move apart from the market's requires knowing what the phrases you did not touch did that same week.
So the calculators show the method; they do not show continuity. Continuity is the panel's job - and that is where the real difference is.
What can be done by hand, and what cannot
Every calculation here can be done by hand, and we would rather say so plainly.
Finding one phrase's rank in one country takes five minutes: search, scan the first 200, count. Doing the metadata audit by hand takes half an hour: put the two texts side by side, count the shared words, count the spaces after commas.
What cannot be done by hand is repeating that across 175 storefronts every day. Each measurement is one request to Apple, the requests per second are capped, and phrases multiplied by countries is not a number a person repeats daily.
The second thing that cannot is review mining. Reading thousands of reviews, pulling out phrases, stripping pronouns and brand repeats, and folding what is left by the country's own letter rules can be sampled at small scale but not done systematically.
A tool's value sits exactly in that second list. One that does the first list saves you time; one that does the second makes a job possible that was not.
Frequently asked
- Do I need to sign up to use these?
- No. None of them ask for an account, an e-mail address or an install, and the metadata you type is not stored on a server.
- Are these numbers the same as the ones in the panel?
- They are the output of the same method. The difference is continuity: the panel repeats the same calculation across 175 storefronts every day and keeps the history, while these give you one photograph.
- Which one should I start with?
- The metadata audit. Choosing a target without knowing how much usable room you have is like buying furniture without measuring the wall.
- Can I save the results?
- One-shot tools keep no record. Following a measurement over time - which is the only way to see what a move did - is the panel's job.
Where the tools end and the product begins
Every calculation here is a one-off: one keyword, one metadata set, one pile of reviews. By hand a keyword takes a few minutes, and at the end of those minutes you have a single snapshot.
An app's keyword pool holds hundreds of phrases, ranks separately in every storefront, and which of them fall into the 11-30 band changes every week. That is exactly what rankcusp does: it builds the pool from three channels, measures daily, separates the band and proposes one move per keyword.
The difference is not a feature, it is continuity. When the measurement does not run every day you miss both the day a rival shipped and the day your own change took hold.