Your next app is
already being complained about.
Every 1-star review is someone who wanted the product enough to try it, and did not get it. Underserved reads those reviews across both stores and every country, and shows you where the demand is going unmet.
Start with any App Store or Google Play link — a rival, a category leader, or an app you think is coasting.
No store login. No console access. We read public data only — what we never see, we can never leak.
One app, read end to end
Every score, theme and quote below is queried live from our own database. This is the whole output for a single app — not a mock-up, and not written by hand.
This niche is very winnable: Paprika has a loyal installed base, but a visible cluster of paying users is angry about being charged again for every new version and platform, losing their recipe libraries, and watching import/OCR features fall behind free competitors. A challenger that buys them once with a fair cross-platform price and reliable migration can pull a meaningful share of these users immediately.
What users keep complaining about
Grouped from the public reviews of this app. Every theme is a summary of what reviewers wrote, and the quote under it is theirs.
“Tja, twee keer betalen voor dezelfde app... Een keer vind ik meer dan genoeg.”
“Depuis la dernière version qui rend la synchronisation des recettes payante, toutes mes anciennes recettes qui avaient été sauvegardées ont simplement été supprimées - aucun moyen ”
“kein Import von Instagram Rezepten möglich leider ist kein Import von Instagram Rezepten möglich.”
“You are not able to scan a recipe or import from a PDF file.”
Each quote is matched word for word against the review it came from before it is shown. Open any theme in the app to read the raw reviews behind it.
Where it is weakest
The same app, rated market by market. A gap in one country cannot hide behind a good home-market average.
Best market: en at 4.81 — a 0.93 star spread that a home-market summary never shows.
What a challenger would build
Written from the complaints, not from a hunch. This is the part that goes straight into a roadmap.
- Buy-once cross-platform licence covering phone, tablet, desktop and web, including family sharing.
- Native share-sheet import from Instagram, TikTok, Facebook, YouTube and other apps instead of a clunky built-in browser.
- Photo/PDF/OCR import so users can digitise recipes from books, magazines and screenshots.
- Ingredient-level search and 'what can I cook with what I have' matching against the pantry.
- Correct metric and local-unit handling (grams, ml, msk, EL, etc.) with ingredient-aware conversion.
And how the challenger should charge for it
Reviews are the clearest evidence there is of what a market will and will not pay for. We read the money complaints too, and say where to put the gate — not just what to build.
A one-time cross-platform unlock of $14.99–$24.99 with a free trial, plus an optional ~$2.99/month cloud-sync/family-sharing tier. Reviewers explicitly say they refuse to pay per platform or per major version ('Pay for every version', 'Skal købes seperat for iphone og mac'), so the headline price must feel like a single fair purchase, not a per-device tax.
Gate at 50 saved recipes and at the first meal-plan/grocery-list export. Keep website recipe import free for 10 recipes so users can validate the core value before paying; after the 50th recipe or the first sync/export, require the one-time unlock.
Unlimited manual recipe entry, categories, search and recipe viewing stay free forever, so the app still spreads by word of mouth; paid features are web import, photo/PDF OCR, meal planner, grocery list and cross-device sync.
Plus the pricing mistakes costing this incumbent money right now — 4 of them, each traced back to the reviews complaining about it.
Rating over time, both stores
Underneath all of this sit the 1,409 reviews it was read from — searchable, filterable by star, language and country, and exportable to CSV, Excel or JSON at no credit cost. Run this on your own market.
Read the market before you build for it
Niche scan
- Pick a category and a country, get the apps users are most let down by
- Ranked by an opportunity score, with the reasoning shown
- Complaint themes grouped, so you see demand instead of noise
Quotes you can trust
- Every quote matched word for word against the source review
- If the model invents a quote, we drop the report rather than print it
- Open any finding to read the raw reviews behind it
Gaps per country
- An app can be loved in the US and hated in Germany
- Complaints in one language rarely reach the developer in another
- Country-level gaps carry the least competition
Weak-incumbent signals
- See whether the developer still replies to users
- Spot listings going stale — versions that stopped moving
- A busy category with an absent incumbent is the best kind
Both stores, one picture
- Link an iOS app to its Google Play counterpart
- Compare what breaks on each platform
- Google Play developer replies included
Read the evidence yourself
- Sort lowest rating first, filter by language, country, store
- Full-text search across every review you have pulled
- Rating trend charts over time
Watch a market
- Daily refresh on the apps you track
- Alerts to Slack, Telegram or Discord when the reviews turn
- Catch an incumbent slipping before anyone else does
Your data, portable
- CSV, Excel and JSON export at no credit cost
- Your workspace keeps everything you have pulled
- Refetch any time for fresh data
And where to put the paywall
Finding the gap is half of it. Every report also says how a challenger should charge — one-time unlock or subscription, the price band the reviews support, what has to stay free, and the exact point to gate: after the fifth category, the third export, the tenth round. Users write down what they refuse to pay for. We read that part too.
- The pricing model the complaints actually support
- Where the gate goes, in the app's own units
- What stays free so the app still spreads
- The pricing mistakes driving the incumbent's refunds
A category and a country. Or paste one app you already suspect is weak.
A slice of every market, both stores — so a gap in one country cannot hide.
Themes, an opportunity score, and the quotes that prove it.
Ship against real complaints instead of a hunch.
A scan costs 5 credits. A full report on one app costs 3. Your 5 free credits cover a whole scan, or a report plus two app pulls — see pricing.
Build what people already asked for
Choosing without evidence
- Building something nobody asked for
- Picking an idea from a Twitter thread
- Reading a handful of reviews in one language
- Guessing whether the market leader is beatable
- Finding out demand was thin after three months of work
- Copying a competitor without knowing what users hate about it
- Guessing a price and a paywall, then watching refunds come in
With Underserved
- Building against complaints people already wrote down
- Picking from a ranked list of unmet needs
- Reading every country and language at once
- Seeing whether the incumbent still shows up for users
- Knowing the size of the gap before you write code
- Knowing exactly which part of a competitor to beat
- Knowing where to put the paywall before you price it
For people deciding what to build
Indie developers
You can build almost anything. The hard part is choosing. Start from demand somebody already tried to pay for.
ASO and growth teams
Find the complaint themes a competitor never fixed, then aim your listing and your roadmap straight at them.
Studios and agencies
Screen a whole category in one pass and bring clients a shortlist backed by quotes, not opinions.
Frequently asked
What does Underserved actually do?
It reads the public reviews of apps in a market and tells you where users are being let down. You get complaint themes, an opportunity score per app, the gaps by country, and the quotes that support each finding.
Where does the data come from?
Public reviews on the Apple App Store and Google Play — the same ones any shopper can read before installing. No store login, no console access, and nothing private.
How do I know the AI is not making things up?
Every quote in a report is matched word for word against the review it came from before you see it. If a quote cannot be found in the source text, it is removed, and if too many are invented we throw the report away instead of showing it.
Do you store who wrote the reviews?
No. We keep what was said, never who said it. Reviewer names are not stored, not exported and not shown.
Is this a subscription?
Everything is a one-time purchase and credits never expire. Nothing renews and we keep no card on file for a future charge. A niche scan costs 5 credits and a full report costs 3.
What can I do for free?
Every account starts with 5 credits and no card — a full niche scan, or an opportunity report plus two app pulls. Browsing, filtering, search, charts, cross-store comparison and CSV, Excel or JSON export never cost credits at all.
Stop guessing what to build next.
The people who will pay for your next app are already writing about what is missing. Go and read it.
Start free — 5 credits, no card