Alerts watch your app — we find your next one
A review alert service tells you what users say about the app you already have. Underserved tells you where an unmet need is big enough to build for. If you are searching for an AppStoreReview.app alternative, first decide which of those two jobs you actually need.
Run your first niche scan free5 free credits, no card.
Alert tools are good at the job they do
Credit where it is due
Be fair to alert tools. They do one job, they do it cheaply, and a ping when a 1-star review lands is genuinely useful when you own the app. We do that too, but it is a feature here, not the product.
One note on their numbers
We do not list AppStoreReview.app prices or features on this page. We only publish competitor facts we have checked ourselves, and we have not checked theirs recently. Read their site for that, then come back and compare the job, not the feature list.
Every 1-star review is an unmet need
Someone downloaded an app, tried to get a job done, and said out loud where it failed them. One alert is one person. A thousand of them, grouped and ranked, is a market.
A niche scan takes one category and one country. It reads reviews from every market of about 25 apps and ranks them by how badly their users are let down. You see the openings, with the users' own words as evidence under each one.
Four things an alert feed cannot give you
Both stores, every country, every language
About 155 App Store storefronts and 28 Google Play languages, merged into one table.
Gaps per country
An app can be loved in the United States and hated in Germany. That split is where the openings are, and a global rating hides it.
Quotes that are checked
Every quote in a report is matched word for word against the source review before we show it. If the model invents a quote, we drop the report rather than print it.
Weak-incumbent signals
Developer replies drying up, versions going stale. This is the difference between a hard market and an open one.
“After first scan it gives you a fake score of 91.3 and gives actionable things to do but its all fake. Once you say no to pay and hit back gives you real harmony score.”
“Collecting data App is bad (as everyone says) because it doesn’t care whether it satisfies you or not— you just need to snap your pic with your name attached and move on.”
“the only way to actually get a rating is by paying either 6.99 a week, 11.99 a month or god knows how much for the year, also the 3 day free trial that is said to be available, is ”
- A transparent scoring system with no fake upfront score; show the real harmony score freely and explain the calculation
- Actionable, specific guidance per metric (exercises, skincare, styling, procedures) instead of just a measurement dump
- A working free trial and a modest one-time unlock; currently the paywall blocks even the basic rating and the trial is broken
Live from our database · Face Harmony by Clavicular by Nathan Kestsee the whole report on the homepageWe store what was said, never who said it. There are no reviewer names in the app, the reports or the export.
An event, or a decision
Neither column is wrong. They answer different questions, and only you know which one you are asking today.
What one alert leaves open
- One review is one person, and one person is not a market
- The history starts the day you sign up
- Usually pointed at the apps you already own
- A global rating hides the country where users are angry
What a ranked category answers
- About 25 apps in one category and country, ranked by how badly their users are let down
- Reviews from every market of each app you add, searchable from day one
- Any public app, including ones you may compete with
- The gap per country, with the users' own words as evidence
| A review alert tool | Underserved | |
|---|---|---|
| Main job | Tell you when a review lands on your app | Show you which market has room for a new app |
| Unit of value | One review | One ranked category, with themes and quotes |
| Whose apps | Usually the ones you own | Any public app, including ones you may compete with |
| Alerts | Yes, that is the product | Yes, as a feature: Slack, Telegram, Discord or email |
| History you keep | What arrives after you sign up | Reviews from every market of each app you add |
| Export | Depends on the tool | CSV, XLSX and JSON, free on every account |
What it costs
| Action | What you get | Credits |
|---|---|---|
| Niche scan | About 25 apps in one category and country, ranked by how badly their users are let down | 5 |
| Opportunity report | One app in depth: complaint themes, where to put the paywall, and quotes checked word for word against the source review | 3 |
| Add or refresh an app | Reviews from every major market, ready to read and export | 1 |
| Monitoring, per app per month | Daily refresh with filtered alerts | 1 |
Browsing, filtering, full-text search, rating charts and CSV, Excel or JSON export stay free on every account. Credits never expire — see pricing.
Credits never expire and there is no monthly reset. Browsing, filtering, search, charts and export stay free. Read how monitoring works here, or if you are also comparing bigger suites, we wrote an Appbot alternative page.
Who should keep their alert tool
- You ship on iOS only
- You own the app you are watching
- A notification is all you want — that is a clean, cheap answer to a real need
Come here when the question changes from "what did someone say today" to "what should I build next".
Frequently asked
Is Underserved a drop-in replacement for a review alert tool?
Partly. We send alerts too — Slack, Telegram, Discord or email, filtered by star rating, keyword or language — but alerts are a feature here, not the product. The product ranks a category by unmet demand so you can decide what to build next. If a notification on the app you already own is all you want, a dedicated alert tool is a clean, cheap answer to a real need.
Why do you not list AppStoreReview.app's prices or features?
We only publish competitor facts we have checked ourselves, and we have not checked theirs recently. Read their site for the current list, then come back and compare the job each tool does rather than the feature list.
Do I get anything to read on day one, or only reviews that arrive later?
With an alert tool you keep what arrives after you sign up. When you add an app here we pull reviews from every market of that app, so there is a table to search, filter and export immediately. It also works on apps you do not own, because the reviews we read are already public on the store page.
What does it cost to try?
Every new account gets 5 free credits, with no card. That is one niche scan, or one opportunity report plus two app pulls. Credits never expire and there is no monthly reset, and browsing, filtering, search, charts and export stay free.
Start with the scan. Then write the code.
Pick a category you know. Run the scan. Read the ranking and the quotes before you build anything. Every new account gets 5 free credits, with no card.
Run your first niche scan free