Check the acquisition promise
Read the store headline, screenshots and description. What problem is the app promising to solve?
Study the storefront ↗Jinan Matrix Information Technology Co., Ltd. · iOS
Explore the ad evidence, study the storefront, and build your next acquisition hypothesis.
01 / Creative research
Read the store headline, screenshots and description. What problem is the app promising to solve?
Study the storefront ↗Explore apps with direct store-link matches. Compare their hooks and formats without assuming the same approach works here.
Browse observed advertisers ↗Store rankings and revenue estimates describe market context. They do not establish ad spend, conversions or ROAS.
Review the market context ↗02 / Storefront & product
Study the product story and store experience behind the acquisition funnel.
03 / Market context
Keep revenue, downloads and store rankings separate from advertising performance.
On ios im able to make a singular app dark mode via "smart invert", but not on macOS
If you need revenue, run ads. Don’t lock almost all the structures and ask for 2.99 when we can just google and get the same information for free. This is a pointless app if you require payment to see a simple stack or queue overview.
$2.99 for bad info. One sample problem had the answer start with “A circle of 30 people in the prompt inspired us to use a circular linked list”. For this particular problem a candidate using a simple array would be just ok, but a linked list, and particularly a circular linked list would not pass on this. Outside of data structures, a single 32-bit int could pass for tracking 30 people, but reality is that all you need is a single byte to track the positions that you do/don’t want in the answer and a count of people considered so far. Perhaps if other info was better I’d give a better rating, but I’m not paying $3 to find out that I’ve been robbed.
A novel data structure learning app, the most significant feature is that you can dynamically debug the data structure in this app, and visually obser...
| Name | Price | Type |
|---|---|---|
| Unlock all data structures | $2.99 | One-time |