Every ASO tool falls into one of four jobs: keyword research, competitor and market intelligence, screenshot / creative testing, and page critique. Pick one tool per job. Stacking three keyword tools is a waste.

You need volume estimates, difficulty, and chance scores for terms in your language. The mainstream picks in 2026 are Sensor Tower, Appfigures, and AppTweak. They all pull from similar sources; the differences are UX and price.

For solo devs on a budget, Appfigures has the cleanest keyword tool at the lowest tier. For agencies handling 10+ apps, AppTweak's data depth wins.

Free alternative: App Store Connect's own Search Ads keyword suggestions. Underrated. It uses real Apple data, not scraped estimates.

This is where Sensor Tower and data.ai (formerly App Annie) dominate. If you need download and revenue estimates for competitors, you are paying enterprise prices.

Skip this category unless you are pitching investors or running paid UA at scale. Solo devs do not need a $1,500/month tool to know their category leader is winning.

Splitmetrics and Storemaven run pre-launch A/B tests by driving traffic to a fake store page. Powerful, expensive, and only worth it if you have a paid UA budget to feed them.

Product Page Optimization inside App Store Connect is free, uses real store traffic, and is enough for 95% of teams. Test icon and first screenshot variants there before spending on external tools.

The gap in the ASO market: none of the big tools tell you if your page is any good. They give you numbers, not judgment. A junior dev looking at a Sensor Tower dashboard still cannot answer "is my first screenshot working?"

Omu Critics is free, takes a live App Store URL, and returns an honest critic's read on icon, screenshots, copy hierarchy, visual consistency, and trust signals in about a minute. Use it before you spend on any paid tool — half the time it finds the problem for free.

Appfigures (keywords) + App Store Connect PPO (creative tests) + Omu Critics (page critique) = under $50/month total, covers everything a pre-Series-A app actually needs.

所有 ASO 工具都落在四個任務裡：關鍵字研究、競品與市場情報、截圖／素材測試、頁面診斷。每個任務挑一套工具就好，同時買三套關鍵字工具是浪費錢。

你需要你所在語言的搜尋量估計、難度與機會分數。2026 年主流選擇是 Sensor Tower、Appfigures、AppTweak。三家的資料來源接近，差異在 UX 和價格。

獨立開發者預算有限的話，Appfigures 入門方案的關鍵字工具最乾淨。同時操作 10 個以上 App 的代理商，AppTweak 資料深度最強。

免費替代方案：App Store Connect 內建的 Search Ads 關鍵字建議。被低估了。它用的是 Apple 的真實資料，不是爬蟲估算。

這塊 Sensor Tower 和 data.ai（前身 App Annie）壟斷。如果你需要競品的下載和營收估計，準備好付企業級的價格。

除非你在對投資人簡報或有大規模付費 UA，否則跳過這個類別。獨立開發者不需要一個月 1,500 美金的工具，來確認你類別的第一名正在贏。

Splitmetrics 和 Storemaven 用假商店頁面在上架前跑 A/B 測試。強大、昂貴，只有當你有付費 UA 預算可以餵它們時才划算。

App Store Connect 內建的 Product Page Optimization 是免費的、用真實商店流量，對 95% 的團隊已經夠用。先在這裡測圖示和第一張截圖的變體，再花錢用外部工具。

這是 ASO 市場的缺口：大工具沒有一個會告訴你頁面到底做得好不好。它們給你數字，不給你判斷。一個新手開發者看著 Sensor Tower 的儀表板，還是回答不出「我的第一張截圖有效嗎？」

Omu Critics 是免費的，貼上 App Store 連結，大約一分鐘就會給你一份誠實的評論家診斷，涵蓋圖示、截圖、文案層次、視覺一致性與信任訊號。在花錢買任何付費工具之前先跑一次 — 有一半的時候它會免費幫你找到問題。

Appfigures（關鍵字）+ App Store Connect PPO（素材測試）+ Omu Critics（頁面診斷）= 一個月不到 50 美金，涵蓋一個 Pre-Series-A 階段 App 真正需要的一切。