
appfigures
AppTweak
Mobile Action
AppFollow
App Annie
App Radar
42matters
Sensor Tower is a platform for app store optimization and app industry intelligence.
100+ Developer Tools
AIFreeTools.co
A Lot of Tools
App Tools
OptimizeImages Free Bulk Image Optimizer
Picyard
Cervino
564+ free online tools that run entirely in your browser. No signup, no uploads.
Which is more popular?
Based on our record, Sensor Tower seems to be more popular. It has been mentioned 31 times since March 2021.
Website, pricing, platforms and company facts side by side.
|
|
UT
U2Tool
|
|
|---|---|---|
| Website | sensortower.com | u2tool.com |
| Pricing | ||
| Company | Startup from the United States · 100 - 249 employees · 2013 | — |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of Sensor Tower yet.
U2Tool is a collection of 564+ free online tools that run entirely in your browser — no signup, no uploads, no installation. All processing happens locally on your device. Tool families include: Developer tools: JSON formatter and validator, JWT decoder, regex tester, SQL formatter, API tester,...
What each product offers, as listed by its team.

Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.

No analysis of Sensor Tower yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Sensor Tower ASO Tool Review: Keyword Spy, Research & Apple Features
More videos
No U2Tool videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using Sensor Tower and U2Tool. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.

COMPARE / INDEX ASOScan vs.the rest.6comparisons100%public pricing data0cherry-picked tables01AppTweakASOScan vs AppTweak: 6× more keywords per dollar. See the full comparison →02MobileActionASOScan vs MobileAction:...
We have no reviews of U2Tool yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.

The game is free and has no ad-free purchase, so revenue depends on rewarded and full-screen ads. Sensor Tower estimates put its ad revenue at roughly $127 million for January to May 2026, ahead of Candy Crush Saga at $81.1 million. - Source: dev.to / 12 days ago
The hype around AI shows no signs of slowing down and continues to attract attention from publishers, developers, anyone creating mobile applications for their business, and those with a keen interest. This fact is proved by the latest... - Source: dev.to / about 1 year ago
I was optimistically hoping some of the MV3 changes would result in Chrome webstore policy enforcement being standardized, but that hasn't happened. Sensor Tower (https://sensortower.com/) makes a lot of popular extensions, like... - Source: Hacker News / about 2 years ago
Tracking U2Tool since Mar 2026.
When comparing Sensor Tower and U2Tool, you can also consider the following products.

Cross-platform app store analytics for all of your mobile apps.
Compare appfigures to Sensor Tower or U2Tool:
Dev tools that will increase your efficiency & productivity
Compare 100+ Developer Tools to Sensor Tower or U2Tool:

The most comprehensive ASO & Apple Search Ads platform to optimize your apps' organic and paid performance in the app stores
Compare AppTweak to Sensor Tower or U2Tool:

Browse free AI tools, templates, alternatives, comparisons, and practical guides without signup friction.
Compare AIFreeTools.co to Sensor Tower or U2Tool:

Mobile Data Intelligence & Actionable Insights.
Compare Mobile Action to Sensor Tower or U2Tool:

380+ free online tools — no sign-up, in your browser.
Compare A Lot of Tools to Sensor Tower or U2Tool: