Comparison

Storm Sniffer vs uatu

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Storm Sniffer

Capture and inspect HTTP/HTTPS traffic directly on your iOS device. Debug network issues, rewrite requests and responses in real-time, and replay HTTP requests. Offers advanced scripting capabilities for enhanced scalability.

Highlights
  • Packet capture via local VPN
  • HTTP/HTTPS request/response inspection
  • Real-time request/response rewriting
  • HTTP request replay with cron support
  • JavaScript scripting for scalability
Features
Read full description

Storm Sniffer lets you capture and inspect HTTP / HTTPS requests &responses on your iOS device. It's easy to debug your app’s networking issues without a computer. * Features Packet capture: capture http / HTTPS traffic from iOS devices using local VPN. View http / HTTPS requests and responses in text form, and support HTML, JS, CSS formatting preview; Rewrite: modify http / HTTPS requests and responses in real time. Including URL redirection, custom header, local / remote file mock, etc; Replay: Perform arbitrary HTTP requests with cron support; Scripts: Use local/remote Javascript for more scalability. * How it works Storm Sniffer creates a local VPN on your device, then forwarding all traffic to a Local Man-in-The-Middle Server. As long as the VPN is active, Storm Sniffer can capture all HTTP / HTTPS traffic over Wi-Fi or Cellular Data. * About the sensitive data Storm Sniffer's Root Certificate is a self-signed certificate that is generated in your device. All HTTP / HTTPS requests & responses are captured and stored on your devices WITHOUT ANY REMOTE SERVERS involved. * About Subscription After subscription, you can unlock all advanced functions. Currently, there are three kinds of auto-renewable subscription: Annual $17.99、Quarterly $3.99、 Monthly $1.99 * Terms of Use https://sniffer.x-storm.com/terms/ * Privacy Policy https://sniffer.x-storm.com/privacy/

About

uatu

This browser extension automatically syncs your open tabs across different browsers and devices to the cloud. It allows you to seamlessly continue reading content from your mobile device to your desktop. All data is stored securely using Firebase and can be encrypted with a passphrase.

Highlights
  • Automatic tab synchronization
  • Cross-browser compatibility
  • Cross-platform support
  • Cloud storage via Firebase
  • Optional data encryption
  • Session tracking
Features
Read full description

Uatu is a cross-browser extension that automatically synchronizes your open tabs to the cloud. You start reading something on a mobile Safari and want to continue reading it on Google Chrome on your desktop? Uatu helps you cases where you want to keep track of all your session across all browsers and platforms. Uatu uses Google's Firebase to keep data and does not transmit it to any other service. You can encrypt all browser history by entering a passphrase.

Screenshots

Storm Sniffer4 screens
uatu3 screens

Verdict

The call

The clearest difference is review sentiment: Storm Sniffer at 76% against uatu's 0%. Storm Sniffer also leads on rating (3.9 vs 1.0) and ratings volume (120 vs 1). uatu's advantage is in-app purchases (none vs 7). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Storm Sniffer sells 7 in-app purchases, starting at $1.99 per month. uatu asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Storm Sniffer holds the better App Store score, 3.9 against 1.0. That said, the two scores are not equally well evidenced: Storm Sniffer has 120 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 76% of Storm Sniffer's written reviews are positive against 0% of uatu's.

UpkeepUpdate frequency

Storm Sniffer ships an update monthly, uatu every 3 months. The most recent releases landed on October 30, 2026 and October 23, 2026 respectively.

Scorecard8 real differences · 3 level
Storm Sniffer versus uatu: the parameters behind the verdict, then further details
ParameterStorm Snifferuatu
PriceFreeFree
Rating3.9 (120 ratings) — better1.0 (1 ratings)
Positive reviews76.4% of reviews — better0.0% of reviews
Number of ratings120 — better1
Update frequencyMonthly — betterEvery 3 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscriptionFree — better
Best chart rank#20 — better—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS10.0 — better15.0
Further details — not scored
Size47 MB15 MB
Age rating4+4+
DeveloperHunan Storm Technology Co.,LtdGabor Albitz

Customer experience

Storm Sniffer

All ratings121 ratings
Positive68.6%
Neutral5.8%
Negative25.6%
Written reviews148 reviews
Positive76.4%
Neutral4.1%
Negative19.6%

uatu

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Bugs and requests

Storm Sniffer

Reported bugs

3 issues
  • Frequent app crashes
  • Subscription/account issues
  • Incompatibility with certain devices/OS versions

Requested features

4 requests
  • Add support for web server monitoring
  • Integrate VPN functionality
  • Improve HTTPS traffic capture
  • Provide more customization options

uatu

Not enough reviews yet to summarise bugs or requests.

In-app purchases

7 purchases

Storm Sniffer

Subscriptions3
  • Monthly Auto-renew VIP$1.991 Month
  • Quarter Auto-renew VIP$3.993 Months
  • Annual Auto-renew VIP$12.491 Year
One-time4
  • Packet Capture - LiftTime$2.99
  • Full Unlock$14.99
  • Full Unlock$22.99
Show 1 more
  • Full Unlock$24.99
None

uatu

No in-app purchases

Questions

Is Storm Sniffer free?
Storm Sniffer is free to download, with in-app purchases available.
Is uatu free?
uatu is free to download, with no in-app purchases.
Which has better reviews, Storm Sniffer or uatu?
Storm Sniffer is rated higher. Storm Sniffer averages 3.9 out of 5 from 120 ratings, while uatu averages 1.0 from 1 ratings.
Do Storm Sniffer or uatu have ads?
Neither Storm Sniffer nor uatu shows ads.
Which is updated more often, Storm Sniffer or uatu?
Storm Sniffer ships an update monthly, and uatu every 3 months. Most recently, Storm Sniffer was updated on October 30, 2026 and uatu on October 23, 2026.

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