Tampermonkey

Tampermonkey

By Jan Biniok

Tampermonkey is a browser extension for iOS that allows users to run custom JavaScript scripts to modify web page behavior.

The App DNA

What makes this app unique?

The app removes the friction of repetitive manual web page adjustments by enabling persistent, automated script execution across browsing sessions.

For Web developers and power users who want to customize browser behavior through custom JavaScript scripts.

Key features

Userscript Executionedge

Runs custom JavaScript programs to modify web page behavior and appearance

GM_xmlhttpRequest Supportedge

Enables cross-origin network requests for scripts, including ArrayBuffer and UInt8Array data types

How much does it cost?

paidOne-time purchase at $2.99

The $2.99 one-time purchase model provides full access without recurring fees, which users cite as a primary benefit over subscription-based rivals.

Velocity

Dormant developmentperformanceUX improvementsShow more...

Development has ceased, with no new feature builds or updates released in over a year. The app remains in a zombie state, as the last update was recorded 385 days ago. There is no evidence of ongoing maintenance or active development cycles.

See all version history

Who built it?

Jan Biniok

2 apps tracked · Productivity

Tampermonkey ClassicTampermonkey Classic
Explore the full publisher profile

User Sentiment

What do users think recently?

Review voice lately leans mixed. Users appreciate cross-platform userscript synchronization allows seamless transition between desktop and mobile browsing environments for power users and mobile userscript management provides granular control over website behavior and content filtering on safari, but report interface flickering and dashboard loading failures render the app unusable for many users post-update.

How are ratings & reviews evolving?

App Store
3.15 · 53

What users say, by theme

What Users Love
  • Cross-platform userscript synchronization allows seamless transition between desktop and mobile browsing environments for power users
  • Mobile userscript management provides granular control over website behavior and content filtering on Safari
  • One-time purchase model provides long-term value without the recurring friction of monthly subscription fees
What Frustrates Users
  • Interface flickering and dashboard loading failures render the app unusable for many users post-update
+ 2 more themes
What Users Want 2 requests inside

60 of 60 recent reviews analyzed · high confidence · Mixed overall

Read the full review analysis

Unlock 2 more frustration themes and 2 user requests, each backed by review evidence.

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Competition

Competitive landscape for Tampermonkey

How's the Productivity market?

Tampermonkey holds the #16 Paid position in the US Productivity category, though its rank has fluctuated recently. The $2.99 price point remains a competitive advantage against subscription-heavy rivals, provided the app maintains its core utility.

Read the market outlook

The rivals identified

Userscripts
Userscriptsactive nemesis

By Justin Wasack

This is the most direct functional equivalent to Tampermonkey, focusing specifically on userscript management within the Apple ecosystem.

  • Native macOS integration provides a more seamless experience for desktop users compared to this app's extension-only approach.
  • Focuses exclusively on userscript execution, avoiding the feature bloat often found in broader productivity-category extensions.
  • Maintains a dedicated developer-tools focus that appeals to power users who require granular script control.
Tampermonkey vs Userscripts

Unlock the head-to-head verdict: where this rival wins, and where it loses.

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The Analyst's Read

Key takeaways for Tampermonkey

Where is it heading?

The market for browser-based script management is consolidating as native browser engines integrate these capabilities directly. Tampermonkey's current maintenance-mode cadence leaves it exposed to these native alternatives, and the recent stability regressions accelerate the risk of user migration.

  • Frequent reports of database wipes post-update lead to user frustration, which directly threatens the app's long-term retention metrics.
  • Interface flickering in the latest release prevents script management, causing a decline in active feature usage among power users.

The SWOT

Core Strengths
  • Cross-platform script synchronization enables persistent workflows
  • One-time purchase model reduces long-term cost friction
Critical Frictions 2 weaknesses inside
Growth Levers
  • iCloud storage integration would ensure script persistence
  • Granular profile management would allow context-specific script activation
Market Threats 2 threats identified

Next best moves

1 Invest · 1 Pivot

Ship database migration fix because script loss is the #1 churn driver → restore user trust

+ 1 more prioritized move

The counter-intuitive read

The app's stability issues are a greater threat than native browser competition…

Read the full take

Feature gaps

Native browser-level script execution (available in Orion Browser but absent here) +1

Since the last report: The app has transitioned from a state of minor UI instability to critical data loss, evidenced by a drop in category rank from #5 to #16 and a surge in negative sentiment regarding database wipes.

Bottom line

Restoring dashboard stability is the critical path to retaining the power-user base, as the current data-loss issues negate the app's primary utility. Resolving these regressions will unlock the capacity to build cloud-based backups that defend against native browser-level script integration.

Unlock 2 critical frictions, 2 market threats, 1 more prioritized move and the analyst’s take.

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FAQ

Is Tampermonkey worth paying for if I am a casual user?
The app is designed for power users and developers who need to customize web pages. Casual users may find the script management interface complex, though the one-time purchase model is often preferred over subscription-based alternatives.
How does Tampermonkey compare to native script support in browsers like Orion?
Tampermonkey is a browser extension that works across multiple browsers, whereas native browser support like that in Orion is integrated into the browser engine. Native support often provides better performance, but Tampermonkey offers a larger library of community scripts.
Does Tampermonkey have any known issues with script storage?
Yes, some users report that scripts can disappear or the database may be wiped following app updates. Developers are aware of storage implementation issues, and users are encouraged to back up their scripts manually.
What are some alternatives to Tampermonkey for script management?
Users looking for alternatives can consider native browser solutions like Orion Browser, or specialized extensions that focus on specific tasks like ad blocking or content filtering, depending on their specific needs.

Sources

  1. [1] App Store, source

Report last updated

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with automated quality gates, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by Tampermonkey, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

What's new

The app has transitioned from a state of minor UI instability to critical data loss, evidenced by a drop in category rank from #5 to #16 and a surge in negative sentiment regarding database wipes.

declined

Escalation of Data Loss Complaints

declined

Category Rank Regression

added

New Feature Gap Identified

added

Strategic SWOT Updates

Cite this report

Marlvel.ai. “Tampermonkey Intelligence Report.” Updated Jul 30, 2026. https://marlvel.ai/apps/net-tampermonkey-safariwebext

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