Report updated May 26, 2026
Tampermonkey
For web developers and power users who require custom automation and interface modifications on browser platforms.
Tampermonkey is an established productivity app that is a paid app. With a 3.2/5 rating from 53 reviews, it shows polarized user reception. Users particularly appreciate cross-browser userscript management provides a functional productivity tool for power users, though interface flickering and management panel instability render the app unusable on mobile devices remains a common concern.
What is Tampermonkey?
Tampermonkey is a browser extension for managing and executing custom userscripts on mobile and desktop platforms.
Users hire the app to modify web page behavior and automate browser tasks without the recurring costs of subscription-based tools.
Current Momentum
v5.4 · 10mo ago
Zombie- Added ArrayBuffer support for network requests
- Introduced $DATETIME$ variable for script templates
- Reworked storage implementation and sandbox console
Active Nemesis
Userscripts
By Justin Wasack
Other Rivals
7-Day Rank Pulse 🇺🇸
ProductivityRating Pulse 🇺🇸
Recent User Mood
What makes this app unique?
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What Are The Key Features?
Runs custom JavaScript programs to modify web page behavior and appearance
Enables cross-origin network requests for userscripts to fetch external data
Provides a dashboard to create, edit, and toggle individual scripts
How much does it cost?
- One-time purchase at $2.99
Paid model anchored at $2.99, targeting users willing to pay for browser-level utility without subscription overhead.
Who Built It?
Empowering power users to customize and automate their mobile browsing experience through advanced userscript management.
Portfolio
2
Apps
What other apps does Jan Biniok make?
Explore the full Jan Biniok report
Portfolio breakdown, audience, momentum, and every app published by Jan Biniok.
What do users think recently?
Medium confidence · 33 reviews analyzed
How did the latest release land?
What is the recent mood?
Recent user voice shows a mixed sentiment. Users appreciate cross-browser userscript management provides a functional productivity tool for power users, but report interface flickering and management panel instability render the app unusable on mobile devices.
Limited review volume (33 reviews). Sentiment analysis will deepen as more data lands.
How have ratings & review volume moved?
Rating, review sentiment, and total reviews over time, with release markers showing the post-launch impact.
Vertical markers = app releases. Hover any release for the post-release impact delta.
View the full user-sentiment analysis
Mood gauge, ratings & review-volume history, every praise / complaint / request, and sentiment over time.
What is the competitive landscape for Tampermonkey?
How's The Productivity Market?
How does it evolve in the Productivity market?
Tampermonkey holds a #5 Paid position in the US Productivity category, yet the 3.15 rating indicates significant friction relative to its category-leading discovery.
Rank progression
133 active rankings tracked — 30-day window
Which niche is Tampermonkey in?
Explore the full Coding Browsers niche
Every app in this space — 11 tracked, the niche's live rankings, and Marlvel's editorial take on the job-to-be-done.
The rivals identified
Nemeses(1)
This is the most direct functional equivalent to Tampermonkey, focusing specifically on userscript management within the Apple ecosystem.
Differentiators
- Native macOS integration provides a more seamless experience for desktop users compared to the target'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.
Head to head
The target app must leverage its cross-platform ubiquity to defend against this native-first competitor, which offers a superior desktop experience.
Contenders(1)
Orion integrates userscript support directly into the browser engine, effectively bypassing the need for a standalone extension.
Differentiators
- Integrates userscript support natively into the browser core, eliminating the performance overhead of external extensions.
- Aggressive release cadence of 16 updates in six months signals rapid feature iteration and responsiveness to user feedback.
Same space(3)
A specialized utility that modifies web page behavior, occupying the same 'web enhancement' niche as userscripts.
Differentiators
- Provides a single-purpose, highly optimized solution for video playback issues rather than a general-purpose script manager.
- Demonstrates the value of 'micro-utility' apps that solve specific user pain points better than complex, multi-functional tools.
Competes for the same Safari extension slot, focusing on performance-oriented web page modification.
Differentiators
- Focuses on high-performance content filtering that minimizes impact on page load times compared to script-heavy extensions.
- Offers a highly polished, user-friendly interface that prioritizes ease of use over technical script management.
While primarily an ad blocker, it shares the same Safari extension ecosystem and competes for the same browser-enhancement real estate.
Differentiators
- Provides comprehensive privacy and tracking protection that goes beyond simple script execution capabilities.
- Massive user base and long-standing market presence create a high barrier to entry for general browser utility tools.
New entrants(1)
While not a direct userscript manager, its ability to run JavaScript on iOS makes it a powerful alternative for power users.
Differentiators
- Enables deep system automation and widget creation using JavaScript, expanding the scope of what users can achieve.
- Provides a robust development environment that bridges the gap between simple web scripts and full-blown iOS automation.
Compare Tampermonkey against every rival
All rivals in one side-by-side table — identity, store metrics, ratings & sentiment, and strategic intel — plus a head-to-head page for each.
The outtake for Tampermonkey
Strengths to defend, gaps to attack
Core Strengths
- Cross-platform script library synchronization
- One-time purchase model avoids subscription fatigue
Critical Frictions
- Interface flickering on mobile devices
- Frequent database wipe errors
- Lack of clear mobile setup documentation
Growth Levers
- Education of mobile-web power users via better setup guides
- Expansion into deeper system-level automation
Market Threats
- Native browser-engine script support in competing browsers
- Instability-driven migration to native macOS alternatives
What are the next best moves?
Rebuild mobile management UI because flickering is the top-cited churn driver → recover 3.15 rating baseline
Interface flickering and panel instability are the primary drivers of negative sentiment in reviews.
Trade-off: Push the new script-template variable feature to the next cycle — stability is the current retention bottleneck.
Audit database persistence logic because users report frequent script loss → reduce negative review volume
Database errors are the second most frequent complaint, directly disrupting the core utility of the extension.
Trade-off: Pause the multi-language support expansion — existing users are churning due to data loss.
A counter-intuitive read
The app's #5 rank is a liability: maintenance-mode at the top of the chart leaves it more vulnerable to a single live-ops rival than a lower-ranked app climbing the chart.
Feature Gaps vs Competitors
- Native macOS application architecture (available in Userscripts but missing here)
- Native browser-engine script integration (available in Orion Browser but missing here)
Key Takeaways
- Prioritize mobile stability to prevent user migration to native alternatives.
- Leverage the one-time purchase model as a primary marketing differentiator against subscription-heavy competitors.
Tampermonkey maintains a strong market position through cross-platform utility, but mobile-web instability threatens to erode its user base, so the PM must prioritize stability over feature expansion to defend the paid-tier value proposition.
Where Is It Heading?
Mixed Signals
The browser-enhancement market is consolidating around native-first solutions that bypass extension-level overhead. Tampermonkey's reliance on browser-extension architecture leaves it exposed to performance-oriented rivals, so the long-term viability depends on resolving mobile-web stability to retain power users.
Interface flickering and database errors in the latest release disrupt core utility, which compounds the rating drag already visible on mobile platforms.
Recent updates focused on storage and sandbox implementation, indicating a shift toward technical maintenance rather than new user-facing feature expansion.