Sub Luna - Safari Dark Mode
By 玮迪 黄
Sub Luna is a native Safari Web Extension for iOS that applies dark mode styles to websites before the first paint.
The App DNA
What makes this app unique?
It removes the white-flash flicker that occurs when loading pages in standard dark mode extensions.
For Safari users on iOS seeking a privacy-focused, high-performance dark mode extension.
What does it look like?
Key features
Injects CSS at document_start to prevent white flashes during page load.
Allows domain-specific theme and brightness rules.
Automatically skips sites with native dark mode support.
How much does it cost?
Sub Luna is currently free with no monetization, which creates a sustainability risk for future maintenance.
Velocity
Dormant developmentopaqueShow more...
Sub Luna - Safari Dark Mode has not received a feature update or patch in 111 days. With only a single version released in the observed window, the development momentum is classified as a zombie state. There is no evidence of active maintenance or ongoing support for the platform.
Who built it?
User Sentiment
What do users think recently?
How are ratings & reviews evolving?
Not enough recent reviews to extract reliable themes yet.
Read the full review analysisCompetition
Competitive landscape for Sub Luna - Safari Dark Mode
How's the Utilities market?
Sub Luna occupies the privacy-focused utility niche for Safari users, relying on a native Swift architecture rather than web-wrapper proxies. The 111-day update gap suggests the product is currently in a maintenance-only state.
The rivals identified
The Analyst's Read
Key takeaways for Sub Luna - Safari Dark Mode
Where is it heading?
The Safari extension market is consolidating around tools that offer consistent, native-feeling performance. Sub Luna's technical foundation is strong, but the lack of a release cadence leaves it exposed to platform changes that will inevitably break the current CSS injection logic.
- The 111-day update gap suggests the developer has shifted focus, increasing the risk of breakage with future iOS releases.
The SWOT
- Zero-flash CSS injection at document_start prevents visual regressions
- Per-site customization rules allow for granular control
Next best moves
Introduce a Pro tier because the current free-only model lacks sustainability → unlock development resources
The counter-intuitive read
The lack of monetization is not a feature…
Read the full takeSince the last report: Sub Luna remains in a dormant state with no feature or pricing changes, maintaining its 111-day update gap. The primary shift is a refinement of the competitive threat model to account for native browser dark mode features.
Bottom line
Sub Luna's zero-flash mechanism delivers a superior visual experience, but the lack of a sustainable revenue model leaves the project vulnerable to abandonment. Introducing a Pro tier would unlock the resources needed to maintain compatibility with future iOS updates.
Unlock 2 critical frictions, 1 market threat and the analyst’s take.
Access the full report for freeFAQ
Is Sub Luna free to use?
Does Sub Luna work with all websites?
How does Sub Luna compare to other dark mode extensions?
Sources
- [1] App Store
Report last updated