Blue Light Filter vs SparqSync
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Blue Light Filter
Reduce eye strain and improve sleep with an adjustable blue light filter. Organize your files, photos, and videos with an integrated file manager. Enjoy a seamless web browsing experience with built-in filtering and bookmarking.
- Adjustable blue light filter
- Eye strain relief
- Improved sleep quality
- Intuitive file manager
- Zip/unzip support
- Integrated web browser
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Blue Light Filter is your all-in-one solution for a comfortable and productive digital experience on iOS. Equip your device with our adjustable blue light filter to alleviate eye strain and improve sleep quality, especially during nighttime browsing and reading. Effortlessly manage and organize your documents, photos, and videos with our intuitive file manager, featuring zip/unzip support. Enjoy a seamless web browsing experience with an integrated blue light filter and easy access to bookmarks and history. Designed with a user-friendly interface, the app ensures easy navigation for users of all ages, and is fully optimized for iOS with Dark Mode compatibility, haptic feedback, and quick actions via 3D Touch. Download Blue Light Filter today and transform your screen time into a safer, more comfortable, and more efficient experience. Privacy Policy: https://riviacorp.com/privacy-filter/ Terms of Services: https://riviacorp.com/terms-filter/ Support: https://riviacorp.com/
SparqSync
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Utilize SparqSync to get the most out of your SparqLinq system. View energy output, analyze historical data, and stay up to date on your systems health. Compatible with SparqVu accounts.
Screenshots
Verdict
The clearest difference is in-app purchases: SparqSync at none against Blue Light Filter's 5. SparqSync also leads on iOS requirement (12.0 vs 17.0). Blue Light Filter's advantage is update cadence (weekly vs every 3 months). 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
Both are free to download. Blue Light Filter sells 5 in-app purchases, starting at $4.99 per 7 days. SparqSync asks for nothing beyond the download.
Blue Light Filter ships an update weekly, SparqSync every 3 months. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.
| Parameter | Blue Light Filter | SparqSync |
|---|---|---|
| Price | Free | Free |
| Rating | 3.3 (138 ratings) — better | — |
| Positive reviews | 2.6% of reviews | — |
| Number of ratings | 138 — better | — |
| Update frequency | Weekly — better | Every 3 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Requires iOS | 17.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 19 MB | 55 MB |
| Age rating | 17+ | 4+ |
| Developer | Rivia Corp s.r.o. | Sparq Systems Inc |
Bugs and requests
Blue Light Filter
Reported bugs
5 issues- App doesn't open
- App keeps crashing
- App doesn't work on Mac
- Blank 'Trial Page' window
- Free cancellation not working
Requested features
4 requests- Automatically turn on at login
- Toggle on/off with shortcut key
- Apply blue light filter to entire phone
- More customization options
SparqSync
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Blue Light Filter
- Weekly3 Days trial$4.997 Days
- 1 month3 Days trial$6.991 Month
- Blue Light Filter - Monthly3 Days trial$7.991 Month
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- 1 year3 Days trial$24.991 Year
- Annually$29.991 Year
SparqSync
No in-app purchases
Questions
Is Blue Light Filter free?
Is SparqSync free?
Do Blue Light Filter or SparqSync have ads?
Which is updated more often, Blue Light Filter or SparqSync?
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