Comparison

NightVision Light vs Sloths Browser

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

Head to head
About

NightVision Light

This utility app provides adjustable illumination for dark environments. It offers a red light mode to preserve night vision and a bulb light mode to prevent color cast in photography. Ideal for stargazing, camera adjustments, or any task requiring light without compromising sight.

Highlights
  • Variable light intensity
  • Red color light mode
  • Bulb light mode
  • Preserves night vision
  • Prevents red foreground in photos
  • Suitable for stargazing
Features
Read full description

The NightVision Light is an illumination app (variable light intensity) that is best suited for operations in the dark. You can light close at hand softly with either red color light or bulb light according to your intentions. Red color light mode protects your night vision. There might be occasions that you need to confirm with a star map or check the settings of your telescope or camera in the dark with a flashlight. However, white color light of the flashlight spoils your dark-adapted eye because the pupil of your eye shrinks by it. In this reason, it is necessary to take a preventive measure against it by using a red color light of low illumination that allows for maintaining your vision in the dark. The NightVision Light app turns the screen to illumination in red color to protect your night vision. Bulb light mode prevents the reddish foreground from "star-scape" photos caused by the red color light. It is very effective to apply the red color light for operations in the dark to avoid affecting your night vision. However, amount of light received by the sensor of your camera is good enough and the red color light may cause a reddish foreground (fogging in red) in the "star-scape" night photography. To avoid this phenomenon, the bulb light model is newly applied. The intensity of the bulb light is variable.

About

Sloths Browser

This web browser filters out blue light to promote better sleep by adjusting screen color temperature. It offers a faster browsing experience with features like private browsing and multiple tabs, all while prioritizing your sleep cycle.

Highlights
  • Blue light filtering for better sleep
  • Automatic color temperature adjustment
  • Darkness Boost for low brightness
  • Private browsing
  • Multiple browser tabs
  • Selectable search engines
Features
Read full description

**Browsing that's easy on your eyes.** Sloths Browser is a fast, uncluttered web browser built around one idea: the web should be comfortable to read, at any hour. **Night Mode that follows the sun** A warm tint slides over everything after dark and lifts at sunrise. It can follow your local sunset and sunrise times, or run on a schedule you set yourself. Adjust the warmth to taste. **Private really means private** Private tabs use separate, in-memory storage. Nothing is written to your history, and cookies are discarded the moment you close the tab. Not hidden — gone. **Secure by default** Type a web address and it's upgraded to HTTPS automatically. A padlock shows when a page is genuinely encrypted, and a warning shows when it isn't. **A start page worth opening** Your favourites and recent sites are one tap away, instead of a blank box. **Downloads that stay put** Touch and hold any link to download it. Files are kept on your device where you can preview, share or delete them. **Route through your own proxy** Point the browser at a proxy server you trust and every page loads through it, private tabs included. Your proxy, your rules. **Made to stay out of the way** Full support for Dark Mode, Dynamic Type and VoiceOver. Works properly on iPad, in landscape, and in Split View. Keyboard shortcuts when you have a keyboard attached. **Remove ads with Sloth Pro** Sloths Browser is free and supported by occasional ads. Sloth Pro is a yearly subscription that removes them, and it restores to your other devices. Already bought the old one-time upgrade? It still counts. Sloth Pro is yours permanently, with nothing to renew and nothing to pay — thank you for backing the app early. https://sites.google.com/view/mobtech-studio/privacy-policy https://sites.google.com/view/mobtech-studio/terms

Screenshots

NightVision Light2 screens
Sloths Browser4 screens

Verdict

The call

The clearest difference is in-app purchases: NightVision Light at none against Sloths Browser's 1. NightVision Light also leads on ads (none vs shown) and review sentiment (67% vs 36%). Sloths Browser's advantage is update cadence (every 5 weeks vs every 38 months). On price, rating 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. Sloths Browser sells 1 one-off in-app purchase. NightVision Light asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.0 for NightVision Light against 4.1 for Sloths Browser. Both are backed by a comparable volume of ratings — 40 and 12 respectively. Written reviews are what separate them: 67% of NightVision Light's written reviews are positive against 36% of Sloths Browser's.

UpkeepUpdate frequency

NightVision Light ships an update every 38 months, Sloths Browser every 5 weeks. The most recent releases landed on September 17, 2026 and September 24, 2026 respectively.

Scorecard7 real differences · 3 level
NightVision Light versus Sloths Browser: the parameters behind the verdict, then further details
ParameterNightVision LightSloths Browser
PriceFreeFree
Rating4.0 (40 ratings)4.1 (12 ratings) — better
Positive reviews66.7% of reviews — better36.4% of reviews
Number of ratings40 — better12
Update frequencyEvery 38 monthsEvery 5 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better17.0
Further details — not scored
Size1 MB16 MB
Age rating4+17+
DeveloperVixen Co.,Ltd.Usman Perwaiz

Customer experience

NightVision Light

All ratings40 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews21 reviews
Positive66.7%
Neutral4.8%
Negative28.6%

Sloths Browser

All ratings12 ratings
Positive66.7%
Neutral16.7%
Negative16.7%
Written reviews11 reviews
Positive36.4%
Neutral9.1%
Negative54.5%

In-app purchases

None

NightVision Light

No in-app purchases

1 purchases

Sloths Browser

One-time1
  • Sloths Browser upgrade$1.99

Questions

Is NightVision Light free?
NightVision Light is free to download, with no in-app purchases.
Is Sloths Browser free?
Sloths Browser is free to download, with in-app purchases available.
Which has better reviews, NightVision Light or Sloths Browser?
Sloths Browser is rated higher. NightVision Light averages 4.0 out of 5 from 40 ratings, while Sloths Browser averages 4.1 from 12 ratings.
Do NightVision Light or Sloths Browser have ads?
Sloths Browser shows ads; NightVision Light does not.
Which is updated more often, NightVision Light or Sloths Browser?
NightVision Light ships an update every 38 months, and Sloths Browser every 5 weeks. Most recently, NightVision Light was updated on September 17, 2026 and Sloths Browser on September 24, 2026.

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