NightVision Light vs SeismicityAlert
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Variable light intensity
- Red color light mode
- Bulb light mode
- Preserves night vision
- Prevents red foreground in photos
- Suitable for stargazing
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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.
SeismicityAlert
This application provides enterprise users with summarized seismic event notifications from industrial monitoring projects. It offers a map-based visualization of earthquake events, including magnitude, time, and location details. Access is secured through a login for authorized business users.
- Seismic event summaries
- Event magnitude, time, and location overview
- Map-based visualization
- Secure login for authorized users
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SeismicityAlert is a mobile application designed for enterprise users to review seismic event reports. The app provides access to summarized earthquake event notifications generated within industrial monitoring projects, including induced seismicity and subsurface operations. Features: • Seismic event summaries • Event magnitude, time, and location overview • Map-based visualization • Secure login for authorized users SeismicityAlert is intended for licensed business users.
Screenshots
Verdict
The clearest difference is rating: SeismicityAlert at 5.0 against NightVision Light's 4.0. SeismicityAlert also leads on update cadence (fortnightly vs every 38 months). NightVision Light's advantage is ratings volume (41 vs 3) and iOS requirement (12.0 vs 15.6). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.
SeismicityAlert holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: NightVision Light has 41 ratings behind it against 3, so its average is the more settled of the two.
NightVision Light ships an update every 38 months, SeismicityAlert fortnightly. The most recent releases landed on October 22, 2026 and October 9, 2026 respectively.
| Parameter | NightVision Light | SeismicityAlert |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (41 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 73.1% of reviews | — |
| Number of ratings | 41 — better | 3 |
| Update frequency | Every 38 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 1 MB | 58 MB |
| Age rating | 4+ | 4+ |
| Developer | Vixen Co.,Ltd. | SensorEra Inc |
Customer experience
NightVision Light
SeismicityAlert
In-app purchases
NightVision Light
No in-app purchases
SeismicityAlert
No in-app purchases
Questions
Is NightVision Light free?
Is SeismicityAlert free?
Which has better reviews, NightVision Light or SeismicityAlert?
Do NightVision Light or SeismicityAlert have ads?
Which is updated more often, NightVision Light or SeismicityAlert?
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