# NightVision Light vs SeismicityAlert

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.

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.

## The numbers

| Metric | NightVision Light | SeismicityAlert |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (41 ratings)](https://appshunter.io/ios/app/nightvision-light/id1081761997/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/seismicityalert/id6758901471/reviews)** |
| Number of ratings | **41** | 3 |
| Positive reviews | 73.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 38 months | **Fortnightly** |
| Monetization | Free | Free |
| Size | 1 MB | 58 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Vixen Co.,Ltd.](https://appshunter.io/developer/536188843) | [SensorEra Inc](https://appshunter.io/developer/1873603743) |

## What reviewers say

### NightVision Light

[App page](https://appshunter.io/ios/app/nightvision-light/id1081761997)

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:** macOS Compatibility

**In-app purchases:** none


### SeismicityAlert

[App page](https://appshunter.io/ios/app/seismicityalert/id6758901471)

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.

**Highlights:** Seismic event summaries, Event magnitude, time, and location overview, Map-based visualization, Secure login for authorized users

**In-app purchases:** none


## Frequently asked questions

### Is NightVision Light free?

NightVision Light is free to download, with no in-app purchases.

### Is SeismicityAlert free?

SeismicityAlert is free to download, with no in-app purchases.

### Which has better reviews, NightVision Light or SeismicityAlert?

SeismicityAlert is rated higher. NightVision Light averages 4.0 out of 5 from 41 ratings, while SeismicityAlert averages 5.0 from 3 ratings.

### Do NightVision Light or SeismicityAlert have ads?

Neither NightVision Light nor SeismicityAlert shows ads.

### Which is updated more often, NightVision Light or SeismicityAlert?

NightVision Light ships an update every 38 months, and SeismicityAlert fortnightly. Most recently, NightVision Light was updated on October 22, 2026 and SeismicityAlert on October 9, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*