Comparison

Gemetrix vs Night Vision

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

Head to head
About

Gemetrix

Control your smartphone camera's exposure, ISO, color temperature, and focus for both short-wave and long-wave UV illuminations. Compare captured images side-by-side or with a slider, and save them with clear labeling.

Highlights
  • UV illumination control (SWUV & LWUV)
  • Adjustable exposure, ISO, color temperature, focus
  • Side-by-side image comparison
  • Image slider comparison
  • Save labeled images
Features
Read full description

This app allows control of your smartphone camera, using the same settings for both short-wave ultra-violet (SWUV) and long-wave ultra-violet (LWUV) illuminations. The controlled settings are for exposure, ISO, color​ temperature and focus. The two images can then be compared either through alternating views or using a slider. Images with SW and LW labeling can be saved to your image gallery.

About

Night Vision

Experience the night with a realistic green filter, transforming your photos and videos with a classic night vision effect. Explore multiple viewing modes to simulate goggles, binoculars, and scopes. Capture and share your nocturnal creations easily.

Highlights
  • Realistic green night vision filter
  • Multiple viewing modes (goggles, binoculars, scopes)
  • Capture and share photos/videos
  • Simple and intuitive interface
  • Enhance visual content with nocturnal look
Features
Read full description

Unlock the mysteries of the night with Night Vision Effect, an app that brings a classic night vision experience to your phone using a realistic green filter. Night Vision Made Easy: View your surroundings in true night vision style, with an authentic green tint. Perfect for enhancing your photos and videos with a distinct nocturnal look. Multiple Viewing Modes: Recreate the experience of using night vision goggles, binoculars, and scopes. Each mode delivers a unique perspective, providing a more immersive and realistic night vision effect. Create and Share: Capture and easily share your night vision photos and videos with friends or across social media platforms. Simple, Intuitive Interface: Designed for ease of use, you can quickly navigate the app and apply night vision effects without any technical knowledge. Night Vision Effect is ideal for anyone fascinated by the night or looking to add a striking, green-filtered style to their visual content. Download now and step into the night vision world! Subscribe for Full Access: $4.99 per week, cancel anytime. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://sites.google.com/view/davrospashyan-policy?v=2

Screenshots

Gemetrix4 screens
Night Vision4 screens

Verdict

The call

The clearest difference is rating: Night Vision at 4.5 against Gemetrix's 2.2. Night Vision also leads on update cadence (every 3 days vs monthly) and review sentiment (75% vs 50%). Gemetrix's advantage is in-app purchases (none vs 2) and iOS requirement (10.3 vs 14.0). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Night Vision sells 2 in-app purchases, starting at $4.99 per 7 days. Gemetrix asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Night Vision holds the better App Store score, 4.5 against 2.2. That said, the two scores are not equally well evidenced: Night Vision has 370 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 50% of Gemetrix's written reviews are positive against 75% of Night Vision's.

UpkeepUpdate frequency

Gemetrix ships an update monthly, Night Vision every 3 days. The most recent releases landed on November 2, 2026 and November 8, 2026 respectively.

Scorecard7 real differences · 3 level
Gemetrix versus Night Vision: the parameters behind the verdict, then further details
ParameterGemetrixNight Vision
PriceFreeFree
Rating2.2 (5 ratings)4.5 (370 ratings) — better
Positive reviews50.0% of reviews75.0% of reviews — better
Number of ratings5370 — better
Update frequencyMonthlyEvery 3 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterSubscription
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS10.3 — better14.0
Further details — not scored
Size18 MB7 MB
Age rating4+4+
DeveloperJohn ChapmanDavros Pashayan

Customer experience

Gemetrix

All ratings5 ratings
Positive20.0%
Neutral20.0%
Negative60.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Night Vision

All ratings237 ratings
Positive89.9%
Neutral4.2%
Negative5.9%
Written reviews4 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

In-app purchases

None

Gemetrix

No in-app purchases

2 purchases

Night Vision

Subscriptions2
  • Night Vision Effect Premium3 Days trial$4.997 Days
  • Night Vision Effect Pro$4.997 Days

Questions

Is Gemetrix free?
Gemetrix is free to download, with no in-app purchases.
Is Night Vision free?
Night Vision is free to download, with in-app purchases available.
Which has better reviews, Gemetrix or Night Vision?
Night Vision is rated higher. Gemetrix averages 2.2 out of 5 from 5 ratings, while Night Vision averages 4.5 from 370 ratings.
Do Gemetrix or Night Vision have ads?
Neither Gemetrix nor Night Vision shows ads.
Which is updated more often, Gemetrix or Night Vision?
Gemetrix ships an update monthly, and Night Vision every 3 days. Most recently, Gemetrix was updated on November 2, 2026 and Night Vision on November 8, 2026.

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