Comparison

Simple Negative Image vs Stereozoom Lite

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

Head to head
About

Simple Negative Image

Easily invert image colors to create unique artistic effects. This tool allows for the inversion of negatives and positives, transforming ordinary photos into tasteful art-like creations. Perfect for users seeking straightforward image processing.

Highlights
  • Invert image colors
  • Create unique images
  • Generate art-like visuals
  • Process images easily
  • Invert negatives and positives
Features
Read full description

A simple function application that only inverts the color of the image By inverting colors and inverting negatives and positives, you can create unique images and tasteful art-like images. For those who want to process images easily

About

Stereozoom Lite

Read full description

Stereozoom Lite lets you: • Open side-by-side (parallel or cross-view) and Spatial photos from Photos, Files, the share sheet, or the clipboard • View any compatible SBS 3D photo in SBS Parallel, SBS Cross, Grayscale Anaglyph, and Dubois Anaglyph mode • Zoom and pan with two fingers • Use automatic alignment, or align by hand with a one-finger swipe • Swap sides • Rotate 180° • Flip the image horizontally • Use Aspect Ratio and Fit & Align controls • Realign misaligned images • Apply image effects and hue/saturation/brightness adjustments After you adjust a photo, you can save it as a side-by-side JPEG or PNG, a Spatial photo, a grayscale anaglyph, a Dubois anaglyph, or an animated wiggle GIF. Your alignment, effects and color adjustments are baked into the saved file, and you can crop it to the area you've zoomed in on. The in-app purchase from 1.01 has been removed; all features are now free!

Screenshots

Simple Negative Image3 screens
Stereozoom Lite4 screens

Verdict

The call

The clearest difference is in-app purchases: Simple Negative Image at none against Stereozoom Lite's 1. Simple Negative Image also leads on iOS requirement (15.6 vs 18.6). Stereozoom Lite's advantage is ads (none vs shown) and update cadence (weekly vs every 2 months). On price 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. Stereozoom Lite sells 1 one-off in-app purchase. Simple Negative Image asks for nothing beyond the download.

UpkeepUpdate frequency

Simple Negative Image ships an update every 2 months, Stereozoom Lite weekly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 6 level
Simple Negative Image versus Stereozoom Lite: the parameters behind the verdict, then further details
ParameterSimple Negative ImageStereozoom Lite
PriceFreeFree
Rating4.5 (122 ratings) — better—
Positive reviews55.6% of reviews—
Number of ratings122 — better—
Update frequencyEvery 2 monthsWeekly — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better18.6
Further details — not scored
Size34 MB3 MB
Age rating4+4+
DeveloperRyouhei AzumaTrevor Alyn

In-app purchases

None

Simple Negative Image

No in-app purchases

1 purchases

Stereozoom Lite

One-time1
  • Unlock Saving$0.99

Questions

Is Simple Negative Image free?
Simple Negative Image is free to download, with no in-app purchases.
Is Stereozoom Lite free?
Stereozoom Lite is free to download, with in-app purchases available.
Do Simple Negative Image or Stereozoom Lite have ads?
Simple Negative Image shows ads; Stereozoom Lite does not.
Which is updated more often, Simple Negative Image or Stereozoom Lite?
Simple Negative Image ships an update every 2 months, and Stereozoom Lite weekly. Most recently, Simple Negative Image was updated on November 3, 2026 and Stereozoom Lite on October 31, 2026.

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