# Simple Negative Image vs Memorylens

The clearest difference is rating: Memorylens at 5.0 against Simple Negative Image's 4.5. Memorylens also leads on ads (none vs shown) and update cadence (every 6 days vs every 2 months). Simple Negative Image's advantage is in-app purchases (none vs 1) and ratings volume (115 vs 1). On price there is nothing between them.

Both are free to download. Memorylens sells 1 in-app purchase, starting at $17.99 per year. Simple Negative Image asks for nothing beyond the download.

Memorylens holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Simple Negative Image has 115 ratings behind it against 1, so its average is the more settled of the two.

Simple Negative Image ships an update every 2 months, Memorylens every 6 days. The most recent releases landed on October 12, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Simple Negative Image | Memorylens |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (115 ratings)](https://appshunter.io/ios/app/simple-negative-image/id6444569227/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/memorylens/id6801766993/reviews)** |
| Number of ratings | **115** | 1 |
| Positive reviews | 56.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 6 days** |
| Monetization | **Ad-supported** | Freemium |
| Size | 34 MB | 2 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Ryouhei Azuma](https://appshunter.io/developer/1353297781) | [Joshua George](https://appshunter.io/developer/1700634054) |

## What reviewers say

### Simple Negative Image

[App page](https://appshunter.io/ios/app/simple-negative-image/id6444569227)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Memorylens

[App page](https://appshunter.io/ios/app/memorylens/id6801766993)

This app surfaces photos from your camera roll taken on the current day in previous years. It intelligently filters out screenshots, receipts, and duplicates, prioritizing photos with people. An optional subscription saves memories even if original photos are deleted.

**Highlights:** Daily photo reminders, Intelligent photo filtering, Screenshots and duplicates removed, Prioritizes photos with people, Optional memory saving subscription, On-device processing

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Keep | $17.99 | per year |


## Frequently asked questions

### Is Simple Negative Image free?

Simple Negative Image is free to download, with no in-app purchases.

### Is Memorylens free?

Memorylens is free to download, with in-app purchases available.

### Which has better reviews, Simple Negative Image or Memorylens?

Memorylens is rated higher. Simple Negative Image averages 4.5 out of 5 from 115 ratings, while Memorylens averages 5.0 from 1 ratings.

### Do Simple Negative Image or Memorylens have ads?

Simple Negative Image shows ads; Memorylens does not.

### Which is updated more often, Simple Negative Image or Memorylens?

Simple Negative Image ships an update every 2 months, and Memorylens every 6 days. Most recently, Simple Negative Image was updated on October 12, 2026 and Memorylens on October 3, 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.*