Atkinson vs DitherProg
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Atkinson
This app processes photos using the Atkinson dithering algorithm, originally used for black and white displays on old Macintosh computers. It creates small file-sized images with options for square cropping, rounded corners, and white borders, offering a real-time preview of the effect.
- Atkinson dithering algorithm processing
- Square photo output
- Toggleable rounded corners
- White border option
- Real-time preview
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Transform your photos with the iconic Atkinson dithering algorithm — the same technique used on the original Macintosh by Bill Atkinson. Create stunning retro-style images with a single tap. # What is Atkinson Dithering? Atkinson dithering was the algorithm behind the classic 1-bit graphics of early Macintosh computers. It converts photos i nto beautiful two-tone pixel patterns, producing images with a distinctive vintage charm and remarkably small file sizes. # Features - Real-time Atkinson dithering preview through your camera - 7 retro-tech color palettes: Terminal Green, Amber Monitor, Original Macintosh, Game Boy, Apple II Green, White Phospho r, and classic black & white - 5 iconic frames inspired by computing history: MacPaint, Classic Mac window, Terminal, White Frame, and frameless - Adjustable brightness control - Rounded corner option - Square photo output optimized for social media - Lightweight PNG output with tiny file sizes # Color Palettes Go beyond black and white. Choose from color palettes inspired by legendary displays — the green glow of VT100 terminals, the warm amber of IBM monitors, the creamy screen of the original Macintosh, and more. # Retro Frames Wrap your dithered photos in frames inspired by classic software. The MacPaint frame features pixel-perfect tool palettes and menu bars, just like Bill Atkinson's legendary paint program. The Classic Mac frame recreates the iconic window chrome of early Macintosh. # Perfect for - Retro and vintage photo enthusiasts - Pixel art lovers - Social media posts with a unique aesthetic - Anyone who appreciates the beauty of 1-bit graphics
DitherProg
This application allows users to apply nostalgic dithering effects to images. It offers various tone depths and dithering algorithms, including Bayer, Halftone, Spiral, Floyd-Steinberg, and Jarvis, Judice & Ninke. Processed images can be saved in PNG format.
- Nostalgic dithering effects
- Multiple tone depths
- Various dithering algorithms (Bayer, Floyd-Steinberg, etc.)
- Save as PNG
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This is an application for nostalgic dithering. Tone Depth: - [ 0, 255 ] - [ 0, 128, 255 ] - [ 0, 64, 128, 192, 255 ] Dithering Type: - 2x2, Bayer - 4x4, Bayer - 4x4, Halftone - 4x4, Spiral (Type 1) - 4x4, Spiral (Type 2) - Floyd-Steinberg - Jarvis, Judice & Ninke Save format: - PNG
Screenshots
Verdict
The clearest difference is in-app purchases: DitherProg at none against Atkinson's 2. DitherProg also leads on ads (none vs shown). Atkinson's advantage is update cadence (monthly vs every 6 months) and review sentiment (71% vs 50%). On price, rating, ratings volume 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
Both are free to download. Atkinson sells 2 in-app purchases, starting at $0.99 per month. DitherProg asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 3.3 for Atkinson against 3.3 for DitherProg. Both are backed by a comparable volume of ratings — 6 and 4 respectively. Written reviews are what separate them: 71% of Atkinson's written reviews are positive against 50% of DitherProg's.
Atkinson ships an update monthly, DitherProg every 6 months. The most recent releases landed on June 5, 2026 and June 4, 2026 respectively.
| Parameter | Atkinson | DitherProg |
|---|---|---|
| Price | Free | Free |
| Rating | 3.3 (6 ratings) — better | 3.3 (4 ratings) |
| Positive reviews | 71.4% of reviews — better | 50.0% of reviews |
| Number of ratings | 6 — better | 4 |
| Update frequency | Monthly — better | Every 6 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 19 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Tsutomu Koyachi | Itoh Tomoaki |
Customer experience
Atkinson
DitherProg
In-app purchases
Atkinson
- Standard Month$0.991 Month
- Standard Year$9.991 Year
DitherProg
No in-app purchases






