DevGlass vs Negative Scanner
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DevGlass
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DevGlass is a film development reference and processing timer built for black & white film photographers. Whether you're developing your first roll or you're a seasoned darkroom hand, everything you need is at your fingertips — and it works completely offline. DEVELOPMENT DATABASE 308 films, 190 developers, and 11,849 development recipes built in. Filter by format (35mm, 120, sheet), pick your film and ISO, and get the exact development time and dilution. Most combinations include push/pull times. MULTI-STEP PROCESSING TIMER Start a full process with one tap. The timer guides you through every step — pre-soak, developer, stop bath, fixer, hypo clear, wash, and photo-flo. Each step can be enabled, disabled, or adjusted. Sound and haptic alerts mean you never miss a step, even face-down; progress shows on the Lock Screen and Dynamic Island, and the screen stays awake while timing. COLOR PROCESSING — C-41 / E-6 (new) Built-in C-41 and E-6 timer presets with continuous-agitation handling. The Color Process Guide lays out the standard steps, times, and precise temperatures for both processes. AGITATION REMINDERS Standard, continuous, minimal, and custom schemes. DevGlass nudges you with sound and vibration whenever it's time to agitate. COMPENSATION Temperature compensation (based on the Ilford formula), plus reciprocity and rotary compensation — your adjusted development time, calculated automatically. DILUTION CALCULATOR Quickly work out concentrate and water volumes. Common tank presets included (Paterson, Jobo, AP Compact), with custom volumes and any standard dilution ratio. FAVORITES, LOG & STATS Save go-to recipes for quick access. Log every session's film, developer, time, temperature, and roll count, with your own notes. Export your log to CSV for backup, and look back on your darkroom year with charts and a year-in-review. MY CHEMICALS (new) Track each bottle's open date and shelf life, with a reminder before it expires. TANK GUIDE A handy reference for common tanks — capacity, supported formats, and agitation method. MADE FOR THE DARKROOM A vintage-print-inspired interface that's easy on the eyes. Available in 6 languages (English, Simplified Chinese, Traditional Chinese, Japanese, German, French). All data stays on your device — no account, no cloud, no tracking.
Negative Scanner
Digitize film negatives quickly and easily. This tool automatically detects borders, corrects distortion, and converts negatives to positives with accurate color correction. Supports batch scanning and custom image enhancements for film photographers.
- Automatic film border detection and cropping
- Perspective distortion correction
- Automatic negative to positive conversion
- Automatic base color correction
- Batch scanning for entire film rolls
- Custom color grading and image enhancement
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Negative Scanner is a mobile scanning tool designed for film photography users. Simply place your negatives on a light panel or any even light source, and the app will automatically detect the film area, frame the image, correct perspective distortion, and convert negatives into positives with automatic base color correction based on film characteristics and image analysis. You can quickly scan a single frame or enable batch scanning mode to continuously process an entire roll of film. The app attempts to recognize different film formats and film stock types automatically, while saving scan records for easier organization, color grading, and export later. Key Features: * Automatically detects film borders, crops frames, and corrects perspective * Automatically identifies or lets you select film stock types for color mask removal and basic color correction * Supports quick custom color grading, cropping, and image enhancement * Add camera information, film stock details, and custom white borders to exported images * Batch scan entire film rolls with automatic scan history saving * Import images from the photo library for continued editing Perfect for users who want a fast way to digitize 35mm, 120, and other film negatives, while also creating beautifully framed images ready for sharing.
Screenshots
Verdict
The clearest difference is price: Negative Scanner at Free against DevGlass's $7.99. Negative Scanner also leads on update cadence (every 2 days vs monthly). On ads, in-app purchases, device support and iOS requirement 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
Negative Scanner is free to download; DevGlass costs $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.
DevGlass ships an update monthly, Negative Scanner every 2 days. The most recent releases landed on October 1, 2026 and October 2, 2026 respectively.
| Parameter | DevGlass | Negative Scanner |
|---|---|---|
| Price | $7.99 | Free — better |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Monthly | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | 存滨 崔 | 浩宇 李 |
In-app purchases
DevGlass
No in-app purchases
Negative Scanner
No in-app purchases









