Color Curves vs (d)effect
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Color Curves
Adjust photo colors with powerful RGB curves. This tool allows for precise control over tone and light, offering both combined and individual red, green, and blue channel adjustments. Edits are non-destructive and can be applied directly through the Photos extension.
- RGB curves editing
- Separate R, G, B channels
- Photos extension integration
- Non-destructive edits
- Full resolution support
- Minimalist interface
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Edit colors with RGB curves either together or Red, Green and Blue separately. Curves is one of the most powerful tools when editing photos. It lets you dynamically change tone and light in images as simple as possible. Key Goals · Fully usable through Photos extension · Non-destructive edits and update original image in app · Full resolution support · As simple and minimalistic as possible If you have any questions or run into any problems: colorcurves@jhnd.me
(d)effect
This camera app applies unique, real-time visual effects directly to your photos and videos as you capture them. It offers a variety of artistic filters, allowing for live previews and immediate saving without any post-processing steps. All processing is done on-device, ensuring your content remains private.
- Live filter rendering on viewfinder
- Real-time photo and video capture
- Stackable and adjustable filters
- On-device processing for privacy
- Variety of unique artistic filters
- Random effect generation
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(d)effect is a camera that shows you the effect before you take the shot. Every filter renders live on the viewfinder at full frame rate — no preview, no "apply" step, no waiting. What you frame is what gets saved. THE FILTERS • Riso Print — RGB plate misregistration and grain, like a badly aligned risograph • Dither — 4×4 Bayer ordered dithering, the look of a 1-bit screen • ASCII — the frame rebuilt from coloured glyphs on black • False Color — channel crushing and hue cycling • Halation — the bloom that film gets around highlights • Posterize — hard tonal banding • Exclusion — a solid hue blended straight through the image • Low Res — chunky pixellation that scales with the shot • Slow Shutter — a real exposure change on the camera, so the motion blur is genuine rather than faked Stack them. Adjust contrast, brightness and saturation on anything. Hit Random when you want the machine to decide. PHOTO AND VIDEO Shoot stills or record video with the same effects, with audio, in 4:5. What the viewfinder showed is what lands in your library — filters that are sized in pixels scale with the image, so the saved file matches the preview. YOUR SHOTS STAY YOURS Everything is processed on your iPhone using Metal and Core Image. Nothing is uploaded, stored on a server, or looked at by anyone. There is no cloud gallery and no server-side processing — captures go straight to your own Photos library, into a "(d)effect" album the in-app gallery reads back. We hold one piece of personal data: the email address attached to your sign-in. You can delete your account, and it, from inside the app. — (d)effect is free while in active development — every filter unlocked, no ads, no subscription. If something breaks, tell us at support@d-effect.com and we'll fix it.
Screenshots
Verdict
The clearest difference is price: (d)effect at Free against Color Curves's $1.99. (d)effect also leads on rating (3.0 vs 1.0) and update cadence (every 2 weeks vs every 9 months). Color Curves's advantage is review sentiment (40% vs 0%) and device support (3 vs 1). On ratings volume, ads and in-app purchases 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
(d)effect is free to download; Color Curves costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
(d)effect holds the better App Store score, 3.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews complicate that: 40% of Color Curves's written reviews are positive against 0% of (d)effect's, so the app with the better star average is not the one people write more warmly about.
Color Curves ships an update every 9 months, (d)effect every 2 weeks. The most recent releases landed on October 5, 2026 and October 2, 2026 respectively.
| Parameter | Color Curves | (d)effect |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 1.0 (1 ratings) | 3.0 (2 ratings) — better |
| Positive reviews | 40.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 9 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 26.2 |
| Further details — not scored | ||
| Size | 1 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | JHND i Sverige AB | Joao Campagnolo |
Customer experience
Color Curves
(d)effect
In-app purchases
Color Curves
No in-app purchases
(d)effect
No in-app purchases
Questions
Is Color Curves free?
Is (d)effect free?
Which has better reviews, Color Curves or (d)effect?
Do Color Curves or (d)effect have ads?
Which is updated more often, Color Curves or (d)effect?
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