ColorCast vs 720nm
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ColorCast
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Quickly convert image color spaces. - Supports sRGB, Display P3, Adobe RGB, Linear sRGB, Rec.2020, and Grayscale Gamma 2.2 - Supports directly assigning a color space without conversion
720nm
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720nm is a fast, native infrared photo editor for iPhone and iPad. Built for photographers shooting on IR-converted or IR-filtered cameras who want a real editing workflow without opening a laptop. Everything you need for IR, done right: • Channel swap - one tap for the classic red/blue "blue sky" IR conversion, plus full manual RGB channel mixing when you want control. • Tap white balance - sample foliage or any reference point to neutralize the deep color cast instantly, with manual temperature and tint too. • Dramatic B&W - a channel-weighted mixer built for high-contrast infrared black & white, not a flat desaturate. • Hot-spot correction - automatically reduce the bright center hot spot common with IR lenses, then clean up residue by hand with the brush (Apple Pencil supported on iPad). • Tone controls - contrast, clarity, and sharpening tuned for flat, soft IR captures. • RAW in, high-quality out - open your RAW files; export JPEG, 10-bit HEIC, or 16-bit TIFF for a lossless desktop round-trip. Non-destructive, always. Your edits are a live stack - the original pixels are never touched until you export. EXIF, orientation, and color space survive the round-trip. Fast where it counts. Real-time preview on channel and tone operations, so editing never lags. On iPad, the larger canvas and Apple Pencil make manual hot-spot touch-up precise. Honest, simple pricing. One price to download. Every feature unlocked from the first launch. No trial, no subscriptions, no in-app purchases, no per-feature paywalls, no tracking.
Screenshots
Verdict
The clearest difference is price: ColorCast at Free against 720nm's $4.99. 720nm's advantage is update cadence (weekly vs every 5 months). 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
ColorCast is free to download; 720nm costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
ColorCast ships an update every 5 months, 720nm weekly. The most recent releases landed on October 28, 2026 and October 14, 2026 respectively.
| Parameter | ColorCast | 720nm |
|---|---|---|
| Price | Free — better | $4.99 |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 5 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.6 | 17.0 — better |
| Further details — not scored | ||
| Size | 28 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | 欣辰 叶 | Filip Raszyk |
In-app purchases
ColorCast
No in-app purchases
720nm
No in-app purchases








