Undertone vs LogGate LUTLab
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Undertone
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Every image has a color structure. Undertone shows it to you. Bring in any image, a photo, a painting, a screenshot. In seconds, the app breaks down the color structure underneath: palette, harmony, temperature, and value. The relationships that make an image feel right, made visible. All processing happens on your device. Your images never leave your device. What you get with every analysis: Palette with proportions. Not flat swatches. Dominant colors shown by actual weight. A 60% warm neutral with a 5% cool accent is a different palette than 50/50. Every color labeled with hex codes and painter-friendly names. Yellow Ochre, not "Autumn Sunset Dream." Color harmony. The relationship between your colors identified and named: complementary, analogous, triadic, split-complementary, tetradic, square, or monochromatic. Real palettes rarely sit on textbook angles, so Undertone names the closest fit. Colors plotted on a wheel so you can see the geometry. Temperature map. A warm-cool overlay on your image that makes the invisible visible. Muddy shadows? Probably a temperature problem, warm paint leaking into your cools. Golden hour magic? Warm light forces cool shadows by contrast. Toggle the map on, and the thing you couldn't diagnose becomes obvious. Value structure. Your image stripped to grayscale, divided into clear zones: light, mid-tone, dark. Value does more work than color. A painting with strong values and wrong colors still reads. This automates the painter's squint. Built for people who work with color: Painters studying a master painting at the museum, analyzing a reference before mixing, or diagnosing why the shadows look muddy. Photographers translating a mood board into concrete editing decisions, or understanding why golden hour works so they can repeat it. Designers extracting palettes from real-world references and showing clients why a color scheme works. With evidence, not "trust me." Art students crossing the gap between intuition and understanding. Every analysis is a micro-lesson in color theory. Every analysis is saved automatically. Your library becomes a personal color reference you can browse anytime. Free: 20 analyses at a time with the Original, Temperature, Values, and Saturation modes, plus the palette and harmony for every image. Premium: Composition (10 guide types), Contrast focal analysis, tinted value bands and 2 to 9 tonal steps, unlimited history, full-resolution export. One-time purchase. No subscription. Stop guessing. Start seeing.
LogGate LUTLab
Transform Apple Log footage into polished videos directly on your iPhone or iPad. Preview color grading in real-time, apply professional LUTs, and export ready-to-share clips without needing a desktop. Offers on-device processing for privacy and speed.
- Real-time Apple Log preview
- Built-in and custom LUT import
- On-device processing
- Export H.264 and HEVC
- Browse and import from Photos
- iPhone and iPad optimized
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LUT Lab turns your Apple Log footage into finished, color-graded video — right on your iPhone or iPad. No desktop required. Shoot in Apple Log on iPhone 15 Pro or later, then open LUT Lab to instantly see how your footage will look with a professional color transform applied. Preview in real time, pick a LUT, and export a polished clip ready to share or drop into your editing timeline. REAL-TIME APPLE LOG PREVIEW See your Apple Log clips transformed to Rec.709 the moment you open them. No more guessing what flat, desaturated log footage will look like once graded. Tap to toggle between the original log image and the graded result. BUILT-IN LUT — FREE TO USE Start with the included Apple Log → Rec.709 V1 transform and see your footage in accurate Rec.709 the moment you open it. UNLOCK MORE WITH LUT LAB PRO Upgrade to access Apple Log V2, the full built-in LUT catalog, custom .cube LUT import, and HEVC export. One purchase, no subscription. BROWSE & IMPORT FROM PHOTOS LUT Lab connects to your Photos library and automatically detects Apple Log clips. Browse, select, and start grading without leaving the app. EXPORT YOUR GRADE Export in H.264 (free) or upgrade to Pro for HEVC (H.265) — smaller files, same cinema quality. Finished clips save to Photos or share via AirDrop, Messages, or any app on your device. ENTIRELY ON-DEVICE No cloud. No accounts. LUT Lab processes everything locally on your device using Metal-accelerated rendering. Your footage never leaves your phone. BUILT FOR iPHONE & iPAD Designed for iPhone 15 Pro and later — the devices that shoot Apple Log. iPad support with an adapted layout for larger screens makes grading even more comfortable. WHO IS LUT LAB FOR? • iPhone filmmakers who shoot Apple Log and want to preview their look on set • Creators who grade on desktop but want a quick mobile preview of their LUTs • Videographers who need to send a graded clip to a client from their phone • Anyone who wants their Apple Log footage to look great without opening a full NLE From the makers of LogGate — trusted tools for iPhone video professionals. FREE TO START, UPGRADE FOR MORE Download LUT Lab free for the core Apple Log preview workflow, then unlock premium features with an in-app purchase when you need the full toolset.
Screenshots
Verdict
The clearest difference is device support: Undertone at 4 against LogGate LUTLab's 2. Undertone also leads on iOS requirement (15.0 vs 17.0). On price, 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
Both are free to download. Undertone sells 1 one-off in-app purchase and LogGate LUTLab sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
| Parameter | Undertone | LogGate LUTLab |
|---|---|---|
| Price | Free | Free |
| Rating | — | 1.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 9 days | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 32 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Paintingstack Technologies SpA | Matt Stevens |
In-app purchases
Undertone
- Lifetime Premium$9.99
LogGate LUTLab
- LUT Lab Pro$4.99









