Grejn vs Loga
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Grejn
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Grejn is built for photographers who want more control from the iPhone camera. Capture in Apple ProRAW, choose the lens that fits the shot, adjust exposure, and keep your workflow focused on image quality from capture to export. Fine-tune the look of every photo with detailed controls for contrast, highlights, shadows, clarity, sharpness, saturation, vibrance, white balance, color grading, HSL adjustments, bloom, vignette, and grain. Save your own presets, switch between looks quickly, and create a consistent visual style without leaving the app. Grejn also gives you practical controls that matter while shooting. Tap to focus, lock focus with a long press, choose quality or balanced capture priority, set maximum resolution, and export styled HEIF images in 8-bit or 10-bit. On supported devices and lenses, you can also save the original RAW DNG separately for more flexibility in post.
Loga
Capture still photos with cinematic texture using Apple Log on compatible iPhones. Apply and preview custom LUTs in real-time, and edit your shots directly within the app. Save images in high-quality formats to prevent banding.
- Apple Log still photography
- Real-time LUT preview
- Custom LUT import (.cube)
- In-app post-processing and editing
- Lossless 16-bit TIFF saving
- Intuitive minimalist UI
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[Ver 2.0 Update] The highly anticipated "Editing Feature" is here! You can now shoot, apply LUTs, edit, and export your photos entirely within Loga. [App Overview] Loga is a dedicated camera app designed for creators to unlock the maximum potential of Apple Log on the iPhone 15 Pro, 16 Pro, and 17 Pro series. "I want to capture still photos with the cinematic texture of Apple Log, just like in video." Loga was born from this exact desire. Capture still photos using the Apple Log format—which boasts an incredible dynamic range—and save them in the highest quality. Furthermore, you can load your favorite custom LUTs (.cube files) and preview them in real-time while shooting. Bypass the standard over-processed iPhone look and capture the natural, beautiful atmosphere exactly as your eyes see it. [Key Features] ◆ Apple Log Still Photography Capture the flat, beautifully gradated tones of Apple Log—previously limited to video—directly as still photos. ◆ Real-time LUT Preview & Shooting Import your own custom .cube LUTs. See the color grading applied in real-time on your viewfinder and save the photo with the LUT baked in. ◆ [NEW] Post-Processing & Editing Re-edit your Log data directly within the app and export the final image. You can change LUTs after shooting and make fine adjustments to dial in your perfect look. ◆ Lossless Highest-Quality Saving Save your photos in uncompressed 16-bit TIFF or high-quality 10-bit HEIF to completely prevent color banding (posterization). ◆ Intuitive, Minimalist UI Enjoy a user interface that feels as intuitive as the native camera app, but packed with pro features: minimum shutter speed lock, white balance adjustments, and a highly functional custom LUT manager. [Recommended For] Those who dislike the "over-processed" or "over-sharpened" look of standard smartphone photos and want a natural, DSLR-like texture. Photographers who want to enjoy street photography with cinematic color grading. Creators who aren't satisfied with standard filters (like VSCO or Lightroom) and want to pursue their own unique color grading. [Required Devices] This app requires hardware that supports Apple Log. Available exclusively on the following Pro models: iPhone 15 Pro / iPhone 15 Pro Max iPhone 16 Pro / iPhone 16 Pro Max iPhone 17 Pro / iPhone 17 Pro Max [About Loga Premium] Loga is free to download, allowing you to take up to 10 photos with full features as a trial. If you love the experience, please upgrade to "Loga Premium" (Monthly / Annual / One-Time Lifetime Purchase) within the app. This removes the capture limit, allowing you to shoot and edit unlimited photos. Experience the breathtaking cinematic world of Loga today! Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
Grejn and Loga are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Grejn sells 1 one-off in-app purchase and Loga sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
Grejn ships an update weekly, Loga every 5 days. Both last shipped on October 31, 2026.
| Parameter | Grejn | Loga |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Weekly | Every 5 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Freemium |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 26.2 | 26.2 |
| Further details — not scored | ||
| Size | 8 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | David Mismas | JUNPEI YOSHINO |
In-app purchases
Grejn
- TrueCamera Pro$6.99
Loga
- Loga Premium 月額$1.991 Month
- Loga Premium 年額7 Days trial$9.991 Year
- Loga Premium 買い切り$19.99









