Lensgrade vs FaceLock
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Lensgrade
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Lensgrade is an on-device photo keeper-check that helps you sort soft shots from sharp ones. Choose a photo and Lensgrade scores it locally. It measures sharpness, then goes further: it finds the subject (a face, or a center region when there is no face) and scores focus there so a sharp portrait on a plain background stops reading soft. It builds a luminance histogram to flag clipped highlights and shadows, and it reads the photo's EXIF focal length and shutter speed to apply the reciprocal rule and estimate camera-shake risk. These signals combine into one clear keeper-or-cull verdict, with a breakdown showing exactly what produced the score. A Shot Diagnosis card explains why a frame is soft β camera shake, focus miss, or extreme exposure β and gives a one-sentence fix. When EXIF is present it shows the actual shutter used versus the safe threshold with a stop-count delta, so you know exactly how far off the reciprocal rule you were. Focal length, 35mm equivalent, aperture, and ISO appear on every scored photo that carries metadata. Batch a roll and Lensgrade ranks it sharpest-first, groups frames into bursts by capture time, and crowns the best frame in each. Your score history is searchable and sortable by sharpness, exposure, date, star, or keeper, and you can re-open saved batches as ranked groups or export any batch as a CSV. A Library Stats panel at the top of History shows your keep rate, average composite score, and a star-distribution bar so you can track how your shooting improves over time. A bundled Learn tab adds a photo-quality glossary, how-to guides, a crop-factor table, typical score ranges by scene, and a new Field Lab with source-backed technique cards for shutter speed, focus maps, EXIF audits, histograms, depth of field, low-light triage, and burst culling. The Score and Batch tabs also include bundled sample photos, so you can try the real on-device analyzer without granting Photos access first. Lensgrade analyzes the detail in delivered photos. It does not measure a lens's or camera's optical quality, and it never changes your library. Photos are selected by you and processed on device. No account, no ads, no analytics, no tracking, no in-app purchases.
FaceLock
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Record sharper selfie videos with the back camera, even when you cannot see the screen. FaceLock uses on-device face tracking and haptic guidance to help keep your face centered while you shoot. BACK CAMERA SELFIE VIDEO - Shoot with the higher-quality rear camera - Capture better detail and low-light video - Stop guessing where to aim HAPTIC FRAMING - Hold your phone with the back camera facing you - Feel pulses when FaceLock finds your face - Follow gentle haptic cues as you drift left, right, closer, or farther away - Quiet feedback means you are framed and ready DESIGNED FOR EYES-FREE RECORDING - Record without audio prompts bleeding into your video - Keep your face centered for vlogs, updates, and self-tapes - Simple camera controls built for quick solo recording PRIVATE BY DESIGN - Face tracking happens on device - No account required - No tracking and no ads Frame yourself by feel with FaceLock. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is price: FaceLock at Free against Lensgrade's $3.99. Lensgrade's advantage is iOS requirement (17.0 vs 26.0). On ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
FaceLock is free to download; Lensgrade costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Lensgrade | FaceLock |
|---|---|---|
| Price | $3.99 | Free β better |
| Update frequency | Every 6 days | β |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad β better | iPhone |
| Requires iOS | 17.0 β better | 26.0 |
| Further details β not scored | ||
| Size | 48 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Robert Corbin | Alejandro Pacheco |
In-app purchases
Lensgrade
No in-app purchases
FaceLock
No in-app purchases





