Lock2Cam vs Useless APP
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Lock2Cam
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β Your Camera, Reimagined as a Sci-Fi Movie Scope β Lock2Cam overlays a real-time object detection HUD on your iPhone's camera feed, transforming everyday vision into a sci-fi / cyberpunk experience. A near-future scouter, a fighter jet's target view β visuals you'd only see in movies, now on your phone with no special gear. β Key Features β β Real-time Object Detection HUD The app detects people and objects in your camera feed in real time, drawing them with neon green frames and rune-style labels that follow each target. The stylized labels add to the sci-fi atmosphere while keeping detected names visually obscured β a deliberate nod to subject privacy. β Lock-On Animation (Red Vector) Every 20 seconds, a randomly selected target gets a dramatic red lock-on animation β the green frame turns red and zooms in to capture it. This layers extra immersion on top of the standard HUD. β Fully On-Device Processing All camera frames and detection data stay on your iPhone. Nothing is uploaded, transmitted, or stored externally. Privacy by design. β Portrait & Landscape Support The HUD adapts automatically to portrait and landscape orientation, letting you frame shots however you like. β Requirements β iPhone (iOS 16.0 or later) / iPad (iPadOS 16.0 or later) β Technical Notes β Object detection runs entirely on-device using Apple's Vision framework with the official YOLOv3 sample model (Apple Sample Code License). No cloud services, no third-party SDKs, no analytics. Turn the everyday into sci-fi.
Useless APP
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Useless APP is a technology keynote you can actually play. This release introduces the Off-Work Accelerator, where repeated taps push progress infinitely closer to 100%, and the Holiday Conservation Engine, where every simulated day off creates a later simulated workday. Neither feature changes system time or represents an official holiday schedule. The museum also includes working local Pomodoro, todo, expense and notes mini apps; an AI subscription cost ledger; DAU One; App 38; the Ransom Alarm; and six classic useless exhibits. Completed interactions create locally stored collection certificates that can be turned into posters and shared through the user-initiated iOS share sheet. All user counts, revenue, rankings, IQ, luck, awards, calendar dates and acceleration values are fictional exhibit content. The app does not measure or change a person, device, system time or real work schedule and promises no real-world outcome. All exhibits are free. There are no in-app purchases, accounts, third-party ads, analytics or tracking. The app does not collect or upload personal data. The interface and exhibit content are in Simplified Chinese.
Screenshots
Verdict
The clearest difference is iOS requirement: Lock2Cam at 16.0 against Useless APP's 18.0. On price, update cadence, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Lock2Cam ships an update every 2 weeks, Useless APP every 11 days. The most recent releases landed on October 14, 2026 and October 13, 2026 respectively.
| Parameter | Lock2Cam | Useless APP |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks | Every 11 days β better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone |
| Requires iOS | 16.0 β better | 18.0 |
| Further details β not scored | ||
| Size | 121 MB | 57 MB |
| Age rating | 4+ | 4+ |
| Developer | seiji honda | Freedom Dimension (shenzhen) Technology Co., Ltd |
In-app purchases
Lock2Cam
No in-app purchases
Useless APP
No in-app purchases









