TetraClock vs LensCount
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TetraClock
This clock app uses falling tetromino blocks to display the time. Customize colors, animations, and display formats. Note that the displayed time may have slight discrepancies due to animation effects.
- Tetromino block time display
- Customizable colors and animations
- 12/24-hour format
- Seconds display toggle
- Adjustable falling speed
- Background color options
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'TetraClock' is a clock app that represents the time by stacking seven types of single-sided tetromino-shaped blocks as they fall. The differences from the paid version are as follows: ・Contains ads ・No Watch App [How to Use] Tap the screen: Open the settings screen. Long press the screen: Stack the blocks again. [Main Features] - Switch between 12/24-hour display - Toggle seconds display ON/OFF - Monotone display - Fill in ON/OFF - Change outline color - Change transition animations - Change falling speed - Change background color [Notices] Due to the animation effect used for changing numbers, there may be a discrepancy between the displayed time and the actual time. Please do not use the displayed time as a basis for important decisions.
LensCount
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4 Dedicated Sensing Modes: 「Gesture Mode」: Designed for close-range detection. Count by waving your hand or finger. Perfect for cooking, labs, or anytime your hands are busy. 「Fitness Mode」: Your AI workout assistant. Automatically detects and counts "Jumping Jacks," "Squats," and more. Focus on your reps, let us do the math. 「People Flow」: A must-have for shops and events. Set up your iPhone to monitor and tally foot traffic in real-time. 「Traffic Mode」: Professional-grade traffic analysis. Track vehicle movement at intersections and gather flow data effortlessly. Why LensCount? Touchless Interface: Experience the future of interaction with "Air-Sensing" technology. Zero-Config: Pick a mode, point the camera, and start counting immediately. Privacy-First: All processing is done on-device. Your camera feed stays local and private. Apple (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula
Screenshots
Verdict
The clearest difference is in-app purchases: TetraClock at none against LensCount's 2. TetraClock also leads on device support (3 vs 1) and iOS requirement (14.0 vs 16.0). LensCount's advantage is ads (none vs shown). On price and update cadence 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. LensCount sells 2 one-off in-app purchases. TetraClock asks for nothing beyond the download.
TetraClock ships an update every 2 days, LensCount daily. The most recent releases landed on October 22, 2026 and October 25, 2026 respectively.
| Parameter | TetraClock | LensCount |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (3 ratings) — better | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 2 days | Daily — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 14.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 6 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Legal Prompt Inc. | Yi Che Chiu |
In-app purchases
TetraClock
No in-app purchases
LensCount
- Unlocked for 30 days$0.99
- Unlocked for life$2.99









