Set Theory Clock (BerlinClock) vs PivotClock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Set Theory Clock (BerlinClock)
This app displays time using the unique Berlin Clock system, featuring 24 lamps arranged in four rows to represent hours and minutes. It offers a visually distinct way to tell time, with lamps lighting up sequentially to indicate the passing of time.
- 24-lamp display
- Hour representation (5-hour and 1-hour lamps)
- Minute representation (5-minute and 1-minute lamps)
- Sequential lamp lighting
- Unique time visualization
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The Berlin Clock consists of 24 lamps arranged in 4 rows. The top two rows (red) represent the hours, and the bottom two rows (yellow) represent the minutes. Additionally, a circular yellow lamp at the top flashes every 2 seconds. In the top rows of each color, each lamp represents 5 hours or 5 minutes, respectively, while in the bottom rows, each represents 1 hour or 1 minute. The lamps light up from left to right and from bottom to top. Once a row is full, all lamps turn off and another lamp lights up in the row above it.
PivotClock
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PivotClock is a clock app that lets you freely rotate the display to any angle - and lock it there. Unlike your phone's auto-rotation, PivotClock works independently. Set it to 0, 90, 180, 270 degrees, or any custom angle. Once locked, the clock stays exactly where you need it. FEATURES - Free Rotation Rotate the clock to any angle using the intuitive dial editor. Drag to rotate, release to snap - just like editing a photo. - Quick Presets One tap to snap to 0 / 90 / 180 / 270 degrees. Perfect for landscape bedside or upside-down mounting. - Digital and Analog Switch between a clean digital display and a classic analog face. Seconds, date, and 12/24-hour format all configurable. - 4 Themes Minimal, Bold, Retro (green glow), and Soft - each with 5 accent color options. - OLED-Optimized Pure black background saves battery on OLED screens. Burn-in protection slowly drifts the display so no pixel stays static. - Ultra Dim Mode Swipe up/down to darken the screen beyond the system minimum - ideal for bedrooms at night. - HUD Mirror Mode Horizontal flip for windshield projection or reverse-mounted displays. - Screen Always On The screen stays on as long as PivotClock is open. PERFECT FOR - Bedside clock - lay your phone flat or prop it at any angle - Desk clock - portrait, landscape, or anything between - Car mount - rotate to match your dashboard angle - Overhead mount - 180 degree flip when phone is upside down - HUD mode - mirror the display onto your windshield
Screenshots
Verdict
Set Theory Clock (BerlinClock) and PivotClock are too close to call on the numbers: across 3 compared parameters — price, in-app purchases and iOS requirement 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. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Set Theory Clock (BerlinClock) | PivotClock |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) — better | — |
| Positive reviews | 16.7% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 129 months | — |
| Ads | No | — |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone — better | — |
| Requires iOS | 17.6 | 17.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Stefan Neumann | TAKAYOSHI YOSHIKAWA |
In-app purchases
Set Theory Clock (BerlinClock)
No in-app purchases
PivotClock
No in-app purchases
Questions
Is Set Theory Clock (BerlinClock) free?
Is PivotClock free?
Other comparisons
