Hourglass vs Unvigintuple Calc
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Hourglass
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This is an approximately 3-minute hourglass that uses physics simulation to recreate realistic movements. You can enjoy watching the grains of sand smoothly fall under natural gravity while keeping track of time. With a simple and intuitive design, it's an ideal tool for meditation or improving focus. When the gyroscope sensor is enabled, the movement of the sand adjusts in real-time according to the tilt of your device. Each session offers a different atmosphere, allowing you to relax and experience the comforting analog feel within a digital space.
Unvigintuple Calc
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Display 21 calculators and perform calculations with each one.
Screenshots
Verdict
The clearest difference is update cadence: Hourglass at every 4 days against Unvigintuple Calc's every 2 weeks. On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Hourglass ships an update every 4 days, Unvigintuple Calc every 2 weeks. The most recent releases landed on October 19, 2026 and October 16, 2026 respectively.
| Parameter | Hourglass | Unvigintuple Calc |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 days β better | Every 2 weeks |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad, iPod β better |
| Requires iOS | 16.0 | 15.8.3 β better |
| Further details β not scored | ||
| Size | 27 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | kenji abe | Hideaki Uchikoshi |
In-app purchases
Hourglass
No in-app purchases
Unvigintuple Calc
No in-app purchases
