Torricelli vs HF Smart
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Torricelli
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Torricelli's Theorem Calculator Based on Torricelli's Law, also known as Torricelli's Theorem, this calculator is a tool in fluid dynamics that relates the speed of fluid flowing out of an opening to the height of the fluid above the opening. Features: • Input parameters such as Tank Height, Tank Radius, Spigot Height, and Spigot Radius. • Simulate water flowing out from the tank in 3D. • Simulate the volume of water remaining over time. • Simulate water pressure over time. • Simulate water speed at the spigot over time. • Simulate water distance over time. • Simulate the farthest water height remaining over time. • Simulate the time needed for the water to flow out until reaching the spigot height. • Works seamlessly on both iPhone and iPad. • Lightweight, compact app optimized for everyday use. • Ad-free and built with privacy in mind. Torricelli's Theorem states that if a tank contains liquid and is open to the atmosphere at its top, and there is an orifice in the tank at a height h below the top of the liquid, then the speed of outflow from the orifice is √2gh, provided the liquid obeys Bernoulli's equation and the top of the liquid can be regarded as motionless. Torricelli's Theorem Formula: v = √2 * g * h where: v : Fluid Speed at the Orifice, in meters per second (m/s) h : Height of the Orifice from the Top, in meters (m) g : The acceleration due to gravity, 9.80665 m/s² Thanks for your support, and do visit nitrio.com for more apps for your iOS devices.
HF Smart
Control your smart lighting fixtures with this intelligent lighting control application. Easily manage your lights for enhanced ambiance and convenience.
- Intelligent lighting control
- Control smart lighting fixtures
- Ambiance enhancement
- Convenient light management
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This app is an intelligent lighting control app that allows you to control smart lighting fixtures.
Screenshots
Verdict
The clearest difference is price: HF Smart at Free against Torricelli's $2.99. HF Smart also leads on update cadence (every 2 months vs every 28 months). Torricelli's advantage is iOS requirement (13 vs 15.6). On ads, in-app purchases and device support 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
HF Smart is free to download; Torricelli costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Torricelli ships an update every 28 months, HF Smart every 2 months. The most recent releases landed on October 1, 2026 and October 15, 2026 respectively.
| Parameter | Torricelli | HF Smart |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | — | 1.7 (128 ratings) — better |
| Positive reviews | — | 13.8% of reviews |
| Number of ratings | — | 128 — better |
| Update frequency | Every 28 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13 — better | 15.6 |
| Further details — not scored | ||
| Size | 1 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | Heng Jia Liang | 鉴深 徐 |
Bugs and requests
Torricelli
Not enough reviews yet to summarise bugs or requests.
HF Smart
Reported bugs
3 issues- App not responding after recent update
- Unable to change language settings
- Pairing process not working consistently
Requested features
3 requests- Improve pairing instructions
- Add dark mode option
- Provide better language support
In-app purchases
Torricelli
No in-app purchases
HF Smart
No in-app purchases









