Physics Calc vs Hello, Hero
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Physics Calc
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With this application you can: Calculate volume and area of geometric figures. Calculate final speed, initial speed, distance, time and accelerate the varied rectilinear uniform motion (M.U.R.V.), shows the result and clears the equation. Convert units of distance, volume, area, power, energy, weight, radiation, sound, pressure, fuel consumption, time, angle, density, among others. Calculate the hypotenuse and the legs of the right triangle by Pythagoras and any triangle by theorem of cosines and sines. Calculate the square perfect binomial in thousandths of a second It is a design as I would like an application when I was a student, I open it, enter the data, it solves the exercises instantly and that's it.
Hello, Hero
Explore historical narratives and personal stories by chatting with virtual representations of famous figures. This app allows you to immerse yourself in different perspectives and learn through interactive conversations across any language. Enjoy features like role switching, dialogue history, and customizable display modes.
- Conversations with historical figures
- Support for any language
- Switchable role dialogues
- Dialogue history storage
- Light/dark mode
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Engage in conversations across time with historical figures, legendary heroes, opera stars, and so forth, to experience their stories firsthand. - Support any language - Support switching multiple role dialogues (click to navigate) - Support voice chat (hold to talk, playback / TTS) - Support model settings and token purchases - Support dialogue time viewing - Support dialogue content copying - Support persistent storage and reading of chat information - Support light/dark mode
Screenshots
Verdict
The clearest difference is update cadence: Hello, Hero at weekly against Physics Calc's every 5 weeks. Physics Calc's advantage is price ($0.99 vs $1.99) and iOS requirement (12.1 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
Physics Calc costs $0.99 and Hello, Hero $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Physics Calc ships an update every 5 weeks, Hello, Hero weekly. The most recent releases landed on October 13, 2026 and October 16, 2026 respectively.
| Parameter | Physics Calc | Hello, Hero |
|---|---|---|
| Price | $0.99 — better | $1.99 |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 5 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.1 — better | 15.6 |
| Further details — not scored | ||
| Size | 67 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Isaac Cabello | 金攀 虞 |
In-app purchases
Physics Calc
No in-app purchases
Hello, Hero
No in-app purchases
Questions
Is Physics Calc free?
Is Hello, Hero free?
Do Physics Calc or Hello, Hero have ads?
Which is updated more often, Physics Calc or Hello, Hero?
Other comparisons
