# Tri vs Panecal Scientific Calculator

The clearest difference is ratings volume: Panecal Scientific Calculator at 2K against Tri's 1. Panecal Scientific Calculator also leads on update cadence (every 2 months vs every 12 months) and iOS requirement (12.0 vs 15.6). Tri's advantage is review sentiment (100% vs 76%) and rating (5.0 vs 4.8). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Tri holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Panecal Scientific Calculator has 2K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of Tri's written reviews are positive against 76% of Panecal Scientific Calculator's.

Tri ships an update every 12 months, Panecal Scientific Calculator every 2 months. The most recent releases landed on October 20, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Tri | Panecal Scientific Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tri-func/id496807268/reviews)** | [4.8 (2K ratings)](https://appshunter.io/ios/app/panecal-scientific-calculator/id668500803/reviews) |
| Number of ratings | 1 | **2K** |
| Positive reviews | **100.0% of reviews** | 75.8% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 12 months | **Every 2 months** |
| Monetization | Ad-supported | Ad-supported |
| Size | 4 MB | 34 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Thirdware.jp](https://appshunter.io/developer/464228680) | [Noriyasu Kutsuzawa](https://appshunter.io/developer/668500806) |

## What reviewers say

### Tri

[App page](https://appshunter.io/ios/app/tri-func/id496807268)

This utility app provides the formula and value for calculating triangle properties. It's designed for quick access to mathematical formulas related to triangles.

**Highlights:** Triangle formula display, Value calculation, Quick access utility, Mathematical formulas

**Features:** Vision Pro support

**In-app purchases:** none


### Panecal Scientific Calculator

[App page](https://appshunter.io/ios/app/panecal-scientific-calculator/id668500803)

This app functions as a scientific calculator, enabling users to input and edit complex formulas with ease. It supports formula history, variable memory, and various number system conversions for accurate calculations.

**Highlights:** Formula editing with cursor and swipe, Reuse past formulas, Variable memory for calculations, Binary, octal, decimal, hexadecimal conversion, M+/M- memory functions, Angle unit settings (DEG, RAD, GRAD)

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Great button layout
- 👍 Intuitive and user-friendly
- 👍 Powerful scientific functions
- 👍 Convenient display and history
- 👍 Useful for various fields (construction, engineering, etc.)

**What reviewers complain about**

- 🐛 Calculation errors in some cases
- 🐛 Glitches and crashes reported
- 🔍 Lack of engineering prefixes
- 📺 Ads can be intrusive
- 🔍 Suboptimal button placement and sizing

**Reported bugs**

- Inability to switch back from Bin mode
- Calculation history not scrolling properly
- Inconsistent behavior with certain operations

**Requested features**

- Unit conversion tools
- Customizable font and icon
- Ability to rotate screen
- More advanced programming features
- Improved order of operations handling


## Frequently asked questions

### Is Tri free?

Tri is free to download, with no in-app purchases.

### Is Panecal Scientific Calculator free?

Panecal Scientific Calculator is free to download, with no in-app purchases.

### Which has better reviews, Tri or Panecal Scientific Calculator?

Tri is rated higher. Tri averages 5.0 out of 5 from 1 ratings, while Panecal Scientific Calculator averages 4.8 from 2K ratings.

### Do Tri or Panecal Scientific Calculator have ads?

Both Tri and Panecal Scientific Calculator show ads.

### Which is updated more often, Tri or Panecal Scientific Calculator?

Tri ships an update every 12 months, and Panecal Scientific Calculator every 2 months. Most recently, Tri was updated on October 20, 2026 and Panecal Scientific Calculator on October 29, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*