# Thin Lens Equation Calc vs PyCalc

The clearest difference is price: PyCalc at Free against Thin Lens Equation Calc's $2.99. PyCalc also leads on update cadence (every 2 weeks vs every 27 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

PyCalc is free to download; Thin Lens Equation Calc costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Thin Lens Equation Calc ships an update every 27 months, PyCalc every 2 weeks. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Thin Lens Equation Calc | PyCalc |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | — | **[5.0 (18 ratings)](https://appshunter.io/ios/app/pycalc/id1594004797/reviews)** |
| Number of ratings | — | **18** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 27 months | **Every 2 weeks** |
| Monetization | — | Free |
| Size | 1 MB | 120 MB |
| Requires iOS | **17.6** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Nitrio](https://appshunter.io/developer/321121189) | [Youreka Tech, LLC](https://appshunter.io/developer/1546239960) |

## What reviewers say

### Thin Lens Equation Calc

[App page](https://appshunter.io/ios/app/thin-lens-equation-calc/id1414198278)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### PyCalc

[App page](https://appshunter.io/ios/app/pycalc/id1594004797)

This app offers a revolutionary approach to mobile calculations, allowing users to view and edit entire equations at once. It leverages the power of Python 3.11.1 for advanced functions, symbolic math, and financial analysis, making complex computations accessible on the go.

**Highlights:** Real-time editable calculation view, Python 3.11.1 interpreter, Programmable scientific calculator, Support for matrices and fractions, Built-in Python packages (math, sympy), Financial analysis functions, Symbolic math capabilities

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Thin Lens Equation Calc free?

Thin Lens Equation Calc costs $2.99, with no in-app purchases.

### Is PyCalc free?

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

### Do Thin Lens Equation Calc or PyCalc have ads?

Neither Thin Lens Equation Calc nor PyCalc shows ads.

### Which is updated more often, Thin Lens Equation Calc or PyCalc?

Thin Lens Equation Calc ships an update every 27 months, and PyCalc every 2 weeks. Most recently, Thin Lens Equation Calc was updated on October 25, 2026 and PyCalc on October 24, 2026.

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