# Function Calc vs Circuit Planner

The clearest difference is price: Function Calc at Free against Circuit Planner's $2.99. Function Calc also leads on review sentiment (80% vs 60%). Circuit Planner's advantage is chart position (#187 vs unranked) and device support (3 vs 1). On update cadence, ads and in-app purchases there is nothing between them.

Function Calc is free to download; Circuit Planner costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Function Calc ships an update monthly, Circuit Planner every 2 weeks. The most recent releases landed on September 23, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Function Calc | Circuit Planner |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/function-calc/id1188227053/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | **80.0% of reviews** | 60.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | **Free** | Paid |
| Best chart rank | — | **#187** |
| Size | 5 MB | 7 MB |
| Requires iOS | 18.6 | **15** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Hugh Pelham](https://appshunter.io/developer/1188227052) | [Axel Hauschild](https://appshunter.io/developer/981831700) |

## What reviewers say

### Function Calc

[App page](https://appshunter.io/ios/app/function-calc/id1188227053)

This app offers a powerful, programmable scientific calculator with graphing capabilities. It allows users to create custom functions, store equations, and perform complex calculations with ease. The interface features a visible tape display and supports dictation for statistical analysis.

**Highlights:** Programmable custom functions, Graphing capabilities, Tape display with edit/undo, Unit conversions (120+), Dictate calculations, Export graphs (PDF, PNG)

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

**In-app purchases:** none


### Circuit Planner

[App page](https://appshunter.io/ios/app/circuit-planner/id6472896392)

**Currently charting:** #187 Top Paid · Productivity (US App Store)

Design professional IEC circuit diagrams with a user-friendly interface. Access a vast library of symbols, utilize automatic connection features, and export your plans in PDF format. Ideal for electrical engineering projects.

**Highlights:** User-friendly interface for circuit diagram creation, 1056 integrated IEC circuit diagram symbols, Automatic connection system for precise wiring, Export diagrams in PDF format, Supports A4, A3, A2 formats with up to 20 drawing sheets, Automatic backup of project data

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Function Calc free?

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

### Is Circuit Planner free?

Circuit Planner costs $2.99, with no in-app purchases.

### Do Function Calc or Circuit Planner have ads?

Neither Function Calc nor Circuit Planner shows ads.

### Which is updated more often, Function Calc or Circuit Planner?

Function Calc ships an update monthly, and Circuit Planner every 2 weeks. Most recently, Function Calc was updated on September 23, 2026 and Circuit Planner on September 22, 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.*