# StudentCalc vs Voltage Regulator

The clearest difference is price: Voltage Regulator at Free against StudentCalc's $1.99. Voltage Regulator also leads on iOS requirement (12.0 vs 26.0). StudentCalc's advantage is in-app purchases (none vs 1) and rating (5.0 vs 4.8). On review sentiment, ratings volume, ads and device support there is nothing between them.

Voltage Regulator is free to download; StudentCalc costs $1.99 up front. Voltage Regulator sells 1 one-off in-app purchase. StudentCalc asks for nothing beyond the download.

StudentCalc holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 2 and 5 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

StudentCalc ships an update every 4 months, Voltage Regulator every 9 months. The most recent releases landed on October 6, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | StudentCalc | Voltage Regulator |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/studentcalc/id466330694/reviews)** | [4.8 (5 ratings)](https://appshunter.io/ios/app/voltage-regulator/id1149145965/reviews) |
| Number of ratings | 2 | **5** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 9 months |
| Monetization | Paid | **Freemium** |
| Size | 16 MB | 3 MB |
| Requires iOS | 26.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Hannes Sverrisson](https://appshunter.io/developer/428851947) | [Siu Yuen Ho](https://appshunter.io/developer/814088527) |

## What reviewers say

### StudentCalc

[App page](https://appshunter.io/ios/app/studentcalc/id466330694)

A scientific calculator designed for ease of use on mobile devices. It offers large, uncluttered buttons and intuitive gesture-based access to functions, eliminating the need for complex key combinations. Customize your experience with background options and enjoy extended accuracy for precise calculations.

**Highlights:** Gesture-based function access, Large, uncluttered buttons, Backspace correction key, Copy and paste functionality, Customizable background and display, Extended accuracy calculations

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

**In-app purchases:** none


### Voltage Regulator

[App page](https://appshunter.io/ios/app/voltage-regulator/id1149145965)

Calculate resistor combinations for adjustable voltage regulators. This tool helps electronics hobbyists and professionals determine desired output voltages and resistor values. Results can be exported and shared easily.

**Highlights:** Adjustable voltage regulator support, Calculate resistor combinations, Determine resistor values, Export results to CSV, Share CSV via iCloud/AirDrop

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Pro features | $1.99 | one-time |


## Frequently asked questions

### Is StudentCalc free?

StudentCalc costs $1.99, with no in-app purchases.

### Is Voltage Regulator free?

Voltage Regulator is free to download, with in-app purchases available.

### Which has better reviews, StudentCalc or Voltage Regulator?

StudentCalc is rated higher. StudentCalc averages 5.0 out of 5 from 2 ratings, while Voltage Regulator averages 4.8 from 5 ratings.

### Do StudentCalc or Voltage Regulator have ads?

Neither StudentCalc nor Voltage Regulator shows ads.

### Which is updated more often, StudentCalc or Voltage Regulator?

StudentCalc ships an update every 4 months, and Voltage Regulator every 9 months. Most recently, StudentCalc was updated on October 6, 2026 and Voltage Regulator on October 10, 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.*