# StemFox Scientific Calculator vs Camera Data Logger

The clearest difference is in-app purchases: Camera Data Logger at none against StemFox Scientific Calculator's 6. StemFox Scientific Calculator's advantage is update cadence (every 3 months vs every 8 months) and iOS requirement (15 vs 26.2). On price, ads and device support there is nothing between them.

Both are free to download. StemFox Scientific Calculator sells 6 in-app purchases, starting at $2.99 per month. Camera Data Logger asks for nothing beyond the download.

StemFox Scientific Calculator ships an update every 3 months, Camera Data Logger every 8 months. The most recent releases landed on October 10, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | StemFox Scientific Calculator | Camera Data Logger |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (10 ratings)](https://appshunter.io/ios/app/stemfox-scientific-calculator/id1411592118/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 90.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 8 months |
| Monetization | Freemium | — |
| Size | 16 MB | 1 MB |
| Requires iOS | **15** | 26.2 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Joshua Bryson](https://appshunter.io/developer/1367675392) | [Clint Guymon](https://appshunter.io/developer/1775201073) |

## What reviewers say

### StemFox Scientific Calculator

[App page](https://appshunter.io/ios/app/stemfox-scientific-calculator/id1411592118)

Streamline complex STEM calculations with a powerful calculator, textbook equation solver, and comprehensive unit converter. Designed for engineers, it reduces busywork and improves accuracy for homework and technical tasks.

**Highlights:** Advanced scientific calculator with 80+ functions, Textbook equation solver for any variable, Searchable equation database by chapter, Fast table lookup with linear interpolation, Comprehensive unit converter with 300+ conversions, Copy and paste functionality for values and equations

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly - Unlimited | $2.99 | per month |
| Yearly - Unlimited | $9.99 | per year |
| Donut | $0.99 | one-time |
| Drink | $2.99 | one-time |
| Taco | $4.99 | one-time |
| Pizza | $9.99 | one-time |


### Camera Data Logger

[App page](https://appshunter.io/ios/app/camera-data-logger/id6737197434)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is StemFox Scientific Calculator free?

StemFox Scientific Calculator is free to download, with in-app purchases available.

### Is Camera Data Logger free?

Camera Data Logger is free to download, with no in-app purchases.

### Do StemFox Scientific Calculator or Camera Data Logger have ads?

Neither StemFox Scientific Calculator nor Camera Data Logger shows ads.

### Which is updated more often, StemFox Scientific Calculator or Camera Data Logger?

StemFox Scientific Calculator ships an update every 3 months, and Camera Data Logger every 8 months. Most recently, StemFox Scientific Calculator was updated on October 10, 2026 and Camera Data Logger on October 4, 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.*