# Future Value Calculator vs Sparky Toolbox

The clearest difference is review sentiment: Sparky Toolbox at 100% against Future Value Calculator's 0%. Sparky Toolbox also leads on rating (5.0 vs 4.2) and in-app purchases (none vs 1). Future Value Calculator's advantage is price (Free vs $19.99) and ratings volume (72 vs 4). On ads and device support there is nothing between them.

Future Value Calculator is free to download; Sparky Toolbox costs $19.99 up front. Future Value Calculator sells 1 one-off in-app purchase. Sparky Toolbox asks for nothing beyond the download.

Sparky Toolbox holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Future Value Calculator has 72 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 0% of Future Value Calculator's written reviews are positive against 100% of Sparky Toolbox's.

Future Value Calculator ships an update every 14 months, Sparky Toolbox every 5 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Future Value Calculator | Sparky Toolbox |
| --- | --- | --- |
| Price | **Free** | $19.99 |
| Rating | [4.2 (72 ratings)](https://appshunter.io/ios/app/future-value-calculator-calc/id1524889662/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/sparky-toolbox/id6782320797/reviews)** |
| Number of ratings | **72** | 4 |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 5 days** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 1 MB | 23 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Phan Nhat Đang](https://appshunter.io/developer/1437390098) | [TrinFJHTechSolutions LLC](https://appshunter.io/developer/6782320799) |

## What reviewers say

### Future Value Calculator

[App page](https://appshunter.io/ios/app/future-value-calculator-calc/id1524889662)

Calculate the future value of an investment based on compounding periods, interest rates, initial amount, and periodic payments. This tool is essential for understanding financial concepts like loans and mortgages.

**Highlights:** Calculate future value (FV), Input compounding periods (N), Input interest/yield rate (I/Y), Input starting amount, Input periodic payment (PMT), Understand time value of money

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

**In-app purchases (1)**

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


### Sparky Toolbox

[App page](https://appshunter.io/ios/app/sparky-toolbox/id6782320797)

This app provides 9 essential electrical calculation tools for field electricians. Streamline project estimating, bidding, and field verification with instant results for Ohms Law, wire sizing, voltage drop, and more.

**Highlights:** 9 essential electrical calculators, Ohms Law calculations, Motor and Transformer OCPD & Wire Sizing, Conduit Fill and Voltage Drop calculators, Standard Dwelling Load and Transformer Sizing, Solar Panel calculator, Designed for field use with a clean interface

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

**In-app purchases:** none


## Frequently asked questions

### Is Future Value Calculator free?

Future Value Calculator is free to download, with in-app purchases available.

### Is Sparky Toolbox free?

Sparky Toolbox costs $19.99, with no in-app purchases.

### Which has better reviews, Future Value Calculator or Sparky Toolbox?

Sparky Toolbox is rated higher. Future Value Calculator averages 4.2 out of 5 from 72 ratings, while Sparky Toolbox averages 5.0 from 4 ratings.

### Do Future Value Calculator or Sparky Toolbox have ads?

Neither Future Value Calculator nor Sparky Toolbox shows ads.

### Which is updated more often, Future Value Calculator or Sparky Toolbox?

Future Value Calculator ships an update every 14 months, and Sparky Toolbox every 5 days. Most recently, Future Value Calculator was updated on October 24, 2026 and Sparky Toolbox on October 24, 2026.

---

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