# DrPhos' Reaction Balancer vs FFKC Training Hub

The clearest difference is price: FFKC Training Hub at Free against DrPhos' Reaction Balancer's $0.99. FFKC Training Hub also leads on in-app purchases (none vs 11) and iOS requirement (13.0 vs 17.0). On ads and device support there is nothing between them.

FFKC Training Hub is free to download; DrPhos' Reaction Balancer costs $0.99 up front. DrPhos' Reaction Balancer sells 11 one-off in-app purchases. FFKC Training Hub asks for nothing beyond the download.

## The numbers

| Metric | DrPhos' Reaction Balancer | FFKC Training Hub |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/drphos-reaction-balancer/id6474077005/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Monetization | Free with in-app purchases | — |
| Size | 15 MB | 17 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Monte L Helm](https://appshunter.io/developer/1715082616) | [Fitness Factory KC LLC](https://appshunter.io/developer/1724062762) |

## What reviewers say

### DrPhos' Reaction Balancer

[App page](https://appshunter.io/ios/app/drphos-reaction-balancer/id6474077005)

Instantly balance chemical equations with this tool. It supports complex formulas and provides clear visual formatting, making it ideal for students learning stoichiometry and preparing for chemistry exams.

**Highlights:** Automatically balances chemical equations, Supports complex formulas with parentheses, Clear visual formatting with subscripts, Built-in learning support, Molar Mass Calculator, Stoichiometry Solver

**Features:** macOS Compatibility

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Quadratic Equation Solver | $0.99 | one-time |
| Significant Figures Counter | $0.99 | one-time |
| Science Calculator | $0.99 | one-time |
| Molar Mass Calculator | $0.99 | one-time |
| General Chemistry Naming | $0.99 | one-time |
| Ionic Compound Builder | $0.99 | one-time |
| pH Calculator | $0.99 | one-time |
| Reaction Balancer | $0.99 | one-time |
| Stoichiometry | $0.99 | one-time |
| Solution Concentration | $0.99 | one-time |
| Kinetics | $0.99 | one-time |


### FFKC Training Hub

[App page](https://appshunter.io/ios/app/ffkc-training-hub/id6761047242)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is DrPhos' Reaction Balancer free?

DrPhos' Reaction Balancer costs $0.99, and also offers in-app purchases.

### Is FFKC Training Hub free?

FFKC Training Hub is free to download, with no in-app purchases.

### Do DrPhos' Reaction Balancer or FFKC Training Hub have ads?

Neither DrPhos' Reaction Balancer nor FFKC Training Hub shows ads.

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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.*