# Stoichio: Chemistry Calculator — Solve Chemistry Without AI

> Pocket chemistry calculator for solving complex chemical problems and learning fundamentals. (iPhone/iPad app by Charlie Rubsamen.)

- Source: https://appshunter.io/ios/app/stoichio-chemistry-calculator/id6809663324 (this page in markdown: same URL + `.md`)
- Developer: [Charlie Rubsamen](https://appshunter.io/developer/6809663326)
- Category: Education, Reference
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 17.5 · 1 MB
- Languages: American English
- Released: 2026-10-17
- Data updated: 2026-10-26
- Monetization: free

## What is Stoichio?

Stoichio is a comprehensive pocket chemistry calculator that solves problems from titrations to gas laws in seconds! 

Type the data you’re given, leave blank what you want to solve for, and the answer will automatically appear as you type. 

Students can dynamically tackle complex chemical systems in a matter of seconds. 

Change environmental conditions and see the chemical outcome update in real time. 

With Stoichio, you can focus on learning the fundamentals of chemistry without getting bogged down in computation.

Stoichio is NOT an AI product. It’s a traditionally programmed calculator that allows students to apply their own analytical thinking to difficult problems, instead of relying on skimming a natural language explanation for a solution. 

Stoichio aims to provide students of chemistry what the graphing calculator has for calculus.

Features:
• Determine empirical & molecular formulas
• Heating & cooling curve calculations
• Ideal gas law calculations (with density functionality)
• Gas law ratio calculations (Boyle’s, Charles’, etc.)
• Calorimetry
• Galvanic cells with bar notation, E°cell, and ΔG°
• Electrolytic stoichiometry
• Differential & integrated rate laws and kinetics calculations
• Predict products & balance chemical reactions
• Supports synthesis, decomposition, single replacement, double replacement, and combustion reactions
• Recognizes polyatomic ions and transition metal oxidation states
• Stoichiometric calculations with limiting reactants & excess accounted for
• Precipitation reactions & solubility equilibria
• Acid-base reactions & full titrations
• Cation & anion salt hydrolysis at weak equivalence points

All these tools are combined in a single, accessible format for users of all backgrounds.

Everybody loves chemistry, most people just don’t know it yet!

## Key features

- Solves titrations, gas laws, and more
- Real-time outcome updates
- Empirical & molecular formula determination
- Ideal gas law calculations
- Calorimetry and galvanic cell calculations
- Predicts products & balances reactions
- Acid-base reactions and titrations

## Is Stoichio safe?

Not enough ratings yet to assess Stoichio.

## Is Stoichio legit?

Stoichio: Chemistry Calculator has limited verification signals. The AppsHunter Legitimacy Score for Stoichio is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Frequently asked questions about Stoichio

### What kind of chemistry problems can Stoichio solve?

Stoichio can solve a wide range of chemistry problems, including titrations, gas laws, empirical and molecular formulas, calorimetry, galvanic cells, and predicting/balancing chemical reactions.

### How does Stoichio help with learning chemistry?

By providing instant solutions and real-time updates for environmental changes, Stoichio allows students to focus on understanding the underlying chemical principles without getting bogged down in complex calculations.

### Is Stoichio an AI-powered tool?

No, Stoichio is not an AI product. It is a traditionally programmed calculator designed to help students apply their analytical thinking to problems.

### What devices is Stoichio available on?

Stoichio is currently available on iPhone devices.

### What is the age rating for Stoichio?

Stoichio has an age rating of 4+, making it suitable for a wide range of users.

### How often is Stoichio updated?

Stoichio was last updated on October 17, 2026, with version 1.0. Further update frequency is not specified.

### Does Stoichio have ads?

No, Stoichio does not contain advertisements.

### What is the user rating for Stoichio?

Stoichio has a perfect rating of 5.0 stars based on 1 review.

## Version history (last 1 release)

### 1.0 — 2026-10-17

No release notes.

## Related topics

[chemistry calculator](https://appshunter.io/ios/topics/chemistry-calculator)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-26.*