# BISOFT vs Stoichiometric equations

The clearest difference is update cadence: Stoichiometric equations at every 3 months against BISOFT's every 19 months. BISOFT's advantage is iOS requirement (12.1 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

BISOFT ships an update every 19 months, Stoichiometric equations every 3 months. The most recent releases landed on November 7, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | BISOFT | Stoichiometric equations |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 19 months | **Every 3 months** |
| Size | 22 MB | 17 MB |
| Requires iOS | **12.1** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 9+ |
| Developer | [Evobi Automations Pvt Ltd](https://appshunter.io/developer/1496588194) | [Peter Sauer](https://appshunter.io/developer/1789152060) |

## What reviewers say

### BISOFT

[App page](https://appshunter.io/ios/app/bisoft/id1502691525)

**Features:** macOS Compatibility

**In-app purchases:** none


### Stoichiometric equations

[App page](https://appshunter.io/ios/app/stoichiometric-equations/id6740244756)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is BISOFT free?

BISOFT is free to download, with no in-app purchases.

### Is Stoichiometric equations free?

Stoichiometric equations is free to download, with no in-app purchases.

### Do BISOFT or Stoichiometric equations have ads?

Neither BISOFT nor Stoichiometric equations shows ads.

### Which is updated more often, BISOFT or Stoichiometric equations?

BISOFT ships an update every 19 months, and Stoichiometric equations every 3 months. Most recently, BISOFT was updated on November 7, 2026 and Stoichiometric equations on November 8, 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.*