# Chemical Engineering Formulate vs Focus Matrix

The clearest difference is review sentiment: Focus Matrix at 82% against Chemical Engineering Formulate's 0%. Focus Matrix also leads on price (Free vs $4.99) and iOS requirement (16.0 vs 18.6). Chemical Engineering Formulate's advantage is ads (none vs shown). On update cadence, in-app purchases and device support there is nothing between them.

Focus Matrix is free to download; Chemical Engineering Formulate costs $4.99 up front. Chemical Engineering Formulate sells 1 one-off in-app purchase and Focus Matrix sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Chemical Engineering Formulate ships an update every 8 months, Focus Matrix every 7 months. Both last shipped on October 23, 2026.

## The numbers

| Metric | Chemical Engineering Formulate | Focus Matrix |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | — | **[4.6 (1.6K ratings)](https://appshunter.io/ios/app/focus-matrix-task-manager/id1107872631/reviews)** |
| Number of ratings | — | **1.6K** |
| Positive reviews | 0.0% of reviews | **82.2% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 8 months | **Every 7 months** |
| Monetization | Paid | **Freemium** |
| Size | 19 MB | 33 MB |
| Requires iOS | 18.6 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Historycentral.com](https://appshunter.io/developer/1744330560) | [Denys Ievenko](https://appshunter.io/developer/427936468) |

## What reviewers say

### Chemical Engineering Formulate

[App page](https://appshunter.io/ios/app/chemical-engineering-formulate/id354670363)

This comprehensive reference tool provides over 1,500 formulas, calculators, and conversion charts for chemical engineering professionals and students. It covers a wide range of topics including heat transfer, fluid mechanics, and reaction kinetics, with support for both US and Metric units.

**Highlights:** 1,500+ formulas and calculators, 700+ engineering calculators, US/Metric unit toggle, Dual-unit display, Searchable reference tables, Offline functionality, Save and share calculations

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chemistry Pro | $3.99 | one-time |


### Focus Matrix

[App page](https://appshunter.io/ios/app/focus-matrix-task-manager/id1107872631)

Organize your tasks efficiently using a priority matrix based on urgency and importance. This app helps you focus on what truly matters by categorizing tasks and providing tools for scheduling, reminders, and detailed tracking. Sync across devices and export your lists for seamless productivity.

**Highlights:** Eisenhower Box priority matrix, Task categorization and sorting, Drag-and-drop task management, Due dates and reminders, Recurring tasks, Cross-device synchronization, Task export to PDF

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro | $2.99 | per month |
| Yearly Pro | $17.99 | per year |
| Lifetime Pro | $34.99 | one-time |

**What reviewers like**

- 🚀 Keeps me on track
- 👍 Easy to use
- 👍 Helps prioritize tasks
- 👍 Integrates well with calendar
- 👍 Simple and effective

**What reviewers complain about**

- 🐛 Sync issues across devices
- 🐛 Crashes and bugs
- 🔒 Security concerns with sync
- 💡 Need for more customization options
- 💡 Lacking recurring tasks

**Reported bugs**

- Sync issues causing data loss
- Frequent crashes
- Inability to log in across devices
- Calendar integration not working as expected

**Requested features**

- Ability to have multiple matrices (e.g. work, personal)
- Recurring tasks
- More export options (e.g. CSV)
- Dark mode
- Better sync reliability across devices


## Frequently asked questions

### Is Chemical Engineering Formulate free?

Chemical Engineering Formulate costs $4.99, and also offers in-app purchases.

### Is Focus Matrix free?

Focus Matrix is free to download, with in-app purchases available.

### Do Chemical Engineering Formulate or Focus Matrix have ads?

Focus Matrix shows ads; Chemical Engineering Formulate does not.

### Which is updated more often, Chemical Engineering Formulate or Focus Matrix?

Chemical Engineering Formulate ships an update every 8 months, and Focus Matrix every 7 months. Most recently, Chemical Engineering Formulate was updated on October 23, 2026 and Focus Matrix on October 23, 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.*