# Chemical Engineering Formulate vs Glacier App

The clearest difference is review sentiment: Glacier App at 61% against Chemical Engineering Formulate's 0%. Glacier App also leads on price (Free vs $4.99) and update cadence (weekly vs every 8 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Glacier App is free to download; Chemical Engineering Formulate costs $4.99 up front. Chemical Engineering Formulate sells 1 one-off in-app purchase and Glacier App sells 6 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Chemical Engineering Formulate ships an update every 8 months, Glacier App weekly. The most recent releases landed on October 6, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Chemical Engineering Formulate | Glacier App |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | — | **[4.3 (290 ratings)](https://appshunter.io/ios/app/glacier-app/id6776005049/reviews)** |
| Number of ratings | — | **290** |
| Positive reviews | 0.0% of reviews | **61.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Weekly** |
| Monetization | **Paid** | Subscription |
| Best chart rank | — | **#65** |
| Size | 19 MB | 66 MB |
| Requires iOS | 18.6 | **18.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Historycentral.com](https://appshunter.io/developer/1744330560) | [Security App LLC](https://appshunter.io/developer/6776005051) |

## 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 |


### Glacier App

[App page](https://appshunter.io/ios/app/glacier-app/id6776005049)

**Currently charting:** #65 Top Grossing · Productivity, #189 Top Free · Productivity (US App Store)

Enhance your mobile privacy with advanced security features. Protect your connection with VPN and DNS security, block trackers and ads, and receive real-time threat alerts. Secure your communications and browse privately without compromising daily usability.

**Highlights:** VPN and DNS protection, Tracker and ad blocking, Real-time threat alerts, Device tampering detection, Secure calling with alternate numbers, Privacy-focused design

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Line | $4.99 | per month |
| 2 Lines | $8.99 | per month |
| Monthly | $14.99 | per month |
| 5 Lines | $19.99 | per month |
| Yearly | $159.99 | per year |
| Additional Phone Number | $2.99 | one-time |


## Frequently asked questions

### Is Chemical Engineering Formulate free?

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

### Is Glacier App free?

Glacier App is free to download, with in-app purchases available.

### Do Chemical Engineering Formulate or Glacier App have ads?

Neither Chemical Engineering Formulate nor Glacier App shows ads.

### Which is updated more often, Chemical Engineering Formulate or Glacier App?

Chemical Engineering Formulate ships an update every 8 months, and Glacier App weekly. Most recently, Chemical Engineering Formulate was updated on October 6, 2026 and Glacier App on October 15, 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.*