# HiWord.AI vs Formula Calculator Alpha

The clearest difference is in-app purchases: Formula Calculator Alpha at none against HiWord.AI's 1. HiWord.AI's advantage is update cadence (daily vs every 9 days) and iOS requirement (18.0 vs 26.2). On price, ads and device support there is nothing between them.

Both are free to download. HiWord.AI sells 1 in-app purchase, starting at $39.99 per year. Formula Calculator Alpha asks for nothing beyond the download.

HiWord.AI ships an update daily, Formula Calculator Alpha every 9 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | HiWord.AI | Formula Calculator Alpha |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Daily** | Every 9 days |
| Size | 63 MB | 3 MB |
| Requires iOS | **18.0** | 26.2 |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Vinehoo.com](https://appshunter.io/developer/537090737) | [子宸 魏](https://appshunter.io/developer/1890054508) |

## What reviewers say

### HiWord.AI

[App page](https://appshunter.io/ios/app/hiwordai/id6769323075)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support, iPhone Duo support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HiWord.AI Pro | $39.99 | per year |


### Formula Calculator Alpha

[App page](https://appshunter.io/ios/app/formula-calculator-alpha/id6775855674)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is HiWord.AI free?

HiWord.AI is free to download, with in-app purchases available.

### Is Formula Calculator Alpha free?

Formula Calculator Alpha is free to download, with no in-app purchases.

### Do HiWord.AI or Formula Calculator Alpha have ads?

Neither HiWord.AI nor Formula Calculator Alpha shows ads.

### Which is updated more often, HiWord.AI or Formula Calculator Alpha?

HiWord.AI ships an update daily, and Formula Calculator Alpha every 9 days. Most recently, HiWord.AI was updated on November 5, 2026 and Formula Calculator Alpha on October 31, 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.*