# HPLC Calculator vs Grok

The clearest difference is ads: Grok at none against HPLC Calculator's shown. Grok also leads on update cadence (every 2 days vs every 5 weeks) and chart position (#3 vs unranked). HPLC Calculator's advantage is iOS requirement (13.0 vs 17). On price, in-app purchases and device support there is nothing between them.

Both are free to download. HPLC Calculator sells 6 in-app purchases, starting at $0.59 per month and Grok sells 11 in-app purchases, starting at $10.00 per month. Whichever you choose, the download price is not the number that matters.

HPLC Calculator ships an update every 5 weeks, Grok every 2 days. The most recent releases landed on October 27, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | HPLC Calculator | Grok |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (1.6M ratings)](https://appshunter.io/ios/app/grok/id6670324846/reviews)** |
| Number of ratings | — | **1.6M** |
| Positive reviews | — | 71.6% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Every 2 days** |
| Monetization | — | Free |
| Best chart rank | — | **#3** |
| Size | 66 MB | 182 MB |
| Requires iOS | **13.0** | 17 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Youhana Mehany](https://appshunter.io/developer/1600330996) | [X Corp.](https://appshunter.io/developer/296415947) |

## What reviewers say

### HPLC Calculator

[App page](https://appshunter.io/ios/app/hplc-calculator/id1600330994)

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.59 | per month |
| Remove Ads | $4.99 | per year |
| 50K Token Top-Up | $2.99 | one-time |
| 100K Token Top-Up | $4.99 | one-time |
| 250K Token Top-Up | $9.99 | one-time |
| 500K Token Top-Up | $12.99 | one-time |


### Grok

[App page](https://appshunter.io/ios/app/grok/id6670324846)

**Currently charting:** #3 Top Grossing · Productivity, #6 Top Free · Productivity, #23 Top Grossing, #49 Top Free (US App Store)

This AI assistant provides truthful, useful, and curious responses, aiding in research, creation, and real-time understanding. It offers advanced image and video generation, voice conversations, and access to current information from X.

**Highlights:** AI-powered conversations, Web and X real-time data access, AI image and video generation, Voice interaction mode, Context transfer from other AI tools, Coding and problem-solving assistance

**Features:** Vision Pro support

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SuperGrok Lite | $10.00 | per month |
| SuperGrok | $30.00 | per month |
| SuperGrok Plus | $100.00 | per month |
| SuperGrok Lite | $100.00 | per year |
| SuperGrok Heavy | $300.00 | per month |
| SuperGrok | $300.00 | per year |
| SuperGrok Plus | $1000.00 | per year |
| Extra Usage Credits 5 USD | $5.00 | one-time |
| Extra Usage Credits 20 USD | $20.00 | one-time |
| Extra Usage Credits 50 USD | $50.00 | one-time |
| Extra Usage Credits 100 USD | $100.00 | one-time |

**What reviewers like**

- 🚀 Fast and efficient
- 🔒 Unbiased and ethical
- 👍 Clean and intuitive UI
- 🤖 Powerful AI capabilities
- 🌐 Real-time data integration

**What reviewers complain about**

- 🐛 Occasional errors in responses
- 🔍 Needs more robust search/history features
- 🔌 Requires X account for full functionality

**Reported bugs**

- Login issues with X account integration
- Inaccurate chess move suggestions

**Requested features**

- Integrate chat history across X and Grok apps
- Add user profile customization for personalized image generation
- Expand iOS integration (widgets, Apple Watch support)
- Introduce custom model/prompt creation like ChatGPT


## Frequently asked questions

### Is HPLC Calculator free?

HPLC Calculator is free to download, with in-app purchases available.

### Is Grok free?

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

### Do HPLC Calculator or Grok have ads?

HPLC Calculator shows ads; Grok does not.

### Which is updated more often, HPLC Calculator or Grok?

HPLC Calculator ships an update every 5 weeks, and Grok every 2 days. Most recently, HPLC Calculator was updated on October 27, 2026 and Grok on November 1, 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.*