# HoLaTeX vs GPT Realtime Assistant

The clearest difference is iOS requirement: HoLaTeX at 16.6 against GPT Realtime Assistant's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. HoLaTeX sells 1 in-app purchase, starting at $23.95 per year and GPT Realtime Assistant sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

HoLaTeX ships an update every 2 months, GPT Realtime Assistant every 3 months. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | HoLaTeX | GPT Realtime Assistant |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/holatex/id6458879810/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Freemium | — |
| Size | 1.3 GB | 64 MB |
| Requires iOS | **16.6** | 26.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [BML Solutions Inc.](https://appshunter.io/developer/349426067) | [Arte Soft Ltd](https://appshunter.io/developer/1750513209) |

## What reviewers say

### HoLaTeX

[App page](https://appshunter.io/ios/app/holatex/id6458879810)

A secure, offline LaTeX editor for iOS and iPadOS that compiles documents directly on your device. It supports multiple compilers and offers features like syntax highlighting and iCloud integration for seamless workflow.

**Highlights:** Local and secure LaTeX compilation, Offline usage, Multiple compiler options (PdfTeX, XeTeX), Syntax highlighting and line numbers, iCloud integration, Share TEX and PDF files

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $23.95 | per year |


### GPT Realtime Assistant

[App page](https://appshunter.io/ios/app/gpt-realtime-assistant/id6770536523)

**Features:** Vision Pro support, iPhone Duo support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly GPT Assistant | $9.99 | per month |
| 1,000 Credits | $4.99 | one-time |
| 5,000 Credits | $19.99 | one-time |


## Frequently asked questions

### Is HoLaTeX free?

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

### Is GPT Realtime Assistant free?

GPT Realtime Assistant is free to download, with in-app purchases available.

### Do HoLaTeX or GPT Realtime Assistant have ads?

Neither HoLaTeX nor GPT Realtime Assistant shows ads.

### Which is updated more often, HoLaTeX or GPT Realtime Assistant?

HoLaTeX ships an update every 2 months, and GPT Realtime Assistant every 3 months. Most recently, HoLaTeX was updated on November 3, 2026 and GPT Realtime Assistant on November 5, 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.*