# Grammar Express Question Tag vs Aporia

The clearest difference is update cadence: Aporia at every 3 days against Grammar Express Question Tag's every 4 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Grammar Express Question Tag sells 1 one-off in-app purchase and Aporia sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Grammar Express Question Tag ships an update every 4 months, Aporia every 3 days. The most recent releases landed on October 23, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Grammar Express Question Tag | Aporia |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (2 ratings)](https://appshunter.io/ios/app/grammar-express-question-tag/id370144113/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 days** |
| Monetization | Free | — |
| Size | 9 MB | 100 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Webrich Software Limited](https://appshunter.io/developer/290203591) | [Omar Esteban Corona Mindiola](https://appshunter.io/developer/6792977786) |

## What reviewers say

### Grammar Express Question Tag

[App page](https://appshunter.io/ios/app/grammar-express-question-tag/id370144113)

Master the art of using question tags in everyday conversations with this comprehensive grammar course. It offers detailed lessons, numerous examples, and interactive quizzes with real-time feedback to improve your understanding and response times.

**Highlights:** 13+ pages of grammar lessons and rules, Over 69 examples, 500+ multiple-choice questions, Detailed test results with explanations, Retry missed questions module, Customizable timer settings, Randomized questions

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Grammar Express QT Full Version | $0.99 | one-time |


### Aporia

[App page](https://appshunter.io/ios/app/aporia-math-and-physics/id6792977784)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Aporia Premium | $9.99 | per month |
| Aporia Premium | $99.99 | per year |


## Frequently asked questions

### Is Grammar Express Question Tag free?

Grammar Express Question Tag is free to download, with in-app purchases available.

### Is Aporia free?

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

### Do Grammar Express Question Tag or Aporia have ads?

Neither Grammar Express Question Tag nor Aporia shows ads.

### Which is updated more often, Grammar Express Question Tag or Aporia?

Grammar Express Question Tag ships an update every 4 months, and Aporia every 3 days. Most recently, Grammar Express Question Tag was updated on October 23, 2026 and Aporia on October 4, 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.*