# GRE Prep & Test vs AllTheStops

The clearest difference is in-app purchases: AllTheStops at none against GRE Prep & Test's 3. AllTheStops also leads on update cadence (every 5 days vs every 3 months). GRE Prep & Test's advantage is iOS requirement (12.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. GRE Prep & Test sells 3 in-app purchases, starting at $4.99 per month. AllTheStops asks for nothing beyond the download.

GRE Prep & Test ships an update every 3 months, AllTheStops every 5 days. The most recent releases landed on October 4, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | GRE Prep & Test | AllTheStops |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/allthestops/id6743722796/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 days** |
| Monetization | — | Free |
| Size | 23 MB | 12 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [学勇 张](https://appshunter.io/developer/590340880) | [YANJIANG LIU](https://appshunter.io/developer/1612932283) |

## What reviewers say

### GRE Prep & Test

[App page](https://appshunter.io/ios/app/gre-prep-and-test/id6497226277)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MONTHLY | $4.99 | per month |
| 3 MONTHS | $9.99 | per 3 months |
| YEARLY | $19.99 | per year |


### AllTheStops

[App page](https://appshunter.io/ios/app/allthestops/id6743722796)

Explore pipe organs globally with AI-powered discovery. Save your favorites, view detailed stoplists and photos, and share your finds with friends. This app provides access to publicly available organ data.

**Highlights:** AI-powered organ discovery, Save favorite organs, Explore stoplists, Browse organ photos, Share discoveries with friends, Access public organ data

**Features:** Safari Extension

**In-app purchases:** none


## Frequently asked questions

### Is GRE Prep & Test free?

GRE Prep & Test is free to download, with in-app purchases available.

### Is AllTheStops free?

AllTheStops is free to download, with no in-app purchases.

### Do GRE Prep & Test or AllTheStops have ads?

Neither GRE Prep & Test nor AllTheStops shows ads.

### Which is updated more often, GRE Prep & Test or AllTheStops?

GRE Prep & Test ships an update every 3 months, and AllTheStops every 5 days. Most recently, GRE Prep & Test was updated on October 4, 2026 and AllTheStops on October 12, 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.*