# NEXT DOOR TRAIN vs Grateful3

The clearest difference is iOS requirement: Grateful3 at 13.0 against NEXT DOOR TRAIN's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on October 5, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | NEXT DOOR TRAIN | Grateful3 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | Every 4 months |
| Size | 180 MB | 10 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [NEXT DOOR HV GmbH & Co. KG](https://appshunter.io/developer/6805401220) | [Moritz Naumann](https://appshunter.io/developer/1852991668) |

## What reviewers say

### NEXT DOOR TRAIN

[App page](https://appshunter.io/ios/app/next-door-train/id6443778168)

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

**In-app purchases:** none


### Grateful3

[App page](https://appshunter.io/ios/app/grateful3/id6755297756)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is NEXT DOOR TRAIN free?

NEXT DOOR TRAIN is free to download, with no in-app purchases.

### Is Grateful3 free?

Grateful3 is free to download, with no in-app purchases.

### Do NEXT DOOR TRAIN or Grateful3 have ads?

Neither NEXT DOOR TRAIN nor Grateful3 shows ads.

### Which is updated more often, NEXT DOOR TRAIN or Grateful3?

NEXT DOOR TRAIN ships an update every 4 months, and Grateful3 every 4 months. Most recently, NEXT DOOR TRAIN was updated on October 5, 2026 and Grateful3 on October 28, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*