# Natparks vs Postmark

The clearest difference is in-app purchases: Natparks at none against Postmark's 1. Natparks also leads on iOS requirement (14.0.0 vs 17.6). Postmark's advantage is update cadence (every 2 days vs every 10 days). On price, ads and device support there is nothing between them.

Both are free to download. Postmark sells 1 in-app purchase, starting at $9.99 per year. Natparks asks for nothing beyond the download.

Natparks ships an update every 10 days, Postmark every 2 days. The most recent releases landed on November 3, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Natparks | Postmark |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (138 ratings)](https://appshunter.io/ios/app/natparks/id6452385715/reviews)** | — |
| Number of ratings | **138** | — |
| Positive reviews | 84.8% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 2 days** |
| Monetization | Free | — |
| Size | 65 MB | 7 MB |
| Requires iOS | **14.0.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Natparks Community](https://appshunter.io/developer/1690909058) | [KIENY KWAN](https://appshunter.io/developer/1812131057) |

## What reviewers say

### Natparks

[App page](https://appshunter.io/ios/app/natparks/id6452385715)

Plan your National Park adventures with up-to-date information and personalized tips. Track your past visits, earn achievements in your digital passport, and get answers to your park-related questions from an AI Ranger.

**Highlights:** National Park trip planning, Latest park info and tips, Record past trips, AI Ranger for questions, Digital passport with achievements, Track hikes, viewpoints, photos

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

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use interface
- 💡 AI suggestions for trips
- 🖼️ Beautiful color illustrations
- 🗺️ Great for planning trips
- 📸 Ability to save photos

**What reviewers complain about**

- 🐛 Freezes on gray screen
- 🐛 App keeps closing
- 📱 UI issues on smaller screens
- ⚠️ Confusing update notifications

**Reported bugs**

- App freezes when creating trip plans
- App closes unexpectedly during trip research/booking
- Confusing notifications from beta test app

**Requested features**

- Allow reordering of pictures without deleting
- Added features


### Postmark

[App page](https://appshunter.io/ios/app/postmark-trips-and-diary/id6779943949)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Postmark - Premium Annual | $9.99 | per year |


## Frequently asked questions

### Is Natparks free?

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

### Is Postmark free?

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

### Do Natparks or Postmark have ads?

Neither Natparks nor Postmark shows ads.

### Which is updated more often, Natparks or Postmark?

Natparks ships an update every 10 days, and Postmark every 2 days. Most recently, Natparks was updated on November 3, 2026 and Postmark on October 11, 2026.

---

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