# Japan Mt.100 vs OnTrails

The clearest difference is in-app purchases: Japan Mt.100 at none against OnTrails's 1. Japan Mt.100 also leads on ads (none vs shown) and iOS requirement (7.1 vs 13.0). OnTrails's advantage is update cadence (every 4 days vs monthly). On price and device support there is nothing between them.

Both are free to download. OnTrails sells 1 in-app purchase, starting at $0.99 per month. Japan Mt.100 asks for nothing beyond the download.

Japan Mt.100 ships an update monthly, OnTrails every 4 days. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Japan Mt.100 | OnTrails |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ontrails/id6477734046/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 4 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 32 MB | 58 MB |
| Requires iOS | **7.1** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [MAKOTO SASAKI](https://appshunter.io/developer/908850577) | [ONTRAILS](https://appshunter.io/developer/1570756171) |

## What reviewers say

### Japan Mt.100

[App page](https://appshunter.io/ios/app/japan-mt100/id951370765)

Track your ascents of Japan's famous mountains. Record your climbs, add diary entries, and save photos of your journey. Export your data or back it up to iCloud.

**Highlights:** Climb and record ascents, Confirm location near summit, Climbing diary entries, Save journey memories with photos, Export climbing data (CSV), iCloud backup

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

**In-app purchases:** none


### OnTrails

[App page](https://appshunter.io/ios/app/ontrails/id6477734046)

Navigate remote trails with confidence using this offline GPS app. Download maps in advance for reliable navigation without cell service, track your routes, and receive directional guidance to your destination. Ideal for hikers and trekkers in any environment.

**Highlights:** Offline map downloads, Lock-on navigation with direction and distance, Automatic route recording, Real-time coordinate, elevation, and speed display, GPX file export, Multiple map types

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Plan | $0.99 | per month |


## Frequently asked questions

### Is Japan Mt.100 free?

Japan Mt.100 is free to download, with no in-app purchases.

### Is OnTrails free?

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

### Do Japan Mt.100 or OnTrails have ads?

OnTrails shows ads; Japan Mt.100 does not.

### Which is updated more often, Japan Mt.100 or OnTrails?

Japan Mt.100 ships an update monthly, and OnTrails every 4 days. Most recently, Japan Mt.100 was updated on November 1, 2026 and OnTrails on November 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.*