# SUNDAY MOUNTAIN サンデーマウンテン公式アプリ vs FLEX デジタル会員証アプリ

The clearest difference is iOS requirement: FLEX デジタル会員証アプリ at 13.0 against SUNDAY MOUNTAIN サンデーマウンテン公式アプリ's 15.1. 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 monthly. The most recent releases landed on July 23, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | SUNDAY MOUNTAIN サンデーマウンテン公式アプリ | FLEX デジタル会員証アプリ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Size | 34 MB | 43 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 9+ | 4+ |
| Developer | [CAMPANELA CO.,LTD.](https://appshunter.io/developer/1742491703) | [FLEX](https://appshunter.io/developer/471030536) |

## What reviewers say

### SUNDAY MOUNTAIN サンデーマウンテン公式アプリ

[App page](https://appshunter.io/ios/app/sunday-mountain/id6499114331)

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

**In-app purchases:** none


### FLEX デジタル会員証アプリ

[App page](https://appshunter.io/ios/app/flex/id6760095357)

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

**In-app purchases:** none


## Frequently asked questions

### Is SUNDAY MOUNTAIN サンデーマウンテン公式アプリ free?

SUNDAY MOUNTAIN サンデーマウンテン公式アプリ is free to download, with no in-app purchases.

### Is FLEX デジタル会員証アプリ free?

FLEX デジタル会員証アプリ is free to download, with no in-app purchases.

### Do SUNDAY MOUNTAIN サンデーマウンテン公式アプリ or FLEX デジタル会員証アプリ have ads?

Neither SUNDAY MOUNTAIN サンデーマウンテン公式アプリ nor FLEX デジタル会員証アプリ shows ads.

### Which is updated more often, SUNDAY MOUNTAIN サンデーマウンテン公式アプリ or FLEX デジタル会員証アプリ?

SUNDAY MOUNTAIN サンデーマウンテン公式アプリ ships an update monthly, and FLEX デジタル会員証アプリ monthly. Most recently, SUNDAY MOUNTAIN サンデーマウンテン公式アプリ was updated on July 23, 2026 and FLEX デジタル会員証アプリ on September 24, 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.*