# 히든젬 vs Noahlog

The clearest difference is in-app purchases: 히든젬 at none against Noahlog's 2. 히든젬 also leads on ads (none vs shown). Noahlog's advantage is update cadence (every 9 days vs every 2 months) and iOS requirement (13.0 vs 15.1). On price and device support there is nothing between them.

Both are free to download. Noahlog sells 2 in-app purchases, starting at $1.99 per month. 히든젬 asks for nothing beyond the download.

히든젬 ships an update every 2 months, Noahlog every 9 days. The most recent releases landed on October 17, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | 히든젬 | Noahlog |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 9 days** |
| Monetization | — | Free with in-app purchases |
| Size | 74 MB | 58 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [HiddenLab](https://appshunter.io/developer/1734560386) | [SEONGHUI HYEONG](https://appshunter.io/developer/1837311462) |

## What reviewers say

### 히든젬

[App page](https://appshunter.io/ios/app/id6478943422)

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

**In-app purchases:** none


### Noahlog

[App page](https://appshunter.io/ios/app/noahlog/id6751936256)

This app helps you understand how you spend your time with intuitive planning and visualization tools. Easily set up routines, track activities with a timer, and gain insights into your daily, weekly, and monthly patterns to foster long-term growth.

**Highlights:** Quick routine setup, One-tap activity start, Timer-based tracking, Weekly insights, Monthly insights, Visualize time patterns

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 월간 이용권 | $1.99 | per month |
| 연간 이용권 | $9.99 | per year |


## Frequently asked questions

### Is 히든젬 free?

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

### Is Noahlog free?

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

### Do 히든젬 or Noahlog have ads?

Noahlog shows ads; 히든젬 does not.

### Which is updated more often, 히든젬 or Noahlog?

히든젬 ships an update every 2 months, and Noahlog every 9 days. Most recently, 히든젬 was updated on October 17, 2026 and Noahlog on October 9, 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.*