# 1分の習慣 vs WhyLens

The clearest difference is in-app purchases: 1分の習慣 at none against WhyLens's 2. WhyLens's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 16.4). On price, update cadence and ads there is nothing between them.

Both are free to download. WhyLens sells 2 in-app purchases, starting at $2.99 per month. 1分の習慣 asks for nothing beyond the download.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 12, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | 1分の習慣 | WhyLens |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Size | 46 MB | 58 MB |
| Requires iOS | 16.4 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [YUYA MASUDA](https://appshunter.io/developer/1840203331) | [Alex Naumov](https://appshunter.io/developer/1886627669) |

## What reviewers say

### 1分の習慣

[App page](https://appshunter.io/ios/app/1/id6758957376)

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

**In-app purchases:** none


### WhyLens

[App page](https://appshunter.io/ios/app/whylens-decision-tracker/id6761038255)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| WhyLens Pro Monthly | $2.99 | per month |
| WhyLens Pro Yearly | $19.99 | per year |


## Frequently asked questions

### Is 1分の習慣 free?

1分の習慣 is free to download, with no in-app purchases.

### Is WhyLens free?

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

### Do 1分の習慣 or WhyLens have ads?

Neither 1分の習慣 nor WhyLens shows ads.

### Which is updated more often, 1分の習慣 or WhyLens?

1分の習慣 ships an update monthly, and WhyLens monthly. Most recently, 1分の習慣 was updated on October 12, 2026 and WhyLens on October 7, 2026.

---

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