# コンタクト交換リマインダー vs Lens Manager

The clearest difference is in-app purchases: コンタクト交換リマインダー at none against Lens Manager's 5. コンタクト交換リマインダー also leads on iOS requirement (12.0 vs 15.0). Lens Manager's advantage is update cadence (every 4 weeks vs every 35 months). On price, ads and device support there is nothing between them.

Both are free to download. Lens Manager sells 5 in-app purchases, starting at $4.49 per month. コンタクト交換リマインダー asks for nothing beyond the download.

コンタクト交換リマインダー ships an update every 35 months, Lens Manager every 4 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | コンタクト交換リマインダー | Lens Manager |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/lens-manager/id6470110511/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 14.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 35 months | **Every 4 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 36 MB | 65 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Tomoki Yabuuchi](https://appshunter.io/developer/1367124699) | [Yuichi Ishibashi](https://appshunter.io/developer/1712989739) |

## What reviewers say

### コンタクト交換リマインダー

[App page](https://appshunter.io/ios/app/id1434428236)

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

**In-app purchases:** none


### Lens Manager

[App page](https://appshunter.io/ios/app/lens-manager/id6470110511)

Never forget your contact lens replacement day again. This app provides smart reminders and tracking for 1-week, 2-week, and 1-month lenses, with options for separate tracking per eye. Premium features offer advanced reminders and home screen widgets.

**Highlights:** Contact lens replacement schedule tracking, Replacement day reminder notifications, Separate tracking for left and right lenses, Supports 1-week, 2-week, and 1-month lenses, Home screen widget, Contact lens information management

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly Plan | $4.49 | per month |
| Premium Annual Plan | $29.99 | per year |
| Support the app | $2.99 | one-time |
| Support the app | $5.99 | one-time |
| Support the app | $19.99 | one-time |


## Frequently asked questions

### Is コンタクト交換リマインダー free?

コンタクト交換リマインダー is free to download, with no in-app purchases.

### Is Lens Manager free?

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

### Do コンタクト交換リマインダー or Lens Manager have ads?

Both コンタクト交換リマインダー and Lens Manager show ads.

### Which is updated more often, コンタクト交換リマインダー or Lens Manager?

コンタクト交換リマインダー ships an update every 35 months, and Lens Manager every 4 weeks. Most recently, コンタクト交換リマインダー was updated on November 2, 2026 and Lens Manager on November 3, 2026.

---

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