# 陣痛タイマー by ぴよログ vs Lency

The clearest difference is in-app purchases: 陣痛タイマー by ぴよログ at none against Lency's 1. 陣痛タイマー by ぴよログ also leads on ads (none vs shown) and update cadence (every 3 weeks vs every 2 months). On price and device support there is nothing between them.

Both are free to download. Lency sells 1 in-app purchase, starting at $0.99 per month. 陣痛タイマー by ぴよログ asks for nothing beyond the download.

陣痛タイマー by ぴよログ ships an update every 3 weeks, Lency every 2 months. The most recent releases landed on October 15, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | 陣痛タイマー by ぴよログ | Lency |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 84.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Ad-supported | — |
| Size | 21 MB | 10 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [PiyoLog Inc.](https://appshunter.io/developer/440099912) | [Shogo Matsumoto](https://appshunter.io/developer/1878990313) |

## What reviewers say

### 陣痛タイマー by ぴよログ

[App page](https://appshunter.io/ios/app/by/id1486291787)

This app helps expectant mothers easily track labor contractions by simply tapping buttons. It records duration and intervals, allowing for seamless sharing of real-time updates with partners and family. Prepare for childbirth with this user-friendly tool.

**Highlights:** Contraction timer and interval counter, One-tap recording of contractions, Real-time sharing with family, Push notifications for contraction start, History log with editing capabilities, Easy-to-understand interface

**In-app purchases:** none


### Lency

[App page](https://appshunter.io/ios/app/lency/id6772739077)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $0.99 | per month |


## Frequently asked questions

### Is 陣痛タイマー by ぴよログ free?

陣痛タイマー by ぴよログ is free to download, with no in-app purchases.

### Is Lency free?

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

### Do 陣痛タイマー by ぴよログ or Lency have ads?

Lency shows ads; 陣痛タイマー by ぴよログ does not.

### Which is updated more often, 陣痛タイマー by ぴよログ or Lency?

陣痛タイマー by ぴよログ ships an update every 3 weeks, and Lency every 2 months. Most recently, 陣痛タイマー by ぴよログ was updated on October 15, 2026 and Lency on October 5, 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.*