LensCycle vs Bye Bye Slouch
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LensCycle
Read full descriptionHide full description
LensCycle はコンタクトレンズの交換日を迷わず管理できるシンプルなアプリです。 2week／1month からレンズタイプを選択すると、推奨交換周期を自動で設定。 通知時刻とタイミング（前日・3日前・1週間前）をチップ感覚で切り替えれば、予定日に向けたリマインダーを一括で準備できます。 カレンダーで交換した日をタップするだけで、直近・次回の交換日がハイライト表示され、通知スケジュールも即座に再計算。 初回起動時はチュートリアルが操作手順をステップごとに案内し、誰でも数十秒でセットアップ可能。 毎日の視界をクリアに保つための「替え忘れ防止ツール」として、忙しい日でも確実にレンズを交換したい方におすすめです。
Bye Bye Slouch
Read full descriptionHide full description
Slip your phone into your chest pocket and it gently alerts you when you start to slouch. With the phone right at your chest, you won’t miss the vibration. Start improving your posture with just 5 minutes a day.
Screenshots
Verdict
The clearest difference is in-app purchases: LensCycle at none against Bye Bye Slouch's 1. On price, update cadence, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Bye Bye Slouch sells 1 one-off in-app purchase. LensCycle asks for nothing beyond the download.
LensCycle ships an update every 2 days, Bye Bye Slouch every 3 days. The most recent releases landed on September 8, 2026 and September 7, 2026 respectively.
| Parameter | LensCycle | Bye Bye Slouch |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 days — better | Every 3 days |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 5 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Yukio Sakakibara | Karin Kanemura |
In-app purchases
LensCycle
No in-app purchases
Bye Bye Slouch
- 無音version解禁$1.99
