OFFON(オフォン) vs GraySNS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OFFON(オフォン)
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【OFFONカーシェアリング】 加賀市の脱炭素につながる、電気自動車専用のカーシェアリング「OFFON(オフォン)」の公式アプリです。 EVシェアリングの新しいスタイル。 市役所のOFFに、ONになるクルマ。 平日の夜・土日・祝日に公用EV(電気自動車)を誰もがスマホでレンタルできます。 ■アプリの特徴 ・地図から利用できる車を検索 ・利用時点で走行できる距離を表示 ・車の予約、解錠、予約の変更、キャンセル、延長、返却 ・利用履歴、料金の確認 ・お知らせ、キャンペーン等の確認 ■こんな方にオススメ ・加賀市内に住んでいて、クリーンなカーライフにこだわりたい ・電気自動車に乗ってみたい ・加賀市内でのちょっとした移動に使いたい ・加賀市内での観光や出張の足が欲しい ・レンタカーが借りれない時間帯(深夜・早朝)にも使いたい ■ご注意事項 ご利用の際には、ご本人の免許証画像データのアップロードとクレジットカードの登録が必要となります。 ■OFFON 公式Webサイト https://offon.kagashi-ss.com
GraySNS
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GraySNS is a self-management app that reduces the stimulation of selected SNS apps by opening them in grayscale instead of keeping them completely blocked. Choose the SNS apps you tend to overuse, show a Screen Time shield before opening them, then enter in low-stimulus grayscale mode. The app also helps you check usage-time changes before and after setup. Main features: - Show a Screen Time shield on selected SNS apps - Open selected apps in grayscale - Monitor usage time for target apps - Compare usage time before and after setup - Re-shield after closing apps with Shortcuts automation GraySNS is informed by research suggesting that grayscale smartphone display may help reduce usage time. It does not guarantee a specific result and is not a medical app. GraySNS Pro starts with a 1-week free trial. After the trial, it renews monthly. Pricing, trial length, and renewal dates shown on the App Store confirmation screen take precedence. You can cancel anytime from App Store subscription settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Selected apps and categories are handled on-device through Apple's FamilyControls, ManagedSettings, and DeviceActivity frameworks. GraySNS does not collect post content, browsing content, or message text.
Screenshots
Verdict
The clearest difference is in-app purchases: OFFON(オフォン) at none against GraySNS's 1. OFFON(オフォン) also leads on iOS requirement (14.0 vs 26.2). GraySNS's advantage is update cadence (fortnightly vs every 2 months). On price, 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. GraySNS sells 1 in-app purchase, starting at $0.99 per month. OFFON(オフォン) asks for nothing beyond the download.
OFFON(オフォン) ships an update every 2 months, GraySNS fortnightly. The most recent releases landed on September 20, 2026 and June 25, 2026 respectively.
| Parameter | OFFON(オフォン) | GraySNS |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 14.0 — better | 26.2 |
| Further details — not scored | ||
| Size | 39 MB | 17 MB |
| Age rating | 17+ | 4+ |
| Developer | REXEV Inc. | Hiroyuki Aratame |
In-app purchases
OFFON(オフォン)
No in-app purchases
GraySNS
- Pro7 Days trial$0.991 Month





