UPDATED 6 OCTOBER 2026
Your photos stay
with you.
The iPhone app
Sizelyt processes selected photos on your device. The developer does not receive your photos, file names, photo metadata or photo library. No account is required. There are no advertising, tracking or third-party analytics SDKs. The system photo picker provides only selected items; selected iCloud originals may be downloaded by Apple.
Temporary files and exports
Working copies are kept in the app’s temporary storage and cleared at the next fresh app launch or when you choose Settings → Clear working files and counts. Original photos remain untouched. Files you export to Files, Messages or another destination are controlled by that destination and its privacy policy. Output JPEGs are newly encoded without source GPS or EXIF metadata.
Purchases and diagnostics
Apple processes purchases. The app uses StoreKit to check Pro access and handle restoration. Apple may provide aggregated App Store analytics and crash reports according to your Apple privacy settings. The app keeps simple action counts locally; these contain no images, names or account identifiers. They are sent only if you deliberately share them through the system share sheet. Settings can clear them. Presets remain until replaced or the app is deleted.
If you choose to send these counts to our support address, we receive and retain the action summary, including completed-purchase counts, with your sender email address and message. We use this information only to help resolve your support request and delete it within 90 days after resolution, unless retention is legally required. You choose the sharing destination; information sent elsewhere is handled by that destination.
Free usage counts are stored only on your device and reset when its local date changes. The free allowance is 10 successful conversions per local day, one photo at a time. Re-converting a photo counts again. Only successfully written outputs count; failed, cancelled and Pro conversions do not. Pro has no daily allowance and supports up to 20 photos per batch. Clearing action counts does not reset the daily allowance. This offline counter is not an account-level or tamper-proof limit.
Support and this website
If you email support, we receive the address and content you send. Do not send sensitive photos. Support correspondence is used to answer your request and is deleted within 90 days after resolution unless retention is needed to meet a legal obligation. You can request deletion by email. This site has no application analytics scripts, advertising or contact forms. Its hosting provider may process network data such as IP addresses and request metadata to deliver and secure the site; authentication, if enabled by the host, is governed by the host’s policy.
Contact / お問い合わせ
Sizelyt support: zs432245@sc5.so-net.ne.jp
日本語
Sizelytは写真を端末内で処理し、開発者に画像やファイル名を送信しません。登録・広告・追跡SDKはありません。購入と利用権の確認はAppleのStoreKitを使います。Appleの設定に応じて、集計された利用・クラッシュ情報を確認する場合があります。
作業用コピーは新規起動時または設定内の消去操作で削除します。出力先に保存した写真は利用者が管理します。操作回数と無料利用数は端末内に保存し、自動送信しません。無料はローカル日付ごとに成功10枚までで、失敗・取消は数えず、同じ写真の再変換は再度数えます。無料利用数はローカル日付が変わるとリセットし、作業用ファイルや操作回数の消去では戻りません。Proは日次上限なし、1回20枚までです。保存した設定は上書きまたはアプリ削除まで保持します。
設定の操作回数をサポートメールへ任意共有した場合、成功した購入の回数を含む操作の集計を、送信元メールアドレス・本文とともに受け取り保持します。共有先は本人が選び、別の共有先へ送った情報はその共有先が管理します。受け取ったメールと任意共有の集計は問い合わせ対応にのみ利用し、法令上の保存義務がある場合を除き解決から90日以内に削除します。削除依頼も上記メールで受け付けます。このサイトの配信・保護に必要なネットワーク情報をホスティング事業者が処理する場合があります。