Watermarking · On-device · Retro

Your signature. On every photo. Never on a server.

InkStamp is a small iOS app that lets you watermark photos the way old photo labs used to: fast, tactile, and with character. Single photos, whole shoots, or invisible marks that survive screenshots — every pixel is processed on your iPhone.

Features

Built for people who care where their photos go

Signature Editor

Layer text, logos, and retro decor effects. Font, tint, rotation, and opacity — all controlled from a single panel.

Batch Stamp

Drop in an entire shoot, pick one preset, and export the lot in one tap. Free up to three images, Pro for unlimited.

Invisible Mark

Embed an imperceptible watermark that persists across crops and screenshots, verifiable from the InkStamp detector.

Template Library

Save your go-to stamps so every export stays on brand, without re-adjusting the rotation for the hundredth time.

Private by default

No sign-in. No analytics. No photos uploaded. Purchases go through Apple — we never see your card or your Apple ID.

Retro by design

Cream paper, coral ink, mint accents. Because professional tools should feel good to use, not just effective.

Pricing

Simple, transparent Pro plans

Monthly

¥2.99 / month. Auto-renewing subscription. Unlocks every Pro feature including invisible watermarks and unlimited batch exports.

Yearly · best value

US$9.99 / year. Auto-renewing subscription. Same feature set as monthly, renewed once a year.

Lifetime

US$19.99, one-time. Non-consumable purchase that never expires and restores free of charge on any device signed into the same Apple ID.

All prices are billed through Apple. Manage or cancel any time in iOS Settings → Apple ID → Subscriptions. See Terms of Use for full auto-renewal disclosures.

Support

Get in touch

Something broken, or a preset you wish existed? Send us a note — real humans read every email.

[email protected]