# Photo Ma Ma — Add Watermarks, Protect Photos

> Add Watermarks, Protect Photos (iPhone/iPad app by Leung Man Ho Thomas.)

- Source: https://appshunter.io/ios/app/photo-ma-ma/id1138367196 (this page in markdown: same URL + `.md`)
- Developer: [Leung Man Ho Thomas](https://appshunter.io/developer/619609289)
- Category: Photo & Video, Productivity
- Price: Free
- Age rating: 4+
- Requires: iOS 18.6 · 83 MB
- Languages: American English
- Released: 2016-09-02
- Data updated: 2026-07-21
- User reviews in markdown: https://appshunter.io/ios/app/photo-ma-ma/id1138367196/reviews.md

## What is Photo Ma Ma?

Protect Your Photos and Prove Your Ownership

This app is a powerful, free utility designed for photo lovers and hobbyists who want to mark, brand, and prove ownership of their photos before sharing them online. Whether you're posting to social media, sending photos to friends, or building your own personal collection, you stay in control of how your work is credited.

Key Features:

- Custom Visible Watermarks: Create and save your own text watermark designs. Overlay custom text directly onto any photo to claim visible credit for your work.

- Invisible Ownership Mark: Embed an imperceptible mark inside your photo using established digital watermarking techniques (spatial and frequency-domain embedding). This lets you later verify that a photo is yours — even after it's been shared or re-shared — without altering how the image looks.

- Durable, Compression-Resistant Marking: Choose the embedding method that best matches how you're sharing: lossless PNG (LSB) for archival-quality files, or optimized JPEG (DWT) for everyday sharing.

- High-Compression Export: A DCT-optimized output format designed to keep your ownership watermark intact even after messaging and social apps recompress your images during sharing.

- Full Customization: Adjust transparency, size, and position of your visible watermark to match your exact style.

- 100% On-Device Processing: Your photos never leave your device. All watermarking happens entirely offline — nothing is uploaded, stored, or shared.

Protect your creative work, prove your ownership, and share your photos with confidence.


## Version history (last 5 releases)

### 1.5.0 — 2026-07-14

- Fixed the bugs, and built the app using the latest version of Xcode
- Support iOS 18.6 or above

### 1.4.2 — 2023-05-30

Bug Fixed
- UI issues

### 1.4.1 — 2021-05-25

bug fixed
- Cannot display text in dark mode

### 1.4 — 2020-09-23

[ * ] Changes

- Suport iOS 14
- Allow saving watermarks in local database
- Add copyright quotes to multiple photos (batch mode)
- Add watermark to multiple photos (batch mode)
- Preview new design of watermark picture
- Save decoded secret image to the photo album 

 [ * ] Bug Fixed
- Abnormal terminate the APP when processing high resolution photo

### 1.3 — 2020-05-04

- Support iOS 13

New
a) Add 19 custom fonts
b) Add "Create watermark" function
c) Add "Add watermark" function
d) Add "Add secret image" function
e) Add "View secret image" function

## Apps similar to Photo Ma Ma

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [OVRL - Effects for photos](https://appshunter.io/ios/app/ovrl-effects-for-photos/id1631199246) | — | Free | Photo & Video |
| [Trichromy](https://appshunter.io/ios/app/trichromy/id6448881187) | 5.0 (7) | Free | Photo & Video |
| [Watermark lite: Add Watermark](https://appshunter.io/ios/app/watermark-lite-add-watermark/id1435795224) | 2.0 (4) | Free | Photo & Video |
| [Collage Maker Pro](https://appshunter.io/ios/app/collage-maker-pro/id983243305) | 1.0 (3) | Free | Photo & Video |
| [Glitch FX: Glitch Video Editor](https://appshunter.io/ios/app/glitch-fx-glitch-video-editor/id1360624861) | 4.4 (210) | Free | Photo & Video |
| [GAMMA 35mm](https://appshunter.io/ios/app/gamma-35mm/id1071684697) | 4.4 (22) | Free | Photo & Video |

## More apps by Leung Man Ho Thomas

- [RyanRun](https://appshunter.io/ios/app/ryanrun/id619609286)
- [Ursa Runner](https://appshunter.io/ios/app/ursa-runner/id640965686)
- [Mr. Color](https://appshunter.io/ios/app/mr-color/id835815034)
- [The Chinese Five Elements](https://appshunter.io/ios/app/the-chinese-five-elements/id895781672)
- [Camera Whiz](https://appshunter.io/ios/app/camera-whiz/id912331405)
- [Camera Whiz Remote](https://appshunter.io/ios/app/camera-whiz-remote/id913158558)

All apps by Leung Man Ho Thomas: https://appshunter.io/developer/619609289

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-21.*