Change Focus vs DotInk
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Change Focus
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Change Focus can help you to change the focus of your photo. In the beginning, click the center "camera" icon to save the 3D image. Then, browse the photo you just took by clicking the bottom right photo. Click the photo to change focus on the point you click. You can change the blur ratio by dragging the slider. Press the "camera" icon to save the outcome image. On the setting page, you can set the blur degree. If you think blur is insufficient, you can make it heavier (but the processing time will also increase). You can also change the display/output image resolution (the larger, the slower). You can also change the view from 2D to 3D for better recognition of view depth. And turn the flashlight on/off by clicking the "torch" icon. p.s. Change Focus uses LiDAR to detect image depth. Please launch this application using iPhone 12 Pro or later / iPad Pro 2nd or later. Because of the resolution, the boundary phenomenon of the display image will not be obvious until the output photo (larger resolution).
DotInk
This app helps e-ink device owners customize fonts and convert e-books for their readers. It offers WYSIWYG font editing, e-book formatting, and seamless wireless integration with supported devices. All processing is done offline, prioritizing user privacy.
- WYSIWYG font customization
- E-book conversion and formatting
- Wireless device integration
- Offline processing
- Real-time screen simulation
- Import TTF fonts
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Designed for e-ink enthusiasts, making your portable readers more powerful and easier to use. Seamlessly convert .ttf fonts and e-books on your phone into .bin fonts, XTC, or EPUB formats perfectly tuned for portable e-ink screens. [CORE FEATURES] • WYSIWYG Font Customization Import external .ttf fonts or use system fonts. Adjust line spacing, tracking, size, weight, and more with precision. Real-time simulation of various e-ink screens—preview exactly how it looks before exporting. • Powerful E-book Toolbox Import various e-book formats to preview layouts directly on your phone. Customize formatting and convert to standard formats with a single tap. • Seamless Device Integration Wireless connection to supported devices for font pushing and file management. Supported Devices: XTEInk X4, EDCBook, Murphy 3.7, Wudada·Little Ink, and more. • Privacy First & Offline 100% Offline: All processing is done locally on your device. No user data is ever uploaded. (Note: Network and Location permissions are required solely for connecting to your e-ink hardware.) [NOTE FROM DEVELOPER] This app is an indie project built with "AI Vibe Coding." While I strive for perfection, I cannot test every scenario. If you encounter any bugs, I appreciate your understanding. Thank you to all the "Community Supporters" for your feedback! Feel free to leave suggestions or comments. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Change Focus at none against DotInk's 3. On price, ads, device support and iOS requirement 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. DotInk sells 3 in-app purchases, starting at $0.99 per month. Change Focus asks for nothing beyond the download.
| Parameter | Change Focus | DotInk |
|---|---|---|
| Price | Free | Free |
| Rating | — | 1.0 (1 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | — | Weekly |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 10 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | HAN WEI WANG | 业 毕 |
In-app purchases
Change Focus
No in-app purchases
DotInk
- Monthly Pro$0.991 Month
- Yearly Pro$5.991 Year
- Lifetime Pro$14.99









