Comparison

问道紫微 vs DotInk

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

问道紫微

Features
Read full description

Ask Ziwei calculates Ziwei Doushu charts on your device, with birth profiles, true solar time adjustment, and views for major periods, years, months, and days. Manage chart archives and conversations with search, sorting, pinning, renaming, import, and export. Optional AI conversations support streaming replies and local chart tools. You can configure your own provider endpoint, model, and API key. Outside the China mainland App Store, optional Sign in with ChatGPT is available. Supported models and access depend on your account, workspace, and plan. Provider credentials are stored in your device Keychain. Prompts and relevant chart data are sent directly to your selected provider. The developer does not supply a shared API key or operate an AI proxy. Chart calculations and profile management do not require AI sign-in. Profiles may sync through your private iCloud database. The app is intended for traditional culture study and personal exploration. AI responses may be inaccurate.

About

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.

Highlights
  • WYSIWYG font customization
  • E-book conversion and formatting
  • Wireless device integration
  • Offline processing
  • Real-time screen simulation
  • Import TTF fonts
Features
Read full description

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

问道紫微2 screens
DotInk4 screens

Verdict

The call

The clearest difference is price: DotInk at Free against 问道紫微's $5.99. DotInk also leads on update cadence (weekly vs every 2 weeks) and iOS requirement (15.0 vs 26.0). 问道紫微's advantage is in-app purchases (none vs 3). On 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

CostPrice · In-app purchases · Ads · Monetization

DotInk is free to download; 问道紫微 costs $5.99 up front. DotInk sells 3 in-app purchases, starting at $0.99 per month. 问道紫微 asks for nothing beyond the download.

UpkeepUpdate frequency

问道紫微 ships an update every 2 weeks, DotInk weekly. The most recent releases landed on October 19, 2026 and October 12, 2026 respectively.

Scorecard4 real differences · 6 level
问道紫微 versus DotInk: the parameters behind the verdict, then further details
Parameter问道紫微DotInk
Price$5.99Free — better
Rating—1.0 (1 ratings) — better
Positive reviews—0.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 2 weeksWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS26.015.0 — better
Further details — not scored
Size9 MB11 MB
Age rating4+4+
Developer广鑫 武业 毕

In-app purchases

None

问道紫微

No in-app purchases

3 purchases

DotInk

Subscriptions2
  • Monthly Pro$0.991 Month
  • Yearly Pro$5.991 Year
One-time1
  • Lifetime Pro$14.99

Questions

Is 问道紫微 free?
问道紫微 costs $5.99, with no in-app purchases.
Is DotInk free?
DotInk is free to download, with in-app purchases available.
Do 问道紫微 or DotInk have ads?
Neither 问道紫微 nor DotInk shows ads.
Which is updated more often, 问道紫微 or DotInk?
问道紫微 ships an update every 2 weeks, and DotInk weekly. Most recently, 问道紫微 was updated on October 19, 2026 and DotInk on October 12, 2026.

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