3D Plotter vs MingBai
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
3D Plotter
Visualize 2D functions in a 3D space by entering formulas and plot ranges. Customize the display with grid toggles, color themes, and adjustable speed and quality settings for various screen sizes.
- Plot 2D functions in 3D
- Enter custom formulas
- Define plot ranges
- Toggle grid display
- Multiple color themes
- Adjust speed and quality
- Supports all display sizes
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Plot graphs of 2-dimensional functions in 3D. Enter the formula for the function and the range you want to plot. Features: - toggle grid display - different color themes - contol speed and quality with the number of tiles - Supports all displays sizes
MingBai
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MingBai is the Chinese dictionary that teaches — not just translates. Look up any word to see how its characters actually work, from radicals and stroke order to tone and meaning. Whether you're prepping for HSK exams, reading signs in China, or building long-term fluency, MingBai turns every lookup into lasting knowledge with scientifically-backed spaced repetition. ▸ 124,000+ DICTIONARY ENTRIES Search in English, pinyin, or Chinese. Every entry shows definitions, tones, HSK levels (1–6), example sentences, and detailed character breakdowns with radical and component analysis. ▸ DRAW TO SEARCH Don't know the pinyin? Draw any character on screen and MingBai recognizes it instantly — no keyboard needed. ▸ CAMERA TEXT SCANNING Point your camera at signs, menus, or textbooks. MingBai captures the Chinese text and lets you tap any word for an instant lookup. ▸ SPACED REPETITION FLASHCARDS Master vocabulary for the long term with FSRS-5 powered flashcards. Review across four dimensions — meaning, reading, writing, and tone — scheduled at the scientifically optimal moment for retention. ▸ STROKE ORDER PRACTICE Learn to write characters stroke by stroke with animated guides and real-time accuracy feedback. ▸ GRADED STORIES Read real Chinese stories with interactive text. Tap any word to look it up instantly. Graded difficulty and color-coded pinyin help you read at your level and build vocabulary naturally. ▸ PREMIUM NEURAL VOICE Hear natural Mandarin pronunciation with Kokoro neural TTS — a world apart from standard text-to-speech. ▸ SMART BOOKMARKS Save words and characters with one tap. Filter by HSK level, sort by frequency, and export your collection anytime. ▸ DAILY LEARNING Fresh curated words every day, a study heatmap to track your streak, and personalized recommendations to keep you progressing.
Screenshots
Verdict
The clearest difference is price: MingBai at Free against 3D Plotter's $1.99. MingBai also leads on update cadence (fortnightly vs every 8 months). 3D Plotter's advantage is in-app purchases (none vs 5) and iOS requirement (15.6 vs 26.2). 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
MingBai is free to download; 3D Plotter costs $1.99 up front. MingBai sells 5 one-off in-app purchases. 3D Plotter asks for nothing beyond the download.
3D Plotter ships an update every 8 months, MingBai fortnightly. The most recent releases landed on October 2, 2026 and September 30, 2026 respectively.
| Parameter | 3D Plotter | MingBai |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 1.0 (2 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 8 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.6 — better | 26.2 |
| Further details — not scored | ||
| Size | 1 MB | 150 MB |
| Age rating | 4+ | 4+ |
| Developer | Piet Jonas | Robin Stoehr |
In-app purchases
3D Plotter
No in-app purchases
MingBai
- Premium Voice$4.99
- Handwriting Recognition Unlimited$9.99
- Stroke Order Trainer$9.99
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- Scan / OCR Unlimited$9.99
- All Access Bundle$19.99









