Ink Marbling vs Pen15!
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ink Marbling
Explore the ancient Japanese art of suminagashi on your iOS device. Create unique marbled patterns by interacting with a digital canvas, simulating ink on water. Save your designs as high-resolution digital art.
- Simulate ink flow on water
- Multiple interaction modes
- Customizable brush sizes and colors
- Dynamic visual effects
- Save and share creations
- High-resolution image export
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Description: Ink Marbling brings the ancient Japanese art of suminagashi (floating ink) to your iOS device. Create stunning marbled patterns by interacting with a digital canvas, simulating the delicate movements of ink on water. Whether you're an artist, a hobbyist, or just looking for a relaxing creative outlet, SuminagashiPainting lets you design unique patterns and save them as digital art. * Note that the first time you open the app after download the initial screen may remain for several seconds as the app loads key components. * Features: Free Flowing Creativity: Simulate the natural flow of ink on water with taps, drags, and swirls on the canvas. Multiple Interaction Modes: Single Tap: Drop ink of one color to create concentric ripples. Double Tap: Add secondary colors for dynamic designs. Tap and Drag: Draw flowing lines of ink using a simulated rake with one tine. Customizable Tools (select the "Gear" icon on the upper-left of the screen): Adjust brush sizes to control the impact of ink drops. Choose from a palette of vibrant colors or create your own. Choose how to initialize your canvas. Dynamic Effects: Watch as blobs and lines interact to produce beautiful marbled patterns. Experiment with adjustable ink viscosities and flow velocities. Save and Share: Export your creations as high-resolution images to your Photos library. Share your designs directly to social media or with friends. COMING SOON: Ad-Free Premium Version: Unlock an ad-free experience and exclusive brushes, effects, and colors with the premium upgrade.
Pen15!
Unleash your creativity with a digital sketchbook designed for fun. Explore a variety of unique pens to bring your artistic visions to life.
- Digital sketchbook
- Variety of fun pens
- Creative sketching tool
- Intuitive interface
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Do you like sketching? Do you like different types of fun pens? Do you like collaging? Well then this app is for you.
Screenshots
Verdict
The clearest difference is update cadence: Ink Marbling at every 4 days against Pen15!'s fortnightly. On price, rating, review sentiment and ratings volume 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. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Ink Marbling against 5.0 for Pen15!. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Ink Marbling ships an update every 4 days, Pen15! fortnightly. The most recent releases landed on October 21, 2026 and October 16, 2026 respectively.
| Parameter | Ink Marbling | Pen15! |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (2 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 2 | 2 |
| Update frequency | Every 4 days — better | Fortnightly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.5 — better | 18.4 |
| Further details — not scored | ||
| Size | 5 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Matthew Szenher | Alexander Collins |
Customer experience
Ink Marbling
Pen15!
In-app purchases
Ink Marbling
No in-app purchases
Pen15!
No in-app purchases
