Comparison

Open Brush for Zapbox vs Eink Vein

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

Head to head

Open Brush for Zapbox

Paint in MR with Zapbox!

About

Open Brush for Zapbox

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Art from All Angles. 3D paint with Zapbox! Paint in room-scale 3D with Open Brush on Zapbox. Unleash your creativity with three-dimensional brush strokes, choosing from a wide palette of brushes. Your room is your canvas. Your palette is your imagination. Inspiration is everywhere. Immerse yourself in your own creations, in inspiring virtual backdrops, or your own room with Mixed Reality! Open Brush is still in development for Zapbox, and some features available on other platforms may not be present at this time. Enjoy the release! *Note: Requires Zapbox hardware to function. Visit https://www.zappar.com/zapbox/ to learn more.*

About

Eink Vein

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AI image generation, image editor, NFC data transmission

Screenshots

Open Brush for Zapbox4 screens

Eink Vein4 screens

Verdict

The call

The clearest difference is update cadence: Open Brush for Zapbox at every 6 months against Eink Vein's every 21 months. Open Brush for Zapbox also leads on device support. On price, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Open Brush for Zapbox ships an update every 6 months, Eink Vein every 21 months. The most recent releases landed on October 11, 2026 and October 7, 2026 respectively.

Scorecard2 real differences · 4 level

Open Brush for Zapbox versus Eink Vein: the parameters behind the verdict, then further details
Parameter	Open Brush for Zapbox	Eink Vein
Price	Free	Free
Update frequency	Every 6 months — better	Every 21 months
Ads	No	—
In-app purchases	No	No
Devices	iPhone, iPod — better	—
Requires iOS	12.0 — better	13.0
Further details — not scored
Size	477 MB	59 MB
Age rating	12+	4+
Developer	Icosa Foundation	Shenzhen Aiinone Technology Co., Ltd

In-app purchases

None

Open Brush for Zapbox

No in-app purchases

None

Eink Vein

No in-app purchases

Questions

Is Open Brush for Zapbox free?

Open Brush for Zapbox is free to download, with no in-app purchases.

Is Eink Vein free?

Eink Vein is free to download, with no in-app purchases.

Which is updated more often, Open Brush for Zapbox or Eink Vein?

Open Brush for Zapbox ships an update every 6 months, and Eink Vein every 21 months. Most recently, Open Brush for Zapbox was updated on October 11, 2026 and Eink Vein on October 7, 2026.