ChromaInk vs VIVA Studio
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
ChromaInk
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ChromaInk is a universal tool designed for e-ink phone cases and supports various types of phone cases of the latest product, Prism. With ChromaInk, you can select any picture to create your exclusive phone back cover wallpaper. ChromaInk uses a unique image quality enhancement algorithm to present even more perfect effects for landscapes and portraits.
VIVA Studio
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VIVA Studio lets you design and send screens to compatible VIVA e-paper tags. β’ Choose designs that match your tagβs screen size and colors β’ Start with designs for price labels, name badges, meeting room signs, and desk nameplates β’ Edit the position, size, and color of text, shapes, and images β’ Use multiple fonts and rotate images β’ Continue editing your saved designs β’ Connect by NFC or device search, then send your design over Bluetooth β’ Refresh the connected display or show its initial screen β’ Use the app in Korean, English, Japanese, or Spanish Designs are saved on your device, and you can use the editor without creating an account. Sending designs and refreshing displays requires a compatible VIVA tag and a Bluetooth-enabled device. NFC is required only for NFC connection. Available screen sizes and colors depend on the connected tag model.
Screenshots
Verdict
The clearest difference is update cadence: VIVA Studio at daily against ChromaInk's monthly. ChromaInk's advantage is iOS requirement (13 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
ChromaInk ships an update monthly, VIVA Studio daily. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.
| Parameter | ChromaInk | VIVA Studio |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly | Daily β better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac β better |
| Requires iOS | 13 β better | 15.0 |
| Further details β not scored | ||
| Size | 21 MB | 254 MB |
| Age rating | 4+ | 4+ |
| Developer | PTseeing IoT Technology Co.,Ltd | 4SEILS |
In-app purchases
ChromaInk
No in-app purchases
VIVA Studio
No in-app purchases









