Onyx CSS vs GRC Customers
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Onyx CSS
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Customer Self Service is a way to communicate for the users of Onyx to facilitate the fast tasks that are related to their customers Main Functions: 1- Exchange official documents with customers to match balances or for the purpose of sending balances such as quotation, customer request, invoice, account statement and more. 2- the possibility of view sales, return sales, quotations reports and its details and more 3- the possibility of contacting among customers using messaging. The customer can update his work data that is editable Main Features: 1- showing customers address on maps, and know the nearest of them for direct reach 2- contacting with customers with all new using news bar
GRC Customers
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A customer self-service app, is an integrated online platform shared by customers and its trading partner. The customer self-service app is used for entering customer information, submitting documents, displaying status, and communicating. With a customer app, creating documents like electronic sales orders, viewing contracts, and customer invoices for payment is more accessible. It also reduces the costs of sales cycles by improving the exchange of business documents and shortening the time it takes to process the content of these documents.
Screenshots
Verdict
The clearest difference is iOS requirement: Onyx CSS at 13.0 against GRC Customers's 15.0. On price, update cadence, ads and in-app purchases 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.
Onyx CSS ships an update every 6 months, GRC Customers every 4 months. The most recent releases landed on June 5, 2026 and September 18, 2026 respectively.
| Parameter | Onyx CSS | GRC Customers |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 24 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | ULTIMATETEK SOLUTIONS PRIVATE LIMITED | AXNOSIS LTD |
In-app purchases
Onyx CSS
No in-app purchases
GRC Customers
No in-app purchases







