Sphere Whiteboard vs CT Chat
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sphere Whiteboard
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Giving institutional traders unparalleled market views they can act on. Sphere merges actionable screen trading with live voice and IM prices from your brokers in one holistic app.
CT Chat
A secure and reliable real-time messaging application designed for commodity market professionals. It offers full message accountability, file sharing, and group chat capabilities. Track messages, share media, and search conversations efficiently.
- Real-time messaging with read receipts
- Blast message tracking
- File and media sharing
- Full-text search
- Push notifications with muting
- QR code contact discovery
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CT Chat is a secure messaging app built for commodity market professionals. Fast, reliable real-time messaging with full message accountability — see when messages are sent, delivered, and read. Track blast messages across multiple recipients. Share files, images, and documents. Create group chats for desks and teams. * Direct and group messaging with read receipts * Blast message tracking with per-recipient status * File and media sharing * Full-text search across all conversations * Push notifications with per-contact muting * QR code contact discovery * Dark and light themes Built by CT Grid for the commodity trading and broking industry.
Screenshots
Verdict
Sphere Whiteboard and CT Chat are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
Sphere Whiteboard ships an update fortnightly, CT Chat every 11 days. The most recent releases landed on October 7, 2026 and October 12, 2026 respectively.
| Parameter | Sphere Whiteboard | CT Chat |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Fortnightly | Every 11 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.1 — better | 15.5 |
| Further details — not scored | ||
| Size | 42 MB | 50 MB |
| Age rating | 4+ | 4+ |
| Developer | Sphere Innovations | Commodity Technologies Limited |
In-app purchases
Sphere Whiteboard
No in-app purchases
CT Chat
No in-app purchases
Questions
Is Sphere Whiteboard free?
Is CT Chat free?
Do Sphere Whiteboard or CT Chat have ads?
Which is updated more often, Sphere Whiteboard or CT Chat?
Other comparisons
