# Intradyn Alternative | Comma Compliance

Looking for an Intradyn alternative? Comma captures 35+ channels at one flat per-user price with open-source capture code with secure archival.

Source: https://commacompliance.com/compare/intradyn-alternative
Last updated: 2026-05-22

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Intradyn is a long-standing email archiving vendor offering on-premise appliances, virtual appliances, and a cloud option, with mobile and social media archiving available as separate add-on products. Here's how Comma Compliance compares across architecture, channel coverage, and exam readiness.

## At a Glance

Intradyn prices by channel: email per mailbox, appliance by storage (perpetual license), mobile and social as add-ons. Mobile capture relies on provisioned numbers or device agents. As of May 2026, there is no publicly stated Signal capture, but historically it was routed through TeleMessage. Comma covers 35+ channels in one flat per-user price, with open-source capture for WhatsApp and Signal, built-in supervision, and exam-ready case management.

## Side-by-Side Comparison

| Feature | Comma Compliance | Intradyn |
| -------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | -------------------------------------------------------------------------------------------------- |
| Architecture | End-to-end — capture, archive, supervision, policy matching, and exam-ready case management, with [open source transparency.](https://github.com/comma-compliance) | Proprietary; capture methodology not publicly disclosed. Hardware appliance, virtual appliance, and cloud options. |
| Built-in archive | Yes — included in platform | Yes |
| WORM storage | [Yes](/resources/worm-storage) — written at point of capture | Yes |
| iMessage capture | [Point-of-delivery](/post/archive-imessage-for-sec-compliance), not iCloud-dependent. Blue bubble retained. | Device-level agent (DLA) on corporate-owned devices. Under the BYOD path, iMessage must be disabled entirely, with business texting falling back to standard SMS/MMS. |
| WhatsApp capture | Captures both WhatsApp Business and personal WhatsApp | App-level archiving (ALA) requires a separate virtual business number provisioned per employee. |
| Signal capture | Yes — [open-source capture code](https://github.com/comma-compliance/signal-capture) published on GitHub | Not natively supported. |
| SMS / MMS capture | Yes — at the source | Yes — via device-level agent (DLA) or, on supported US carriers, network-level (NLA) |
| Channel list | [35+ channels](/platform-integrations) — named and public | Mobile, email, and social available as separate products with separate license fees |
| Capture method documentation | Published — architecture diagrams, open-source code, no NDA required | Not publicly documented; no architecture diagrams, no open-source components |
| Transparency | WhatsApp and Signal capture code published openly on GitHub — no NDA, no request required | Closed and proprietary |
| Pricing model | Flat monthly [pricing](/pricing), all platforms included. No per-connector fees, no export fees. [$33/user active, $15/user archival.](/pricing) | Modular by channel — email priced per active mailbox, appliance licensed by storage capacity, mobile and social as separate add-on licenses. Appliance: perpetual license + annual support contract. |
| Export fees | Free, unlimited | Unknown |
| Free trial | Yes | Yes |
| Personal vs. business separation | Simple toggle — users mark contacts as business or personal; only business is archived | Achieved by provisioning a separate business number — anything on that number is, by definition, business |
| Policy processing | Yes — built in | Keyword/lexicon-based supervision |
| Custom policy matching | Yes | Keyword/lexicon rules |
| Case management | [Exam-ready](/exam-ready-cases) — built for regulatory examination prep | Scheduled automated searches, review cadence, and flagged-message review with comments and timeline. |
| Data ownership | Client retains full ownership; never sold or shared outside authorized sub-processors | Client retains ownership |

*Competitor feature descriptions reflect publicly available documentation and may not capture all capabilities. Information is reviewed periodically.*

## When Intradyn may be a better fit

- The firm needs a turnkey hardware appliance shipped and supplied by the vendor itself. Comma supports on-premise deployments, but does not ship a physical box.
- The compliance workflow is heavily email-centric, with mobile messaging treated as a small secondary concern.

## The Encrypted-Channel Gap

Intradyn's encrypted-mobile coverage is the part worth scrutinizing closely. WhatsApp capture relies on provisioning a separate virtual business number per employee, which is workable for some firms but adds carrier and eSIM friction (especially after WhatsApp's January 2024 registration changes that restrict acceptable number types). Under the BYOD path for iMessage, Intradyn's answer is to disable iMessage entirely and route business texting through standard SMS/MMS, meaning no blue bubbles for clients who expect them. Signal is not natively supported, and historically has been routed through TeleMessage, which was breached in 2025.

Comma Compliance captures iMessage at the point of delivery with no requirement to disable the app, captures WhatsApp business and personal accounts directly, and ships a Signal connector with the capture code published openly on GitHub — no third-party dependency, no closed architecture.

## The Pricing Model Gap

Intradyn's channel-modular pricing means the cost of a multi-channel compliance program is the sum of separate licenses: email by mailbox, appliance by storage capacity, mobile as a separate add-on, social as another. Each is negotiated and contracted separately. Comma Compliance is one flat per-user price for the whole stack — every channel, every feature, every export — with pricing published on the site.