Comparison

CSI Secure Connect vs Diligent Messenger

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

Head to head
About

CSI Secure Connect

Facilitates secure and efficient communication for board members, providing easy access to confidential documents and tools for online votes and discussions. It simplifies data sharing to enhance corporate communication and productivity.

Highlights
  • Secure access to board materials
  • Online votes and discussion threads
  • Shared calendar for meeting scheduling
  • Storage for current and archived documents
  • No additional hardware or software required
Features
Read full description

Establishing and maintaining regular communication with your board of directors is essential. CSI’s Secure Connect allows you to engage board members through a more efficient, cost-effective medium. It provides directors with secure access to board materials and other confidential information from the convenience of their homes or offices. CSI’s Secure Connect allows you to maximize secure communications with board members in the following ways: - Stores current and archived documents for convenience and ease - Facilitates communication through online votes, discussion threads and other tools - Allows you to schedule meetings via a shared calendar - Requires no additional hardware, software or additional staff to maintain CSI’s portal solutions simplify the way data is accessed, shared and utilized, allowing you to enhance corporate communication, increase productivity and decrease cost. The portals are stand-alone solutions that can be implemented for any financial institution or business.

About

Diligent Messenger

A secure messaging application designed for executives and board members to communicate confidentially. It integrates with a board management platform, ensuring conversations are protected by encryption and access controls within a trusted governance framework.

Highlights
  • Secure messaging for executives
  • Integrated with Diligent Boards platform
  • End-to-end message encryption
  • Strict access controls
  • Admin and Board Member user roles
  • Centralized group and permission management
Features
Read full description

Our secure messaging app is purpose-built for board members and executives who demand both confidentiality and compliance. This isn’t just another messaging tool — it is an integrated extension of our Diligent Borads platform, enabling direct communication within the same closed loop environment where board materials are shared and discussed. Absolute Peace of Mind. Whether you're discussing mergers, financials, or strategic moves, our app ensures your conversations stay private — protected by best-in-class systems infrastructure, message encryption and strict access controls. Every message lives within the governance framework you already trust — ensuring alignment, compliance, and continuity. Your trusted support by your side. Diligent Messenger is built to reflect the real-world dynamics of board operations, offering two distinct user roles: Admins and Board Members/Executives. Admins can create groups, share announcements, and control permissions centrally, without intruding on private board discussions. It’s the same trusted support board administrators provide in person, now extended into a secure digital environment. Additional information: Over 4,000 organizations and 145,000 executives and board members trust Diligent with their most confidential board meeting materials. Now, we’re bringing that same level of protection to your most time-sensitive and critical messages. In order for you to begin using Diligent Messenger for secure business messaging, an account and administrator will need to be set up for your organization.

Screenshots

CSI Secure Connect4 screens
Diligent Messenger3 screens

Verdict

The call

The clearest difference is rating: Diligent Messenger at 4.7 against CSI Secure Connect's 2.9. Diligent Messenger also leads on iOS requirement (14.1 vs 17.2). CSI Secure Connect's advantage is update cadence (every 3 weeks vs every 6 weeks). On price, ratings volume, 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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

Diligent Messenger holds the better App Store score, 4.7 against 2.9. Both are backed by a comparable volume of ratings — 10 and 19 respectively.

UpkeepUpdate frequency

CSI Secure Connect ships an update every 3 weeks, Diligent Messenger every 6 weeks. The most recent releases landed on September 21, 2026 and September 26, 2026 respectively.

Scorecard3 real differences · 7 level
CSI Secure Connect versus Diligent Messenger: the parameters behind the verdict, then further details
ParameterCSI Secure ConnectDiligent Messenger
PriceFreeFree
Rating2.9 (10 ratings)4.7 (19 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings1019 — better
Update frequencyEvery 3 weeks — betterEvery 6 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.214.1 — better
Further details — not scored
Size77 MB111 MB
Age rating4+4+
DeveloperComputer Services, Inc.Diligent Corporation

Customer experience

CSI Secure Connect

All ratings10 ratings
Positive40.0%
Neutral20.0%
Negative40.0%

Diligent Messenger

All ratings19 ratings
Positive94.7%
Neutral0.0%
Negative5.3%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

CSI Secure Connect

No in-app purchases

None

Diligent Messenger

No in-app purchases

Questions

Is CSI Secure Connect free?
CSI Secure Connect is free to download, with no in-app purchases.
Is Diligent Messenger free?
Diligent Messenger is free to download, with no in-app purchases.
Which has better reviews, CSI Secure Connect or Diligent Messenger?
Diligent Messenger is rated higher. CSI Secure Connect averages 2.9 out of 5 from 10 ratings, while Diligent Messenger averages 4.7 from 19 ratings.
Do CSI Secure Connect or Diligent Messenger have ads?
Neither CSI Secure Connect nor Diligent Messenger shows ads.
Which is updated more often, CSI Secure Connect or Diligent Messenger?
CSI Secure Connect ships an update every 3 weeks, and Diligent Messenger every 6 weeks. Most recently, CSI Secure Connect was updated on September 21, 2026 and Diligent Messenger on September 26, 2026.

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