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HCL Notes vs ProtonMail comparison

 

Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

HCL Notes
Ranking in Email Applications
7th
Average Rating
7.6
Reviews Sentiment
6.8
Number of Reviews
19
Ranking in other categories
No ranking in other categories
ProtonMail
Ranking in Email Applications
9th
Average Rating
8.6
Reviews Sentiment
8.0
Number of Reviews
2
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of August 2025, in the Email Applications category, the mindshare of HCL Notes is 3.5%, up from 3.3% compared to the previous year. The mindshare of ProtonMail is 6.4%, up from 3.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Applications
 

Featured Reviews

Herad Howell - PeerSpot reviewer
Secure communications that prompts responses with room for improved user interface
I primarily value HCL Notes for its security features. The software's secure communication is particularly useful when dealing with professional entities. It ensures that business is conducted smoothly, allowing me to use my organization's email confidently, as opposed to my personal Gmail, which might not prompt responses from some entities.
AP
Trust and anonymity play a key role in secure communications
I am uncertain about the two-factor authentication feature. I have had integrations with other Proton services and have used Proton VPN once, though it has limited features. Simple Mail, which was acquired by ProtonMail, has been very useful for me. The pricing is moderate. I have not used any paid services from ProtonMail. It is not very costly, but I have not used any premium services. I am a customer of ProtonMail. I would rate ProtonMail an eight out of ten due to their transparency and the utility of their simple login feature. My job and company name should remain hidden.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"The security and performance of the solution are good even though our platform is variable, except for the mail services."
"It offers unique capabilities, excellent security, and replication features."
"The most valuable feature is the UI."
"Its security is absolutely stratospheric. In an application, you can lock down to field-level security. For example, I could log in and see a field in an HR database with salaries. When you log in, you see exactly the same database, but the field with the salary just isn't there. So, you can literally have field-level security on it, and you can also have secure encryption. For example, I could give you that database allowing you to see the salary, but a calculation that shows how much they get per month in another field is encrypted. So, you won't be able to see that because you don't have the encryption key. You can implement high-level security very simply."
"HCL Notes has fantastic built-in security. The email and personal communication components are excellent, but they are some applications provided by HCL that Notes previously provided when it was under IBM and Lotus. Everyone wants email, so that's just part of the product. However, more savvy users can build their own solutions for managing information, and that's the great thing about it."
"The solution is practical, good interface, and performs well."
"It is one of the best products in the world for workflow applications. It works very well for workflows or decisional processes where a task needs to be first approved by someone. After that, the task moves to the next or final stage where another person approves it with some notes or attached documents."
"The offline access feature in HCL Notes helps me significantly due to its strong replication mechanism, allowing me to work wherever I am, and when I connect, it facilitates two-way replication of information."
"What I appreciate most about ProtonMail is that they are trusted, which is why I choose them."
"The auto encryption of attachments is valuable."
 

Cons

"I love this product. I have used it for many years, and I have been a developer for it. If anything, it can be faster in the client version. The client version is a little bit hard. It is not fast. This is the only problem I see. Otherwise, it is a very good product."
"I would like to see integration with other solutions."
"The performance was terrible because we have a very large database with around three million records, including attachments and scanned comments. It was slow, and integrating new technologies or designs was also slow."
"While HCL has made significant advances in the user interface and diverse platform compatibility, some improvements could be made in user-friendliness and graphical interface enhancements."
"We had trouble connecting this solution to the database from Microsoft. We have done it, although it can be easier."
"Some people complain that they want something more modern and jazzy."
"The solution could improve by adding some more features."
"Web support is very old and needs an upgrade. We can handle a different password for the client to access the mail services, compared to the web services. We need to implement many other components to get access to the web access. There could be a feature to interpret if the web access is available from any end-user equipment."
"One improvement could be the integration between ProtonMail and Proton Pass, allowing sharing of specific secrets via email."
"I think it is good but I feel that only tech-savvy people use ProtonMail. It is not that popular among other people."
 

Pricing and Cost Advice

"I don't remember how much we paid when we first bought the Domino license, but now, we pay only for the passport. For 30 client licenses, we pay about $1,500 per year, and we don't consider it very expensive for the quality of the product. In our case, we need 30 client licenses. So, we buy 30 client licenses independently of the server. It is very easy for us to choose and maintain this kind of license and get the passport advantage."
"It was reasonably priced, but the product itself was not worth the cost."
"We pay licensing fees on a yearly basis."
"The price is reasonable."
"We pay annually for the use of the solution."
"The solution is expensive. There are many components or features which make the price very high."
"It is far cheaper to license. It is a third of the cost of our Microsoft license for 10 times the amount of usage. Developing applications cost a fraction of anything else. There are two reasons for that. First of all, applications are very fast to build. All the security is already built into the platform, so you don't have to worry about security at all. The other thing is that because fewer people use it than, for example, Microsoft SharePoint, the salary commanded by programmers is slightly lower. So, it is not only faster; you also get cheaper programmers. So, you really win-win-win on it."
Information not available
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Top Industries

By visitors reading reviews
Government
16%
Manufacturing Company
13%
Computer Software Company
12%
Financial Services Firm
7%
Computer Software Company
17%
Comms Service Provider
15%
Educational Organization
11%
Manufacturing Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
 

Questions from the Community

What do you like most about HCL Notes?
The security and performance of the solution are good even though our platform is variable, except for the mail services.
What needs improvement with HCL Notes?
Regarding additional functions, the front end of the databases on the home screen looks somewhat old-fashioned. It could be modernized by the development team.
What is your primary use case for HCL Notes?
Our use case for HCL Notes is that we use it for critical production databases and a lot of administration databases. We use it for email and calendars extensively.
What is your experience regarding pricing and costs for ProtonMail?
The pricing is competitive, offering good value on the average plan. It’s approximately $100 for annual billing.
What needs improvement with ProtonMail?
In terms of what can be improved in ProtonMail, I think it is good but I feel that only tech-savvy people use ProtonMail. It is not that popular among other people. Therefore, we do not use it for ...
What is your primary use case for ProtonMail?
My use cases include using ProtonMail for Drive occasionally for storing files. After some time, I stopped using that feature. Primarily, I use it for sending emails when I want to maintain anonymi...
 

Comparisons

 

Also Known As

IBM Lotus Notes, Lotus Notes
No data available
 

Overview

 

Sample Customers

Connect2Cloud, Hansgrohe, Sauk County, Blue Water Shipping, FDBR, ibml, Multivac, Aarhus University Hospital, Hendricks Regional Health, Asian Paints, Integra Legal, Sunplus Technology, S¾SS, The Moroccan Ministry of Youth and Sports, Nicrometal, Doncasters Group, Practice Plan, Barr, RACV, Neotechnik, Deutsche Notes User Group
Wall street journal,The New york times, The Gurdian, Forbes, Fox News
Find out what your peers are saying about HCL Notes vs. ProtonMail and other solutions. Updated: July 2025.
865,384 professionals have used our research since 2012.