
Adobe Learning Manager
Udemy
LMS Collaborator
Moodle
MindTickle
WorkRamp
LinkedIn Learning
KnowBe4 provides Security Awareness Training to help you manage the IT security problems of social engineering, spear-phishing & ransomware.

NiftyImages
Sendtric
OpenAlternative
MailChimp
CountdownMail
Postmark
Mailtimer.io
Real-time, open-time content for email: countdown timers, dynamic images, live product picks, geo-targeted maps, one-click surveys, and scratch-card rewards. No code, no ESP integration, rendered fresh every time someone opens.

Which is more popular?
Based on our record, Knowbe4 seems to be more popular. It has been mentioned 6 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | knowbe4.com | alterable.com |
| Pricing | ||
| Platforms | — | |
| Company | — | Startup from the United States · 1 - 9 employees |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Knowbe4 yet.
Alterable adds real-time, open-time content to email campaigns, no coding, no ESP integration, no resends. Every asset is a single image URL that renders fresh the moment a subscriber opens the message, not the moment you hit send. Countdown timers count down live in the inbox. Choose a fixed...
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
KnowBe4 is recommended for organizations of all sizes that are looking to bolster their staff's cybersecurity awareness and resilience against social engineering attacks. It is particularly valuable for businesses operating in sectors with high compliance and regulatory requirements, such as finance, healthcare, and government.
No analysis of Alterable yet.
Walkthroughs and reviews on video.
KnowBe4 Review
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Knowbe4 and Alterable.
Alterable's answer:
Most tools in this space (NiftyImages, Sendtric, MotionMail, CountdownMail) do one thing well, usually just countdown timers. Alterable is a single platform for six distinct open-time content types, timers, dynamic images, live product data, geo-targeted maps, surveys, and scratch-card rewards, all rendered the same way: one image tag, no ESP integration, no JavaScript.
That "just an image" approach is also what makes it universal: it works in every major email client without exception, since there's nothing for Outlook or Gmail to selectively support or block.
The rules engine is shared across all six content types too. The same conditions (location, weather, device, time of day, stock level) that pick a dynamic image can pick a product, a map location, or a timer variant, so teams build a targeting logic once and reuse it everywhere instead of learning a separate tool per feature.
Alterable's answer:
Against single-purpose timer tools (Sendtric, CountdownMail, MotionMail, CountingDownTo): those platforms do one thing, a countdown widget. Alterable includes countdown timers plus dynamic images, live product data, geo-targeted maps, surveys, and scratch cards, on one account, with one shared rules engine. If a team outgrows "just a timer," there's no second tool to adopt.
Against broader personalization platforms (NiftyImages, Movable Ink): Alterable is free to start with no credit card, and every asset is a plain image tag rather than requiring a native ESP integration or account connection. That keeps setup to minutes and means it works identically across Klaviyo, Mailchimp, HubSpot, GetResponse, or any of 50+ platforms, with no per-ESP configuration to maintain.
Because it's "just an image": there's no JavaScript, no AMP, no interactive-email fallback logic to write or test. It renders the same way in Outlook as it does in Gmail, which is where more elaborate interactive approaches usually break first.
Share your experience with using Knowbe4 and Alterable. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


If knowbe4.com is in header. Move to Phishing test folder. Source: about 4 years ago
Our security team uses them. It always strikes me as bad form when we are told "don't open e-mail from people you don't know" and "don't click on links in e-mails" and then we get e-mail from "knowbe4.com" that says "You've been... Source: about 4 years ago
We use KnowBe4 with our clients for phishing and training. Source: over 5 years ago
Tracking Alterable since Feb 2022.
When comparing Knowbe4 and Alterable, you can also consider the following products.

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Easily create animated countdown timers on Sendtric to boost your clickthrough rates and increase sales. Free with no watermarks or account required.
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LMS Collaborator is a state-of-the-art learning management system designed to meet the need for corporate training, upskilling, and evaluation with flexible integration abilities.
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