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PixelBlock VS Alterable

Compare PixelBlock VS Alterable and see what are their differences

PixelBlock

Block email open tracking inside of Gmail

PixelBlock Landing page
Rating
0 reviews
Alternatives Is it good?
Alterable

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.

Alterable screenshot
Rating
0 reviews
Pricing
Freemium
Alternatives Is it good?
InboxAlly
Enterprise Email Warmup. Sender Domain Reputation Repair Tool to get out of spam and see open rates more than double in 4 to 14 days. We engage with your emails to teach mailbox providers not to send your email to the spam or the promotions folder. sponsored

Which is more popular?

Based on our record, PixelBlock seems to be more popular. It has been mentioned 1 time since March 2021.

social mentions
1 vs 0
Email Automation popularity
100% vs 0%
alternatives listed
59 vs 14

Base details

Website, pricing, platforms and company facts side by side.

PixelBlock
Alterable
Website chromewebstore.google.com alterable.com
Pricing —
Freemium Official pricing
Platforms —
Web
Company — Startup from the United States · 1 - 9 employees
Listed in
Monitoring Tools Email Automation Email Marketing Platform +1
Dynamic Content Email Marketing SaaS Digital Marketing Email Newsletter Marketing Marketing Automation +4

About PixelBlock and Alterable

In their own words, as submitted to SaaSHub.

PixelBlock
Alterable

No description of PixelBlock 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...

Read more about Alterable

Features and specs

What each product offers, as listed by its team.

PixelBlock 3 features
Alterable 6 features
  • Privacy Protection
    PixelBlock helps enhance email privacy by blocking tracking pixels that can gather information about when and where emails are opened.
  • User-Friendly
    The extension is easy to install and use, requiring minimal configuration to start blocking tracking pixels from email communications.
  • Lightweight
    PixelBlock is a lightweight extension that doesn't significantly impact the browser's performance, making it efficient for users seeking basic privacy protection.

Possible disadvantages

  • Compatibility
    PixelBlock is specifically designed for Google Chrome, so users of other browsers cannot take advantage of its features unless a compatible extension is available.
  • Limited Functionality
    While effective at blocking email tracking pixels, PixelBlock doesn't offer additional features such as email encryption or filtering, which might be important to some users seeking comprehensive privacy solutions.
  • Potential False Positives
    In some cases, PixelBlock might block non-tracking images or elements in emails, potentially impacting the intended viewing experience.
  • Notification Pop-Ups
    The extension displays a notification when it blocks a tracking attempt, which might be seen as intrusive or distracting by some users.
  • Countdown Timers
    Live, ticking countdown images embedded in email via a single <img> tag. Re-rendered fresh every time an email is opened.
  • Dynamic Images
    Serves a different image per recipient based on location, device, language, weather, temperature, time of day, or custom rules, rendered at open-time.
  • Dynamic Products
    Product blocks showing live price, stock level, and availability at the moment of open; auto-hides sold-out items, auto-badges low stock.
  • Local Maps
    Geo-targeted map showing each recipient's nearest store or point of interest, rendered at open-time from a CSV-imported location list.
  • Surveys
    One-click star, number, or emoji rating widgets embedded directly in email; no landing page or login required to respond.
  • Scratchers
    Scratch-card-style gamified prize reveal; Alterable hosts the resulting prize page.

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
PixelBlock
Alterable
100% 100%
Email Automation
0% 0%
0% 0%
SaaS
100% 100%
100% 100%
Monitoring Tools
0% 0%
0% 0%
Email Marketing
100% 100%

Questions & Answers

As answered by people managing PixelBlock and Alterable.

What makes your product unique?

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.

Why should a person choose your product over its competitors?

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.

User comments

Share your experience with using PixelBlock and Alterable. For example, how are they different and which one is better?

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Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

PixelBlock 1 mention
Alterable 0 mentions

Tracking Alterable since Feb 2022.

Alternatives to PixelBlock and Alterable

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