
Buffer
Hootsuite
Later
Publer
AgoraPulse
Metricool
SproutSocial
Streamline your social media with Postiz. Schedule posts, analyze performance, and manage all accounts in one place.

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, Postiz seems to be more popular. It has been mentioned 4 times since March 2021.
Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | postiz.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 Postiz 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
Walkthroughs and reviews on video.
Postiz AI Review: 7 CRUCIAL Things You Need To Know (Best Just Released AI Software)
More videos
No Alterable videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Postiz 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 Postiz and Alterable. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


The GitHub repos tell the supply-side story. Postiz tells the demand-side story — and the revenue numbers make it impossible to ignore. - Source: dev.to / about 1 month ago
Research mode provides a solid planning step for customer-facing videos, while publishing handles exports directly to YouTube and social channels. Nevo David noted Postiz integrated directly as a plugin, which is a meaningful ecosystem... - Source: dev.to / 2 months ago
Postiz surprised me the most, and in a good way. - Source: dev.to / 5 months ago
Tracking Alterable since Feb 2022.
When comparing Postiz and Alterable, you can also consider the following products.

Buffer makes it super easy to share any page you're reading. Keep your Buffer topped up and we automagically share them for you through the day.
Compare Buffer to Postiz or Alterable:

NiftyImages is a tool to engage clients with personalized images and countdown timers for email.
Compare NiftyImages to Postiz or Alterable:

Enhance your social media management with Hootsuite, the leading social media dashboard. Manage multiple networks and profiles and measure your campaign results.
Compare Hootsuite to Postiz or Alterable:

Easily create animated countdown timers on Sendtric to boost your clickthrough rates and increase sales. Free with no watermarks or account required.
Compare Sendtric to Postiz or Alterable:


Discover Open Source Alternatives to Popular Software
Compare OpenAlternative to Postiz or Alterable: