How to Use the Tumblr App
Nothing on the screen behaves the way the other apps trained you to expect, which is the entire appeal.
You use the Tumblr app from the dashboard, which is what opens first: a reverse-chronological feed of everything posted by the blogs you follow. There is no ranking and no suggested content in the main view.
You post with the pencil button, you spread a post by reblogging it rather than sharing it, and you find anything at all through tags rather than search.
Those three facts explain most of what confuses new users. Tumblr is not a social network with a feed algorithm bolted on. It is a blogging platform where the primary action is republishing somebody else's post onto your own blog.
The single idea that makes the rest of the app make sense is that a reblog is a copy, not a share.
On Instagram or Facebook, resharing creates a pointer back to the original. Delete the original and the share dies with it. Engagement accumulates in one place, on the author's copy.
On Tumblr, reblogging creates a new post on your blog containing the original plus the chain of everyone who passed it along. Each of those copies is a real post that can be liked, reblogged again and commented into. The original author's version is one node in a tree, not the trunk.
This is why a Tumblr post's reach has no ceiling and no decay. A post from 2014 can start moving again because one person with a following reblogged it this morning, and it will travel through their followers as if it were new.
It also explains why follower counts work differently here. A follower is not an audience you broadcast to — the dashboard is chronological, so most followers will never see most posts. A follower is a potential relay. The value is not in how many see it; it is in how many pass it on.
What the five buttons along the bottom do
The house is your dashboard: posts from blogs you follow, newest first, with no reordering.
The magnifying glass is Explore, which is where recommendation lives. Tumblr keeps its algorithmic surfaces in a separate tab rather than mixing them into the main feed, so nothing appears on your dashboard that you did not ask for.
The pencil opens the composer. The lightning bolt is Activity: likes, reblogs, new followers and asks, all in one list.
The account icon holds your blog or blogs — one account can run several, each with its own name and appearance, which is a feature people use far more heavily here than elsewhere.
The composer itself offers text, photo, quote, link, chat, audio and video as post types. They are mostly cosmetic now, but choosing the right one affects how the post renders in other people's dashboards.
Tags are the search engine, and the first five are the ones that count
Tumblr's search is weak and nobody relies on it. Discovery runs through tags.
When you tag a post, it appears in that tag's feed, which anyone can browse or follow. Following a tag puts matching posts into your dashboard even from blogs you do not follow, which is how most people find new blogs.
The constraint everybody learns late: only the first twenty tags on a post are indexed into the tag feeds, and in practice the first five carry nearly all the traffic. Tags beyond that are visible on the post but are not findable.
This is why Tumblr posts carry long trails of tags that read like commentary. The first few are real, categorical tags doing discovery work. The rest are the author talking to themselves, and everyone knows it.
Likes and reblogs are not two versions of the same thing
A like is private approval. It goes into your own likes list, the author sees it in their activity, and it does nothing else. It does not move the post.
A reblog republishes the post to your blog, where your followers can see it and reblog it onward. It is the only action with reach.
The culture around this is unusually explicit. Creators on Tumblr routinely ask people to reblog rather than like, and they are not being greedy — a thousand likes genuinely does nothing for a post's distribution, while ten reblogs from well-connected blogs can restart it.
If you are trying to build anything here, that is the number to watch. Likes measure whether people enjoyed it. Reblogs measure whether it will still be moving tomorrow.
The ask box, anonymous messages and why they exist
Every blog can have an ask box, which lets anyone send a question that the blog owner answers publicly as a post.
It can be set to allow anonymous asks, and the anonymity is genuine — the owner cannot see who sent it. This is simultaneously the warmest feature on the platform and the one that invites abuse, and every blog of any size eventually has to decide whether to keep anonymous asks open.
Asks are answered publicly by default, which turns a private question into content. A large share of what circulates on Tumblr started as somebody asking a blog something.
The controls live in your blog settings rather than in the app's main settings, which is where most people fail to find them. Each blog on your account configures its own.
Running more than one blog from one login
A Tumblr account is a login; a blog is a publication. One account can hold a primary blog and any number of secondary ones.
The primary blog can follow, like and send asks. Secondary blogs cannot follow anyone and cannot send asks — they can only post and reblog. This asymmetry catches out everyone who sets up a themed side blog and then wonders why they cannot follow anything from it.
Switching between them in the composer is a dropdown at the top. Posting to the wrong blog is the most common Tumblr mistake there is.
Secondary blogs can also be made private or shared with other accounts, which is why they are used for group projects, archives and anything the owner does not want attached to their main identity.
What a follower on Tumblr is actually worth
Less than on a ranked feed in one sense and more in another.
Less, because the chronological dashboard means a follower sees your post only if they happen to be scrolling when it lands. There is no second chance, no resurfacing, no notification for ordinary posts.
More, because every follower is a potential relay with their own followers behind them, and a reblog chain compounds in a way an algorithmic feed does not. One well-placed follower can be worth several thousand passive ones.
The implication for anyone building a blog here is that the early followers matter disproportionately, because nothing circulates until somebody with reach picks it up, and nobody with reach finds a blog that nothing has circulated from yet.
Breaking that loop is the whole of Tumblr growth, and it is why the platform rewards consistency in a tag far more than it rewards any single good post.
Questions people ask about the Tumblr app
Is the Tumblr dashboard algorithmic?
No. The main dashboard is reverse-chronological, showing posts from blogs and tags you follow in the order they were published. Recommendations live in the separate Explore tab.
What is the difference between a reblog and a share?
A reblog creates a full copy of the post on your own blog, which can then be reblogged onward. It does not point back at the original, so the post keeps traveling even if the author deletes their copy.
How many tags should I put on a post?
Only the first twenty are indexed and in practice the first five carry the discovery. Put the real categorical tags first and treat anything after that as commentary.
Can I follow someone from a side blog?
No. Only your primary blog can follow, like or send asks. Secondary blogs can post and reblog only.
Why do people ask for reblogs instead of likes?
Because likes do not move a post. A reblog puts it in front of a new set of followers; a like is private approval that reaches nobody.
Can people see who sent an anonymous ask?
The blog owner cannot. Anonymity on asks is real, which is why most established blogs eventually turn the option off.
Keep reading
- followers on a Tumblr blog — Nothing circulates until somebody with reach reblogs it, and followers on a Tumblr blog is the side of that loop you can act on directly.
- how a reblog chain actually spreads — The copy-rather-than-pointer design is the whole platform, and how a reblog chain actually spreads follows one through.
- building a following in a chronological feed — Growth here does not work the way it does on ranked platforms, and building a following in a chronological feed covers the difference.