Iro AIIro AI Blog
Morso is a microlearning and AI-course app, and if you are looking for an alternative you will find a dozen pages listing the same eight names with confident feature tables. We are going to do something more useful: give you the four checks that separate a microlearning app you will still be using in March from one you will delete in a week.
Editorial note: Iro AI is our app. Where it appears below we say so, and it has to earn its spot by the same criteria as everything else.
Pick by subject, not by app. Microlearning is a format, not a category, and the format is roughly the same everywhere: short daily sessions, a streak, a progress bar. What actually differs is what you are learning and whether the session makes you do something.
So: Iro AI if the subject is using AI tools well. Brilliant for maths, logic and computer science. Khan Academy if you want academic foundations and no bill. And if what you liked about Morso was generating a course on any topic you can name, the closest thing on that specific axis is NerdSip, which we have written about separately.
The reasons people give for leaving any app in this category are remarkably consistent, and only one of them is really about the app.
Iro AI turns ideas like the ones in this post into 5-minute exercises with feedback. Free tier, Pro from $4.17 a month ($49.99 a year, 7-day free trial).
Run these on any candidate, including ours. They are ordered by how much they predict.
Open one lesson. Count how many seconds you spend consuming versus producing. If the whole session is text and the interaction is a multiple-choice check on what you just read, the app is a reading product with a quiz attached. That is fine for interest and poor for skill. A doing-shaped session asks you to produce something, then tells you what was wrong with it.
Generated content wins on breadth: type any topic and get something back. Curated content wins on depth, because someone who has taught the subject knows which mistakes learners actually make and can build an exercise that catches them. Neither is better in the abstract. Match it to whether you are exploring or committing.
Not whether one exists. Can you complete a real lesson, including the feedback, without a card? A free tier that shows you a tour of the interface tells you nothing about the thing you would be paying for.
Everyone misses. Some apps reset your streak to zero and quietly make it your fault; some hand you a freeze; some do not use streaks at all. There is no correct answer, but there is a correct answer for you, and it is worth knowing before you have thirty days invested.
Same discipline as the rest of this site: we publish what we could verify and mark what we could not.
| App | Best for | What you get | Free tier | Platforms |
|---|---|---|---|---|
| Morso | Microlearning across topics | Microlearning and AI-generated courses | Not verified by us | Not verified by us |
| Iro AI (ours) | Using AI tools well | 29 curated paths, 477 lessons, 2,700+ exercises across 24 exercise types | Every path open, paced by a Battery that gives a lesson a day and recharges overnight | iOS and a free web app with no signup. Android in development. |
| Brilliant | Maths, logic, CS foundations | Curated interactive problem sets | Not verified by us | iOS, Android, web |
| Khan Academy | Academic foundations | Curated courses and exercises, from a non-profit | Free, with no paid tier | iOS, Android, web |
About the blank cells. Anything marked "not verified by us" is something we could not confirm from the company's own store listing or website at the time of writing. Most comparison pages fill those cells from affiliate sites, which is how a wrong price ends up repeated on twenty pages. We would rather leave a gap and send you to the listing. Check the renewal price and the cancel path before you enter a card, on any app here, including ours.
Iro is the answer to check one. The sessions are doing-shaped by construction: the Prompt Lab has you write a real prompt and then scores it on clarity, specificity, constraints and context, telling you which part was weak. Other exercise types have you spot a fabricated citation inside a plausible answer, choose between two tools and find out why one loses, or repair a prompt that is nearly right.
On check two, it is curated: 29 paths, 477 lessons and 2,700+ exercises across 24 exercise types, covering ChatGPT, Claude, Gemini, Perplexity, prompt engineering, agents and automation. Custom Paths exist for generating a path on a topic you name, so the generated format is available; it just sits alongside the curriculum rather than being the whole product.
On check three, every path is open from the start and paced by a Battery that gives you a lesson a day and recharges overnight, so the free tier is a real lesson rather than a preview. On check four, the Battery is the answer: missing a day costs you a day, not a number you were emotionally attached to.
The web app at app.tryiro.com is the fastest way to run check one yourself: open a lesson and see whether it makes you produce anything.
Iro AI turns ideas like the ones in this post into 5-minute exercises with feedback. Free tier, Pro from $4.17 a month ($49.99 a year, 7-day free trial).
It depends on the subject you want. For using AI tools well, Iro AI: 29 curated paths, 477 lessons and 2,700+ hands-on exercises in five-minute sessions. For maths, logic and computer science, Brilliant. For academic foundations at no cost, Khan Academy. If what you specifically wanted was generating a course on any topic you type, that is a different product shape and NerdSip is the closer comparison.
We could not verify Morso's current pricing or free tier from the company's own listing, so we are not going to print a figure. Prices in this category change often and vary by region, and a large share of the pages that quote them are copying affiliate sites. Open the App Store listing, read the in-app purchase section, and check the renewal price rather than the intro price.
Open one lesson and count how much of it you spend consuming versus producing. Reading-shaped sessions build familiarity; doing-shaped sessions build skill, because you find out what you got wrong while it still matters. Then check whether the free tier lets you finish a real lesson including the feedback, and what happens on a day you miss. Those three answers predict more than any feature list.
Not worse, different. Generated content is unbeatable for breadth: you can get a structured introduction to almost anything in seconds, which is genuinely useful when you are exploring. What it cannot do is know which mistakes learners actually make on a subject, or design the exercise that catches them, because nobody taught it that subject specifically. For something you intend to get good at rather than just meet, curated goes further.
Yes, in format: five-minute daily sessions, streaks, XP and six ranks. In scope it is narrower than most, covering one subject, using AI tools well, across 29 curated paths and 2,700+ exercises. That narrowness is the point. It also runs as a free web app at app.tryiro.com with no signup, so you can judge the format in about two minutes.