Two quiz-to-unlock blockers. One draws on your notes.

Hopopop is the closest thing to Popcue that anyone else ships, and this page starts by saying so. It asks you a question before the app opens, it has a skip after three attempts rather than none, and it works on iPhone and iPad as well as Android. What it cannot do is ask you something from material you already keep, and that is the whole of the difference.

Last reviewed 1 October 2026

Popcue vs Hopopop, in short

Both Popcue and Hopopop ask you a question before an app opens, and both work on Android. Hopopop draws its questions from a bank it ships: mental arithmetic at three difficulty levels, general knowledge across ten or more categories, and a geography map quiz, which its changelog records as growing from about 700 to about 3,600 questions. Popcue draws its cards from Notion, AnkiDroid, or an MCP-compatible LLM endpoint you already run.

Hopopop has an iPhone and iPad app, and Popcue does not. That is a real gap, not a footnote. If you want the mechanic on a phone that is not an Android phone, Hopopop ships it today. Popcue is Android and web, and says so everywhere rather than implying otherwise.

Hopopop has a skip; Popcue does not. Hopopop's own support page documents skipping after three attempts, with no XP earned and the app still blocked for that session. Popcue has no skip control on either step, and no attempt counter either.

Hopopop's price could not be reduced to one figure. Its support page and its own store listing quote different monthly and yearly prices in euros, so there is no number on this page. Popcue is free forever when your cards come from your own tools, and Pro is ₹149 a month or ₹999 a year.

The table

The same eleven rows as the full comparison, checked against each product's own published material on 1 October 2026. A dash means partly, and the reason is under the table.

Swipe the table sideways to see every competitor

Feature comparison between Popcue and ten competing app blockers, verified 2026-10-01
Feature	Popcue	One Sec	Hopopop	Opal	ScreenZen	FocuzPass	App Pause	Study Lock	AnkiBlock	Tok Blok	LLLock
Wraps any app you choose	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Puts a question in front of you before you get in	Yes	Partly	Yes	No	Partly	Yes	No	Yes	Yes	Yes	Yes
The question comes from material you already keep	Yes	No	No	No	No	No	No	No	Yes	No	No
Works from a live tool, not an exported file	Yes	No	No	No	No	No	No	No	Yes	No	No
Interrupts at a per-launch ratio, not a daily quota	Yes	No	No	No	No	No	No	Yes	No	No	Yes
No skip control on either step	Yes	Partly	Partly	Partly	Partly	No	Yes	Partly	Partly	Yes	Yes
Spaced repetition scheduling	Yes	No	No	No	No	No	No	No	Partly	No	Partly
Usable free, with no subscription	Yes	Partly	Partly	Partly	Yes	Yes	Yes	Partly	Yes	Partly	Partly
Android	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	Yes	No	Yes
iOS	No	Yes	Yes	Yes	Yes	No	No	Yes	No	Yes	Yes
Blocks websites	No	Yes	No	No	No	No	Yes	No	No	No	No

What “partly” means, and where each claim was checked

One Sec: Puts a question in front of you before you get in: One Sec documents a Lengo vocabulary integration and a conversational reflection prompt, so it can add a study step. Neither asks you something drawn from your own notes.
ScreenZen: Puts a question in front of you before you get in: ScreenZen lets you write a custom prompt to answer before unlocking. That is a prompt gate rather than graded recall: there is no answer to get right.
One Sec: No skip control on either step: One Sec’s interventions are designed to be stepped through, but a reflection prompt is an activity rather than graded recall. There is no answer to get right and then rate.
Hopopop: No skip control on either step: Hopopop is the closest thing to Popcue in this category, and its questions are built in: mental arithmetic at three difficulty levels, general knowledge across ten-plus categories, and a geography map quiz. Its own support page documents the skip: you can skip after three attempts, you earn no XP for it, and the app stays blocked for the rest of that session. The gate is real and it is not graded recall of anything you wrote.
Opal: No skip control on either step: Opal has a Hard Mode its own site describes as "no way out, you can’t turn Opal off". That is stricter than Popcue, and it is worth knowing that is the trade you are making.
ScreenZen: No skip control on either step: ScreenZen documents a limited number of unlocks, so the gate holds. The prompt is self-graded, so nothing records whether you got it right.
Study Lock: No skip control on either step: Study Lock earns screen time back by answering correctly, so the gate is real. But it is a time debt, not a block. Get it wrong and you owe more time, which is a different mechanic from Popcue’s.
AnkiBlock: No skip control on either step: AnkiBlock offers a 60-second temporary unlock, up to three times a day. This is the clearest no-skip difference in the table, and AnkiBlock’s own listing documents the bypass plainly.
AnkiBlock: Spaced repetition scheduling: AnkiBlock schedules nothing itself. It delegates to AnkiDroid, so it inherits SM-2 from the deck you already keep.
LLLock: Spaced repetition scheduling: LLLock repeats words before you would forget them. It does not document which algorithm it uses.
One Sec: Usable free, with no subscription: One Sec blocks one app free and sells the rest. Its own pricing page returned a 404 at the date above, so no figure is quoted here.
Hopopop: Usable free, with no subscription: Hopopop documents a seven-day trial with no card needed, and no permanent free tier anywhere on its site. Its pricing is quoted in euros, and the figures differ between its own support page and its own store listing, so none are reproduced here.
Opal: Usable free, with no subscription: Opal allows one rule free. The rest is $99.99/year, $239/year, or $399 lifetime.
Study Lock: Usable free, with no subscription: Study Lock is free up to an allowance, then $34.99/year or $5.99/month.
Tok Blok: Usable free, with no subscription: Tok Blok has a free tier and a seven-day trial. The App Store lists monthly and yearly subscriptions plus coin packs, and its own blog quotes a different annual price than the store does, so neither figure is repeated here.
LLLock: Usable free, with no subscription: LLLock has in-app purchases. Its exact price was not verifiable at the date above.

Every capability claim above was checked on 2026-10-01 against the product’s own public listing: One Sec, Hopopop, Opal, ScreenZen, FocuzPass, App Pause, Study Lock, AnkiBlock, Tok Blok, LLLock. We are not affiliated with any of them. If something here is out of date, tell us and we will correct it and change the date.

Where Hopopop is the better choice

If you want it on an iPhone

Hopopop ships on iPhone and iPad, and Popcue does not. Popcue's position is that Android is where it can build a real interruption screen, because iOS restricts what a third-party app can put on screen when another app opens. If you are not on Android, Hopopop is the answer to the question you are actually asking.

If you want the game

Hopopop is built around XP, levels and a mascot, and its questions are a game with a score. Popcue has streaks, mastery and a twenty-six-week heatmap, which is a different kind of record: it measures what you retained rather than what you earned. If a points system is what keeps you going, Hopopop has one today.

If you want a skip you are allowed to use

Hopopop lets you skip after three attempts at the cost of your XP, and that may well be the kinder design for you. Popcue's position is that a skip turns a lesson into a speed bump. The honest version is that this is a preference, and Popcue does not win it by argument.

Where Popcue differs, and it is not close

Three rows on the table separate the two products, and they are the three that the rest of this page is about.

The question comes from your material

This is the row that decides it. Hopopop's questions are built in, and every documented type is general knowledge: arithmetic, trivia, geography. Popcue's cards are drawn from tools you already keep, live and uncapped, and every card shows where it came from.

The difference is not that one is harder. It is that Hopopop is testing you on facts it chose, which are facts you did not decide to learn and will not be tested on again. Popcue is testing you on the thing you were reading at eleven at night. If the material is your coursework, your project notes or your own reference pages, only one of these two apps can ask you about it, and it is not Hopopop.

Every rating feeds a scheduler

Hopopop records that you got an answer right, and its own copy says you will not see the same question twice. That is sampling, not scheduling. Popcue runs SM-2 over every rating you give, so a card you keep getting right comes back further and further apart, and a card you keep missing comes back tomorrow.

The difference matters if you are learning anything with more than one session in it. A blocker that shows you a general-knowledge question teaches you the answer to that question. A scheduler over your own material teaches you the material.

It reads a live tool, not a file

Popcue connects to a live Notion page or a live AnkiDroid deck, and reads them as they are. You choose the pages, and the card is built from what is in them now. There is no export step, no re-import, and nothing to keep in sync by hand.

AnkiDroid is the exception worth naming: Popcue reads your existing decks and keeps AnkiDroid's own SM-2 scheduling rather than replacing it. If you already keep cards in AnkiDroid, you do not have to move them to use the interrupt.

What neither of us can tell you

Both products are young, and this page is written by one of them. Here is what that limits.

We did not install either app: Everything above was read from each product's own website and its store listing on 1 October 2026. Where a product documents nothing, this page says so rather than guessing, which means an undocumented feature would not appear here. Absence of a claim is not proof of absence in the app.
Hopopop's question bank may change: Its changelog shows the bank growing from about 700 to about 3,600 questions, so this is an actively developed product. If a feature that matters to you is not in this page, it may exist now.
Popcue is not shipped: Popcue is Android and web, not yet on the Play Store, with no store listing and no public ratings or install count to put in a column. Hopopop's listing shows 100+ downloads and a rating visible only on one regional storefront. Neither number is a reason to choose.
The permission question is real: Popcue asks for usage access and draw over other apps. Hopopop's own support documentation describes accessibility services on Android. Both are sensitive permissions and both are readable in Android Settings before you grant anything. If you have an opinion about which is acceptable, read the setup page, which shows both of Popcue's permissions and how to check them yourself.

Where this came from

Two sources, both read on 1 October 2026: hopopop-app.com, including its support page, and Hopopop's Google Play listing. Everything we could not read there is not on this page. Popcue is not affiliated with Hopopop, and if you own it and something here is wrong, tell us and we will change it and move the date.

Four questions

Is Hopopop better than Popcue?

It depends on two things you cannot check from a website. First, Hopopop is on iPhone and iPad as well as Android, and Popcue is Android and web only. Second, if you want to be quizzed on arithmetic and general knowledge, Hopopop ships that today and Popcue does not. If you want to be quizzed on your own notes, Popcue is the only one of the two that can do it, because Hopopop draws its questions from a bank it ships rather than from a tool you already keep notes in.

What questions does Hopopop ask?

Hopopop asks built-in questions. Its published list covers mental arithmetic at three difficulty levels, general knowledge across ten or more categories, and a geography map quiz, and its changelog records the bank growing from about 700 to about 3,600 questions. None of that material comes from you. There is no documented way to point Hopopop at a Notion page, an AnkiDroid deck or your own notes.

Can you skip Hopopop?

Hopopop documents a skip. Its own support page says you can skip after three attempts, that you earn no XP for doing so, and that the app stays blocked for the rest of that session. Popcue has no skip control on either step of its card, and there is no counter and no penalty, because there is nothing to skip to.

How much does Hopopop cost?

We could not give you one figure, because Hopopop does not publish one consistent figure. Its support page and its own store listing quote different monthly and yearly prices in euros, and neither matches the in-app purchase list. What Hopopop does document is a seven-day trial with no card needed. Popcue is free forever when your cards come from Notion, AnkiDroid or your own LLM, with no cap on how many you connect, and Pro is ₹149 a month or ₹999 a year.

Where to go next

The full comparison Eleven rows, ten rivals, and the row where Popcue says no. Popcue vs One Sec The best-made app in the category, and the difference between friction and recall. How Popcue works The per-launch ratio, the two taps, and why there is no skip button. Connecting Notion The row above, made concrete: what a card out of your own page looks like. Frequently asked questions Ten questions, each answered in one standalone paragraph.