Joker Chaos Timer vs Placard Boost
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
Joker Chaos Timer
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You don't control the clock. He does. Joker Chaos Timer is the anti-Pomodoro. Instead of rigid 25-minute blocks, you set a range ā say, 15 to 45 minutes ā and then you let go. The Joker decides when your session ends. Could be soon. Could be a while. You won't know until it happens. That's the point. WHY CHAOS WORKS Traditional timers create a false comfort. You glance at the clock, see 18 minutes left, and your brain checks out early. With Joker Chaos Timer, there's nothing to glance at. No countdown. No progress bar. Just you, your work, and the lurking knowledge that it could end any second ā or not. Psychologists call this variable interval reinforcement. Slot machines use it. Now your focus sessions do too. HOW IT WORKS 1. Set your minimum and maximum session length 2. Hit start ā the Joker picks a random end time within your range 3. Work. Forget the clock. Stay present. 4. When the Joker is done with you, he'll let you know. That's it. No phases, no stages, no system to learn. FEATURES ā Anti-Pomodoro variable timer with custom min/max range ā Joker animation that triggers at session end (surprise guaranteed) ā No visible countdown ā pure focus mode ā Session log so you can see how long you actually worked ā Notification support for background sessions ā No account. No subscription. No ads. ā Fully offline WHO IS THIS FOR? ā People who game their own timers ("just 3 more minutes") ā Anyone bored of the Pomodoro routine ā Creative workers who lose track of time anyway ā People who find chaos... motivating The Joker doesn't follow your productivity framework. He has his own. Start a session. See what happens.
Placard Boost
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Clean a little, without planning a lot. Placard Boost is a simple cleaning task generator for short moments during the day. Choose how much time you have, such as 3, 5, 10, or 15 minutes, and the app gives you one small, specific task that fits the time. Instead of trying to clean the whole home at once, Placard Boost helps you make quick progress with realistic mini-tasks. Use Placard Boost for: ⢠3-minute cleaning tasks ⢠5-minute quick resets ⢠10-minute home tidying ⢠15-minute cleaning sprints ⢠Kitchen tasks ⢠Bathroom tasks ⢠Desk cleanup ⢠Bedroom resets ⢠Small home chores ⢠Daily cleaning motivation KEY FEATURES ⢠Choose available time ⢠Get one specific cleaning task ⢠Use 3, 5, 10, or 15 minute options ⢠Start a quick home reset ⢠Avoid long cleaning plans ⢠Make small progress anytime ⢠Use simple task suggestions ⢠Keep chores realistic ⢠Refresh one area at a time ⢠Build a cleaner routine with short actions Placard Boost is designed as a personal home organisation and cleaning helper. It gives users small task ideas that are easier to start and finish within a short time. The app does not provide professional cleaning services, safety inspection, repair advice, chemical handling guidance, medical advice, or guaranteed cleaning results.
Screenshots
Verdict
The clearest difference is update cadence: Placard Boost at weekly against Joker Chaos Timer's fortnightly. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Joker Chaos Timer ships an update fortnightly, Placard Boost weekly. The most recent releases landed on October 1, 2026 and October 8, 2026 respectively.
| Parameter | Joker Chaos Timer | Placard Boost |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly | Weekly ā better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone |
| Requires iOS | 17.0 | 17.0 |
| Further details ā not scored | ||
| Size | 1 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Oleksandr Kornieiev | Ariel Murray |
In-app purchases
Joker Chaos Timer
No in-app purchases
Placard Boost
No in-app purchases
Questions
Is Joker Chaos Timer free?
Is Placard Boost free?
Do Joker Chaos Timer or Placard Boost have ads?
Which is updated more often, Joker Chaos Timer or Placard Boost?
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