Dopamine Cannon vs Rhevio
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
Dopamine Cannon
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Struggling to get started? Stop scrolling and start firing. Dopamine Cannon turns your mundane to-do list into a visceral, gamified experience. Instead of ticking boxes, you are loading artillery. Instead of "selecting" a task, you are spinning the cylinder of a high-caliber productivity weapon. How it Works: 1. Load the Armory: Add your micro-tasks (e.g., "Drink Water", "10 Squats", "Wipe Desk"). 2. Spin the Cylinder: Swipe left or right to randomize your target. The app learns what you avoid and helps you tackle it. 3. Prime the Cannon: Physically drag down the heavy bolt to load the mechanism. Feel the haptics build up. 4. FIRE: Release to lock in your task. The cannon fires, and your 5-minute focus timer begins. 5. Earn Dopamine: Complete the mission to earn points and track your "Combat Record." Key Features: 1. Satisfying Physics: Heavy haptic feedback and fluid animations make every interaction feel mechanical and powerful. 2. Weighted Randomization: The smart cylinder prioritizes tasks you haven't done in a while. 3. Combat Record: Track your daily, weekly, and monthly performance with detailed stats. 4. Focus Timer: A built-in "Fuse" timer locks you into the task until the mission is complete. 5. Dopamine Score: Watch your score rise as you build momentum. Don't just do your chores. Annihilate them. Download Dopamine Cannon today.
Rhevio
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Rhevio is a task planner for adults with ADHD. Say everything on your mind, and it shows you one task, not a list of forty. Tap Start for 2 minutes. If you stop there, that's still a win. You have probably tried planners before. They worked for a week or two, then you missed a day, the list filled with red, and the app became one more thing to avoid. Rhevio is built around those days. Nothing counts the days you missed, and nothing breaks when you come back. "I built Rhevio for my family. I watch how they use it, and I keep improving it." - Rhevio's founder HOW IT WORKS 1. Empty your head. Tap the mic and say everything at once. Messy is fine. Rhevio turns it into separate tasks and picks one to do first. 2. Get one thing. The Now screen shows a single task in big type with roughly how long it takes. Not this one? Skip to the next. 3. Start small. Tap Start and a 2-minute timer runs. Keep going if you want, or stop. Rhevio counts it as a win either way. WHAT'S INSIDE ⢠Now: one task at a time, with Start, Not this one and Smaller. Smaller shows just the next step of a task that has steps. On iPhone models with Apple Intelligence, it can also break a vague task into small steps. ⢠Energy from sleep: if you allow Apple Health, Rhevio can suggest today's energy level from how you slept and pick tasks to match. You can turn it off in Settings. ⢠Brain dump: say it or type it. Phrases like "every Monday" become routines, "when I get home" ties a task to a place, and "at 9:30" sets a time. Voice works in many languages. Routine and place phrases are English for now. ⢠A plant that grows: every finished task waters it. Your first win sprouts it, and it never dies. Finished plants go to your garden. ⢠Routines that bend: daily, weekly, monthly or every few days, repeating from when you last did something, not from the calendar. Mark a routine as medication for a simple did-I-take-it checklist (a checklist, not medical advice). A dose is never counted as a win or a miss. ⢠Places: tie a task to a place and it waits until you arrive. ⢠Evening reflection: a short "How was today?" each evening, then a look at your week. No scores. ⢠Widgets and controls: four widgets for your Home and Lock Screen (next task, medication, routine progress, mood check-in), Control Center controls to capture a task, start focus or check in, and Live Activities on your Lock Screen. All free, except the focus timer Live Activity, which is Premium. ⢠Focus alarm: longer focus sessions can end with a real alarm, even on silent, once you allow it. ⢠Your look: System, Light or Dark with four accent colors. All free. FREE, NO ACCOUNT No sign-up. Free to use, with no time limit: ⢠Unlimited tasks and brain dumps ⢠Smaller, the plant and garden ⢠Evening reflection and your week ⢠All themes, the 4 widgets, Control Center controls and Live Activities (except the focus timer one) ⢠3 active routines at any frequency and 1 place PREMIUM Premium adds unlimited routines and places, iCloud sync across your devices, sending tasks to someone, and the focus timer Live Activity on your Lock Screen and Dynamic Island. Monthly and yearly plans both come with a 7-day free trial, one free trial per Apple Account. Subscriptions renew automatically until cancelled. Cancel in your Apple Account settings at least 24 hours before the trial ends to avoid being charged. Rhevio is a productivity tool, not a medical device. It doesn't diagnose or treat ADHD or any other condition. Rhevio does not replace treatment, medication or advice from your doctor. Requires iOS 26 or later. Terms of Service: https://rhevio.app/terms Privacy Policy: https://rhevio.app/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: Dopamine Cannon at none against Rhevio's 2. On price, ads, device support and iOS requirement 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. Rhevio sells 2 in-app purchases, starting at $4.99 per month. Dopamine Cannon asks for nothing beyond the download.
| Parameter | Dopamine Cannon | Rhevio |
|---|---|---|
| Price | Free | Free |
| Update frequency | ā | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No ā better | Yes |
| Devices | iPhone, iPad ā better | iPhone |
| Requires iOS | 26.0 | 26.0 |
| Further details ā not scored | ||
| Size | 5 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | YUWEI JIANG | SOLARTUNE |
In-app purchases
Dopamine Cannon
No in-app purchases
Rhevio
- Rhevio Premium7 Days trial$4.991 Month
- Rhevio Premium - Annual7 Days trial$34.991 Year









