Free Tool
App MVP Feature Prioritizer
List your app's candidate features, rate each on value, effort, and confidence, and get a scored, prioritized MVP scope — so you build the right things first.
Prioritized features
Add a few features (or load common ones) to see your prioritized MVP scope.
Value vs effort
Recommended MVP scope
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The column everyone leaves blank
MoSCoW sorts every feature into Must, Should, Could and Won’t have this time. It has been used in software delivery since the 1990s and survives because it forces a decision other methods let you avoid.
List everything above, then be honest about the Won’t haves. That column is where the schedule is actually decided.
Four categories, twelve features
A food delivery app, sorted. The estimates are in person-weeks and illustrative — what matters is the shape, and the shape is always the same: Must is the biggest column, and Won’t is the one that makes the release possible.
- Must have is the release. Without it there is nothing to ship.
- Should and Could are the buffer, in that order — the first things to move when estimates slip.
- Won’t have this time is not a rejection. It is a decision with a date on it.
Example: food delivery app, 12 features
Must 9 wk
Should 4 wk
Could 3 wk
Won’t 11 wk
Must holds 56% of release effort. Estimates in person-weeks, illustrative.
An unwritten exclusion is not an exclusion
Won’t have is the whole point of the method and the one teams leave blank — which is how a feature nobody planned reappears in week six as something everyone assumed was included.
- Write down what you are deliberately not doing, in the release notes, before the build starts.
- Get it agreed by everyone who signs off. A list one person keeps is not an agreement.
- Revisit it after launch, with real data — which is the difference between “not now” and “never”.
No more than 60% in Must have
If everything is a Must, you have not prioritised — you have made a list. Teams that classify 90% as Must always ship late, because the method never actually removed anything.
- At or under 60%, the rest of the effort is buffer that can move when estimates slip.
- Over it, there is nothing left to give, and the first delay goes straight into the launch date.
- Move the slider and read the verdict — it is the same test to run against your own list.
RICE ranks what MoSCoW only sorts
MoSCoW puts features in buckets. RICE orders them inside one — which is what you need when six things are all Must haves and you can only build four.
- RICE = (Reach × Impact × Confidence) ÷ Effort.
- Confidence is what makes it useful. A feature with huge projected impact and 20% confidence scores below a modest one you are certain about.
- That is usually the right call and rarely the instinctive one. Raise the confidence on AI recommendations and watch the ranking move.
| Feature | Impact | Confidence |
|---|
Four numbers worth keeping
Why Parix.ai gives this away
An MVP is not a small version of the finished product — it is the smallest thing that proves whether people want it, and that distinction is usually the difference between eight weeks and eight months. Settling it costs us nothing and saves the project a quarter.
Prioritise my featuresWho uses it
Product managers agreeing a release with stakeholders, founders cutting an MVP to something buildable, and agencies fixing scope before a quote.
Then price it
Put the surviving list through the MVP Cost Estimator or the App Cost Calculator, and turn it into a client document with the Agency Project Quote Calculator.
The test for every feature
Does this test the core assumption? If not, it belongs in Won’t have — however obvious it is that the product will eventually need it.