Decisio vs Best Decision: Which Decision App Should You Install?

Q: Is Best Decision still actively developed?

Best Decision receives infrequent updates. Its core weighted-matrix algorithm has not changed. It works for its original scope but does not add new methodologies or AI features.

TL;DR — Best Decision is a cheap ($1.99 one-time), simple weighted-matrix app. Decisio uses AHP pairwise comparisons with consistency checking, plus AI analysis and a learning feedback loop, for $2.99/month or $19.99/year. Pick Best Decision if you want a one-time tool for occasional low-stakes choices. Pick Decisio if the decisions you make actually matter.

Quick Feature Comparison

Feature	Best Decision	Decisio
Methodology	Weighted matrix	AHP pairwise (Saaty scale)
Consistency checking	No	Yes — flags contradictions
AI criteria suggestions	No	Yes
Devil's Advocate (AI challenge)	No	Yes
Decision templates	No	15+ built-in
Playbook / learning system	No	Yes
Outcome tracking + calibration	No	Yes
Export	PDF only	PDF, Excel, Markdown
iCloud sync	No	Yes
Ongoing updates	Occasional	Active development
Price	$1.99 one-time	Free / $2.99-mo / $19.99-yr

When Best Decision Is the Better Choice

You want a one-time purchase and never want to think about subscriptions

If monthly subscriptions genuinely offend you on principle, Best Decision at $1.99 is a fair one-time purchase for a basic tool. You'll own it forever.

Your decisions are low-stakes and occasional

Choosing between two restaurants? Two weekend trip destinations? You don't need AHP math, AI analysis, or a learning loop. A simple weighted matrix does the job. Best Decision handles this well.

You specifically don't want AI involved

Some people want the pure math, no AI suggestions cluttering the interface. Best Decision is AI-free by design.

When Decisio Is the Better Choice

You're making a decision that matters financially or professionally

Job offers. Major purchases (car, home). Business strategy. Investment allocation. The cost of a bad decision here is measured in thousands of dollars or years of your life. A weighted matrix doesn't do enough. AHP with consistency checking catches the contradictions in your own thinking — a weighted matrix silently accepts them.

You want to improve your decision-making over time

Best Decision helps you with the current choice, then forgets everything. Decisio's Playbook captures Recipes (what worked) and Principles (lessons learned), and Outcome Tracking + Calibration Score show whether your judgment is actually improving. It's the difference between a calculator and a coach.

You want AI to surface blind spots

Devil's Advocate doesn't generate generic warnings. It reads your criteria, your options, and your scores, and constructs specific counterarguments. "Your top choice wins on salary but has your weakest score on career growth — you rated growth 8/10 in importance. Reconsider?" That's the kind of push-back that prevents expensive mistakes.

You want the methodology NASA, Boeing, and the World Bank actually use

AHP is not a marketing term. It's a formal multi-criteria decision analysis framework published by Thomas Saaty in 1977 and used by serious institutions for high-stakes choices. Weighted matrices are a simplification. Decisio is the only consumer app that implements AHP correctly, including the consistency ratio check that validates your own judgments.

The Pricing Math: $1.99 Once vs $19.99/Year

At face value, $1.99 one-time looks like a clear win over $19.99/year. But let's look at what you get per dollar.

Best Decision gives you a fixed tool. No updates to methodology, no new features, no AI improvements, no new templates. The app you install today is the app you use in 2030.

Decisio at $19.99/year ($1.67/month) gets you:

AHP methodology (which Best Decision doesn't have at any price)
AI suggestions that get better as the underlying models improve
New templates and features as they ship
Ongoing support and bug fixes
7-day free trial, so you only pay if it works for you

If you make even one decision per year that's worth more than $19.99 in time or money, Decisio pays for itself. For most people that's the job offer, the car, the vendor contract, the hire.

Frequently Asked Questions

Is Best Decision still actively developed?

Best Decision receives infrequent updates. Its core algorithm (weighted matrix) has not changed. It works well for its original scope but does not add new methodologies or AI features.

Can I use Decisio for free?

Yes. The free tier includes 3 full decisions with Simple Scoring, access to all 15+ templates, the Playbook, and Outcome Tracking. The 7-day free trial on the annual Pro plan adds unlimited decisions, AHP Pairwise, Devil's Advocate, and AI features.

What is AHP and why does it matter?

The Analytic Hierarchy Process (AHP) is a mathematical method for multi-criteria decision analysis developed by Thomas Saaty. Instead of rating options on each criterion directly, you compare them in pairs on a 1-to-9 scale. The math then derives precise priority weights. Crucially, AHP calculates a consistency ratio that flags when your own judgments contradict each other — a failure mode that simple weighted matrices silently ignore.

Which app is better for group decisions?

Neither Best Decision nor Decisio is built primarily for real-time group voting. Decisio supports exporting PDFs and Markdown to share your analysis with a team. If you need synchronous group voting, look at specialized tools like ChoiceMap.

Does Decisio work offline?

Yes. The AHP math, templates, and Playbook work offline. AI features require either Apple Intelligence (on-device on iOS 18.2+ supported devices) or an internet connection if you're using OpenAI with your own API key.

Try Decisio free for 3 decisions

No account. No credit card. 7-day free trial on annual Pro.

Download on the App Store

iOS 17+ · Works on iPhone and iPad