Best Decision vs Arbitrium
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Best Decision
This app helps you make objective choices by analyzing your options based on your defined criteria and their importance. It guides you through a simple three-step process to identify the best decision and presents results in a clear, sorted list.
- 3-step decision making process
- Define custom criteria and importance
- Unlimited decisions, options, and criteria
- Decision templates
- Data sync across devices via iCloud
- Secure with Touch ID/Face ID
- Share results via message, email, PDF
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Buying new MacBook? Wondering which house is best for your family? Choosing holidays: tropical beach or a spirited trip through Asia? Always make Best Decision! Best Decision is an extremely easy choice-making analytics app. It will tell you which decision is objectively the best, then YOU choose whatever you please. The decision making process in Best Decision is trimmed down to the necessary minimum. It’s a 3-step-down staircase: 1. enter all the choices you’re considering 2. enter all the relevant criteria and their importance 3. estimate how well each option meets each criterion Best Decision takes it from here and the math does the job. As an outcome, you get plain & simple result: your Best Decision and all the other options in order of how well they suit you. So if you are about to make an important decision, let Best Decision's algorithms do the hard work for you. GET IT NOW! Most important FEATURES of Best Decision: 1. UNIVERSAL APP for all your iOS and macOS devices (iPhone, iPad, iPod Touch and Mac) 2. uses iCloud to automatically SYNC your data between all your devices 3. suitable for COMPLEX and SIMPLE DECISIONS 4. highly FLEXIBLE: + can store unlimited number of decisions, options and criteria + is suitable for different types of decisions + allows to define personal criteria together with their importance + allows to modify all previous inputs + allows to change the order of decisions, options and criteria (tap and hold) 5. Decision TEMPLATES 6. Touch ID, Face ID or password-protect so YOU DECIDE who can access your decisions 7. USER FRIENDLY: guides you easily through the decision making process 8. presents OBJECTIVELY BEST OPTION in comparison with all other sorted by rating results 9. you can SHARE calculated verdict by Message, send it by mail, generate to PDF or save to Photos 10. use 3D Touch ACTIONS on icon to quickly go to the last 3 decisions or create a new one 11. find any decision in your SPOTLIGHT SEARCH by name or considered option 12. work more efficiently with SLIDE OVER and SPLIT VIEW on your iPad
Arbitrium
This app assists in making rational decisions by allowing you to define criteria and rate your options. It uses a weighted decision matrix to help you identify the best choice for various life scenarios.
- Define decision criteria
- Rate available options
- Weighted decision matrix
- Identify best choice
- Save and manage decisions
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We often have to take decisions. Arbitrium is an app that will help you take the right one in a simple and rational way. Establish the criteria you need to consider and then rate each option you have available. The option with the highest score will be the best one. Arbitrium is based on the weighted decision matrix concept and will help you take decisions such as: Which car should I buy? Which bank should I choose for a mortgage? Where should I go on vacation? Which job offer should I accept? Which nursery should I choose for my child?
Screenshots
Verdict
The clearest difference is update cadence: Best Decision at every 2 months against Arbitrium's every 28 months. Best Decision also leads on ratings volume (98 vs 11). Arbitrium's advantage is rating (4.9 vs 4.6) and review sentiment (100% vs 82%). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Best Decision sells 1 one-off in-app purchase and Arbitrium sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Arbitrium holds the better App Store score, 4.9 against 4.6. That said, the two scores are not equally well evidenced: Best Decision has 98 ratings behind it against 11, so its average is the more settled of the two. Written reviews point the same way: 82% of Best Decision's written reviews are positive against 100% of Arbitrium's.
Best Decision ships an update every 2 months, Arbitrium every 28 months. The most recent releases landed on August 31, 2026 and September 10, 2026 respectively.
| Parameter | Best Decision | Arbitrium |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (98 ratings) | 4.9 (11 ratings) — better |
| Positive reviews | 82.1% of reviews | 100.0% of reviews — better |
| Number of ratings | 98 — better | 11 |
| Update frequency | Every 2 months — better | Every 28 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Requires iOS | 16.6 | 15.6 — better |
| Further details — not scored | ||
| Size | 9 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Lukasz Kowalski | The Lost Project |
Customer experience
Best Decision
Arbitrium
Bugs and requests
Best Decision
Reported bugs
10 issues- App keeps crashing when entering choices
- N/A option negatively affects results
- Inability to sort/rearrange items in a list
- Verdict displayed incorrectly (repeated or missing options)
- Option C score not displayed correctly
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- Option C marked as best with incorrect score
- Emailing results doesn't work
- Syncing with iCloud stopped at 20 items
- Poor user interface: clicking decision text renames it
- Verdicts do not show properly, sometimes missing or repeated
Requested features
22 requests- CSV export for analysis
- Display logic in a simple table
- Sort alphabetic or manually
- Copy and paste projects
- Build in a radar / gap analysis chart
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- Create correlation line chart
- Manually change order of items
- Sort Criteria list
- Export and import information without iCloud
- 3D Touch in Criteria list for ratings
- Probability value of options for SWOT analysis
- Ability to email whole decision
- Sync between devices
- Evaluate trade-offs
- More specific numbering by use of scaling
- Graphic like diagrams
- Allow less than six criteria
- Final analysis not leaving out options
- List options in numerical order
- Reorganize order of criterion/options
- Tap option name to scroll full name
- Improve poor user interface (e.g., renaming text)
Arbitrium
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Best Decision
- Golden Membership One-time Pay$1.99
Arbitrium
- PRO Mode$0.99






