Comparison

Decision tree vs Trialist

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Decision tree

Visually build and manage complex decision trees to analyze choices and their potential outcomes. Automatically recalculates values and identifies the optimal strategy based on costs, probabilities, and net values. Supports intricate trees of any depth for comprehensive analysis.

Highlights
  • Intuitive visual decision tree construction
  • Define alternatives with costs
  • Specify outcomes with payoffs and probabilities
  • Dynamic arrangement of tree elements
  • Automatic value recalculation
  • Identification of optimal strategy
Features
Read full description

The Decision tree app offers a powerful visual interface that allows you to intuitively build and manage complex decision trees. You can easily annotate new alternatives and outcomes, adjust their levels within the hierarchy, and even drag entire branches to different positions within the tree. The app automatically recalculates all necessary values to reflect any changes, ensuring that your analysis stays accurate and up-to-date. Each alternative in the tree has a cost, which represents the expected expense of pursuing that option—like $220,000 for opening a new branch in another city. These alternatives are represented as blue-collar elements within the tree and can lead to multiple outcomes. For instance, the outcome of opening a new branch might include a potential increase in turnover, but also the risk of reduced quality due to management challenges. Each outcome has an associated value, which can be positive or negative, and a probability indicating the likelihood of that outcome occurring. The probable value of each outcome is calculated by multiplying its value by its probability. The net value of an outcome is determined by the weighted influence of the outcome’s value on the overall expected value of the corresponding alternative, minus the cost of implementing that alternative. The Decision tree app supports decision trees of any depth, where after an outcome, you may encounter another decision alternative, which in turn may have its own outcomes, and so on. This capability allows you to create and explore highly intricate decision trees. The optimal strategy is identified by tracing the path from the root alternative through the branches that lead to the highest net value. This path represents the best course of action based on a comprehensive analysis of all possible alternatives and outcomes—a task that would be virtually impossible to perform mentally or with a simple paper and pencil due to the extensive calculations required. With the app’s dynamic interface, you can quickly adapt to changing scenarios, and the app will handle all the complex calculations automatically. The complexity of decisions involving significant uncertainty brings challenges such as unpredictable consequences, multi-layered factors, potential reduction of uncertainty through additional information and the influence of the decision maker's attitude to risk. To manage this complexity, users often look for best practices. Leverage the effectiveness of decision making by applying a decision tree, a proven analytical approach that provides clarity and leads to informed decisions in the midst of uncertainty. Features: -Intuitively construct a visual decision tree for a comprehensive decision analysis. -Generate alternative elements with detailed descriptions and associated costs. -Define outcomes for each alternative and specify payoff amounts and probabilities for thorough evaluation. -Dynamically arrange elements to create parent-child relationships at any depth in the tree. -Construct sequential decision chains that allow subsequent decisions based on specific outcomes. -Enter the cost of each alternative to accurately assess the impact of the decision. -Specify nominal profit values and probabilities for each outcome to refine the decision criteria. -Automatically calculate the path value resulting from the multiplication of value and probability. -Calculate the net profit, i.e. the result obtained by subtracting the cost of the alternative from the path value of the outcome. -Automatically visualize the best strategy based on the criteria for the optimal expected value.

About

Trialist

Connects students with academic research studies and trials. Students can participate flexibly and earn rewards, while research companies can efficiently gather data from eager participants.

Highlights
  • Connects students with research studies
  • Flexible participation for students
  • Earn rewards for participation
  • Efficient data gathering for companies
  • Access to cutting-edge research
Features
Read full description

Trialist: Shape Research, Earn Rewards Trialist is more than a platform; it’s an opportunity to shape the future. Whether you’re a curious student or a research company seeking participants, Trialist connects you to cutting-edge studies and trials. For Curious Students: Flexible Participation: Designed to fit around busy class schedules and extracurricular activities. Participate in studies on your terms – no rigid commitments. Intellectual Adventure: Engage with diverse studies across disciplines. Expand your horizons and contribute to groundbreaking research. Earn Rewards: Your valuable time deserves compensation. Receive rewards – whether it’s cash, gift cards, or exclusive perks. For Research Companies: Efficient Data Gathering: Trialist efficiently connects you with suitable candidates for your studies or trials. Cutting-Edge Insights: Access a pool of eager students ready to contribute to your research. Join Trialist today and be part of shaping the future!

Screenshots

Decision tree4 screens
Trialist4 screens

Verdict

The call

The clearest difference is in-app purchases: Trialist at none against Decision tree's 2. Trialist also leads on iOS requirement (13.0 vs 17.0). On price, rating, ratings volume and ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Decision tree sells 2 one-off in-app purchases. Trialist asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 1.0 for Decision tree against 1.0 for Trialist. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Scorecard2 real differences · 8 level
Decision tree versus Trialist: the parameters behind the verdict, then further details
ParameterDecision treeTrialist
PriceFreeFree
Rating1.0 (1 ratings)1.0 (1 ratings)
Positive reviews0.0% of reviews—
Number of ratings11
Update frequencyFortnightly—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.013.0 — better
Further details — not scored
Size10 MB38 MB
Age rating4+17+
DeveloperBinariver LTDMedianet Limited

In-app purchases

2 purchases

Decision tree

One-time2
  • Decision tree PRO$19.99
  • Optimal Strategy$19.99
None

Trialist

No in-app purchases

Questions

Is Decision tree free?
Decision tree is free to download, with in-app purchases available.
Is Trialist free?
Trialist is free to download, with no in-app purchases.
Which has better reviews, Decision tree or Trialist?
Decision tree and Trialist are both rated 1.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do Decision tree or Trialist have ads?
Neither Decision tree nor Trialist shows ads.

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