Comparison

Decisio vs Tunda

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

Head to head
About

Decisio

Features
Read full description

Stop overthinking. Start deciding. Decisio uses AI and the Analytic Hierarchy Process (AHP) -- a decision science method trusted in boardrooms and universities worldwide -- to turn complex choices into clear, ranked results. In 10 minutes, you get a defensible answer backed by math, not a gut feeling. HOW IT WORKS Define your decision (or pick a template) Set your criteria and how much each matters Add your options Make pairwise comparisons -- "Is cost more important than speed?" Get a ranked result with confidence scores The AHP consistency check flags when your own judgments contradict each other. No other decision app does this. AI THAT RESPECTS YOUR PRIVACY AI features are part of Pro. On devices with Apple Intelligence they run entirely on your iPhone -- your decision details never leave your device. You can also connect your own OpenAI key instead. Either way, the structured analysis is the same. DEVIL'S ADVOCATE Before you commit, AI challenges your top choice. It surfaces blind spots specific to your criteria, options, and context -- not generic pushback. Available with Pro. YOUR DECISION PLAYBOOK Every decision teaches you something -- if you capture it. Part of Pro. Recipes: Save what worked so you can repeat your winning formulas Principles: Record hard-won lessons so you never make the same mistake twice Source links: Tap any Playbook entry to jump back to the original decision TRACK OUTCOMES, SHARPEN YOUR JUDGMENT Rate past decisions as right call, mixed, or wrong call After 5 rated decisions, see your personal Calibration Score Watch your decision-making accuracy improve over time 15+ READY-MADE TEMPLATES Career: Job offers, career change, relocation Purchases: Car, laptop, home Business: Vendor selection, hiring, build vs. buy Travel: Trip planning, destination comparison Life: Moving, relationships, major commitments PROFESSIONAL EXPORT Export any decision as a polished PDF, Excel spreadsheet, or Markdown document. Every number traces back to your inputs. Share your reasoning with a manager, partner, or team. SYNCED AND PRIVATE iCloud keeps your decisions available across iPhone and iPad. All data stays in your iCloud account. No third-party servers. No ads. No data selling. FREE TO START Your first three decisions are free -- the full AHP method, all templates, and ranked results. No account required. Pro adds unlimited decisions, AI analysis, Devil's Advocate, Decision Playbook, and PDF export, from $2.99/month or $19.99/year with a 7-day free trial on the annual plan.

About

Tunda

Read full description

Impulse shopping can drain your time and money. Tunda helps you take back control by pausing marketplace apps, encouraging reflection, and rewarding patience. Built with Apple’s Screen Time API, Tunda gives you the tools to delay gratification and build smarter spending habits. Key Features - App Blocking & Shielding Choose which shopping or marketplace apps to block so you can avoid impulsive browsing. - Break with Reflection If you want to unlock a blocked app, answer a reflection challenge to rethink your decision. - Day Streaks & Rewards Stay consistent with your pause habit and earn rewards as you hit milestones like 12, 24, or 30 days. - Mindful Notifications Gentle reminders help you stay focused and stop before you regret it. - Parental & Personal Controls Powered by Apple’s Family Controls, Device Activity, and Managed Settings frameworks to keep your experience safe and seamless. Because every pause adds up. By delaying impulse purchases today, you gain freedom, clarity, and healthier spending habits tomorrow. Beat the challenge, enjoy it later.

Screenshots

Decisio4 screens
Tunda4 screens

Verdict

The call

The clearest difference is in-app purchases: Tunda at none against Decisio's 6. Tunda also leads on update cadence (every 2 days vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Decisio sells 6 in-app purchases, starting at $2.99 per month. Tunda asks for nothing beyond the download.

UpkeepUpdate frequency

Decisio ships an update every 2 weeks, Tunda every 2 days. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

Scorecard2 real differences Β· 4 level
Decisio versus Tunda: the parameters behind the verdict, then further details
ParameterDecisioTunda
PriceFreeFree
Update frequencyEvery 2 weeksEvery 2 days β€” better
AdsNoNo
In-app purchasesYesNo β€” better
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 β€” better18.0
Further details β€” not scored
Size8 MB10 MB
Age rating4+4+
DeveloperDmitrii RaevRudi Juandi Butarbutar

In-app purchases

6 purchases

Decisio

Subscriptions2
  • Monthly Pro$2.991 Month
  • Decisio Premium7 Days trial$17.991 Year
One-time4
  • Buy Us a Coffee$1.99
  • Lunch for the Team$2.99
  • Dinner & Development$3.99
Show 1 more
  • Fuel Our Mission$12.99
None

Tunda

No in-app purchases

Questions

Is Decisio free?
Decisio is free to download, with in-app purchases available.
Is Tunda free?
Tunda is free to download, with no in-app purchases.
Do Decisio or Tunda have ads?
Neither Decisio nor Tunda shows ads.
Which is updated more often, Decisio or Tunda?
Decisio ships an update every 2 weeks, and Tunda every 2 days. Most recently, Decisio was updated on October 30, 2026 and Tunda on October 28, 2026.

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