Comparison

Decision Maker vs Cerne

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

Head to head
About

Decision Maker

This app provides a structured framework to organize thoughts, compare multiple options, and make more confident decisions. It allows users to add arguments for and against each choice, assign strength to them, and see which option is most favorable.

Highlights
  • Organize thoughts
  • Compare multiple options
  • Add arguments for and against
  • Assign strength to arguments
  • Random decision toss
  • Clear choice visualization
Read full description

Wise Choicer helps you turn overwhelming decisions into clear, confident choices. Compare two job offers, choose weekend plans, evaluate a new opportunity, or think through any decision that matters. Wise Choicer gives you a simple way to organize your thoughts, weigh each option, and understand why one choice may be better than another. Compare multiple options or evaluate a single idea Add reasons for and against each choice Rate the strength of every argument See which option comes out ahead and what influences the result Use a coin toss when you want a quick random decision Make decisions with less doubt and more clarity using Wise Choicer. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Cerne

Measure and understand your carbon footprint by identifying trees with augmented reality. Track your personal impact and contribute to a collaborative map of CO₂ capture, helping to support environmental research and reforestation.

Highlights
  • Augmented reality tree identification
  • Carbon sequestration calculation
  • Collaborative community mapping
  • Individual and collective impact tracking
  • Biodiversity and flora information
  • CO₂ neutralized and oxygen generated reports
Features
Read full description

Cerne is an app that connects technology and nature to help you measure, understand, and reduce your carbon footprint. With the power of iPhone augmented reality, you can identify tree species, measure trunk diameter and height, and discover how much CO₂ each tree can capture. Key Features • Carbon sequestration calculation: Use the camera to record trees and instantly see their potential for CO₂ capture. • Smart mapping: Every entry is saved on a large collaborative map that shows the real impact of each tree and the community. • Individual and collective data: Track your personal contribution and see the combined results of all users in real time. • Biodiversity revealed: Learn about the species present in your region and help expand knowledge about local flora. • Impact reports: Get clear statistics on CO₂ neutralized and estimated oxygen generated from the trees you register. How It Works 1. Capture and identify – Photograph the tree, identify its species, and record diameter and height using the camera and augmented reality. 2. Calculate and track – Cerne estimates carbon sequestration potential and oxygen release, creating a history of your positive impact. 3. Share and engage – Invite friends and watch the community’s strength grow, with data revealing the total carbon removed from the air. Why Use Cerne Every tree counts for the climate. By registering your discoveries, you contribute to a global database that supports environmental research, encourages reforestation actions, and promotes a more sustainable lifestyle. The app helps you visualize the real impact of small actions, turning every record into valuable information for the planet. Download Cerne and join a community that believes technology and nature can work together to reduce CO₂ and improve the air we breathe.

Screenshots

Decision Maker4 screens
Cerne4 screens

Verdict

The call

The clearest difference is in-app purchases: Cerne at none against Decision Maker's 2. Cerne also leads on ads (none vs shown) and update cadence (every 4 days vs every 5 months). Decision Maker's advantage is iOS requirement (18.6 vs 26.0). On price and device support 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 Maker sells 2 in-app purchases, starting at $0.99 per 7 days. Cerne asks for nothing beyond the download.

UpkeepUpdate frequency

Decision Maker ships an update every 5 months, Cerne every 4 days. The most recent releases landed on November 8, 2026 and October 30, 2026 respectively.

Scorecard5 real differences · 5 level
Decision Maker versus Cerne: the parameters behind the verdict, then further details
ParameterDecision MakerCerne
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings—1 — better
Update frequencyEvery 5 monthsEvery 4 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhoneiPhone
Requires iOS18.6 — better26.0
Further details — not scored
Size9 MB12 MB
Age rating4+4+
DeveloperDmitrii VlasovAndrei Rech

In-app purchases

2 purchases

Decision Maker

Subscriptions1
  • Weekly subscription$0.997 Days
One-time1
  • One-time purchase$5.99
None

Cerne

No in-app purchases

Questions

Is Decision Maker free?
Decision Maker is free to download, with in-app purchases available.
Is Cerne free?
Cerne is free to download, with no in-app purchases.
Do Decision Maker or Cerne have ads?
Decision Maker shows ads; Cerne does not.
Which is updated more often, Decision Maker or Cerne?
Decision Maker ships an update every 5 months, and Cerne every 4 days. Most recently, Decision Maker was updated on November 8, 2026 and Cerne on October 30, 2026.

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