Comparison

Investigation Declaration vs Flexi AI Tutor & Homework Help

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

Head to head
About

Investigation Declaration

Embark on a historical investigation to uncover how Enlightenment ideas influenced the Declaration of Independence. Travel across time and the Atlantic world, collecting evidence to restore corrupted files and understand the spread of concepts like natural rights and state sovereignty.

Highlights
  • Explore 10 Atlantic world locations
  • Track Natural Rights, State Sovereignty, or Social Contract
  • Mad-lib style evidence linking
  • Historical scenes with narrative
  • Spanish translation and English voiceover
  • Glossary and classroom resources
Features
Read full description

"An international crime of epic proportions has occurred. Members of a global crime ring, Baddies Against Rights & Freedom (B.A.R.F. for short), have hacked the most elite of institutions… the Bureau of Ideas! B.A.R.F. aims to destroy any and all files related to freedom, democracy, and rights. As Secret Agent 6, you will travel across time and the Atlantic world to investigate records that connect Enlightenment to the United States Declaration of Independence and beyond. Find how ideas have spread, track evidence of natural rights, state sovereignty, and the Social Contract, and restore the corrupted files. Game Features: - Multiple paths to completion: track Natural Rights, State Sovereignty, the Social Contract, or complete them all! - Explore 10 locations across the Atlantic world to collect evidence and connect. - Historical scenes enhanced by a narrative and rich material culture. - Mad-lib style activity links locations based on the evidence you collect along the way. For English Language Learners: This game offers a support tool, Spanish translation, English voiceover, and glossary. Teachers: Visit the iCivics """"teach"""" page to check out classroom resources for Investigation Declaration! Learning Objectives: - Track a set of Enlightenment ideas that inspired and followed the Declaration of Independence, particularly between 1750 and 1850. - Draw ideological cause-and-effect connections between historical events. - Identify and define the concepts of natural rights, the Social Contract, and state sovereignty. - Understand the roles of time and geography in the spread of ideas. - Describe methods by which ideas were transmitted during this time period: trade, written communications, migration, and print. - Become familiar with ideas, people, locations, and events that influenced declarations of rights and freedoms during this time period. Made in partnership with the Colonial Williamsburg Foundation "

About

Flexi AI Tutor & Homework Help

Get instant, free AI-powered tutoring for math, science, and chemistry. Snap a picture of your homework problems for step-by-step solutions and expert guidance anytime, anywhere. Improve your grades and master difficult concepts with this pocket-sized teacher.

Highlights
  • AI-powered tutoring
  • Snap and solve math problems
  • Instant step-by-step solutions
  • Personalized expert guidance
  • Homework and test prep support
  • 24/7 availability
Features
Read full description

Flexi – The Free AI Tutor for Math, Science & Homework Help Struggling with math, science, or chemistry? Need tutoring for homework help or test prep? Whether you're in school or just want to improve your learning, Flexi is your free AI tutor—available anytime, anywhere! With Flexi, you get instant tutoring for math, science, and chemistry to boost your grades and master concepts with ease. No more waiting for a teacher or struggling alone—Flexi provides step-by-step explanations for any question. Just snap a picture of your math problem, and Flexi will solve it instantly—for free. No ads, no in-app purchases. Why Choose Flexi for Free Tutoring & Homework Help? Snap and Solve: Take a picture of any math problem and get instant solutions. Instant Answers: Solve any math, science, or chemistry problem in seconds. Personalized Tutoring: Get expert guidance like a private teacher—for free. Homework Made Easy: Get step-by-step solutions for schoolwork and assignments. Science and Chemistry Help: Learn difficult concepts with clear explanations. Improve Your Grades: Get the learning support you need to succeed. How Flexi Helps You Learn for Free Math Tutoring – Get help with algebra, calculus, geometry, and more. Science Tutoring – Master physics, biology, and chemistry step by step. Snap a Math Problem – Take a picture and let Flexi solve it for you. Free AI Tutor for Homework – Solve tough assignments with expert guidance. Test Prep and School Support – Ace your quizzes and exams with in-depth explanations. 24/7 AI Tutoring – Your AI tutor never takes a break. Built for Every Student Whether you're in high school, middle school, or college, Flexi is designed for learning at any level. Need help from a tutor but don’t have access to one? Flexi works like a teacher in your pocket—and it’s completely free. 100% Free and Always Available No hidden fees—Flexi is completely free for all students. Available on any device—study at home, in class, or on the go. Trusted by millions—over 1.5 million students use Flexi every month. Download Flexi now and make schoolwork easier with the best free AI tutor!

Screenshots

Investigation Declaration4 screens
Flexi AI Tutor & Homework Help4 screens

Verdict

The call

The clearest difference is rating: Flexi AI Tutor & Homework Help at 4.3 against Investigation Declaration's 3.0. Flexi AI Tutor & Homework Help also leads on update cadence (monthly vs every 3 months) and ratings volume (14 vs 2). Investigation Declaration's advantage is iOS requirement (12.0 vs 15.1). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Flexi AI Tutor & Homework Help holds the better App Store score, 4.3 against 3.0. That said, the two scores are not equally well evidenced: Flexi AI Tutor & Homework Help has 14 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Investigation Declaration ships an update every 3 months, Flexi AI Tutor & Homework Help monthly. Both last shipped on October 28, 2026.

Scorecard4 real differences · 6 level
Investigation Declaration versus Flexi AI Tutor & Homework Help: the parameters behind the verdict, then further details
ParameterInvestigation DeclarationFlexi AI Tutor & Homework Help
PriceFreeFree
Rating3.0 (2 ratings)4.3 (14 ratings) — better
Positive reviews—57.1% of reviews
Number of ratings214 — better
Update frequencyEvery 3 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.1
Further details — not scored
Size351 MB19 MB
Age rating4+4+
DeveloperiCivics, Inc.CK-12 Foundation

In-app purchases

None

Investigation Declaration

No in-app purchases

None

Flexi AI Tutor & Homework Help

No in-app purchases

Questions

Is Investigation Declaration free?
Investigation Declaration is free to download, with no in-app purchases.
Is Flexi AI Tutor & Homework Help free?
Flexi AI Tutor & Homework Help is free to download, with no in-app purchases.
Which has better reviews, Investigation Declaration or Flexi AI Tutor & Homework Help?
Flexi AI Tutor & Homework Help is rated higher. Investigation Declaration averages 3.0 out of 5 from 2 ratings, while Flexi AI Tutor & Homework Help averages 4.3 from 14 ratings.
Do Investigation Declaration or Flexi AI Tutor & Homework Help have ads?
Neither Investigation Declaration nor Flexi AI Tutor & Homework Help shows ads.
Which is updated more often, Investigation Declaration or Flexi AI Tutor & Homework Help?
Investigation Declaration ships an update every 3 months, and Flexi AI Tutor & Homework Help monthly. Most recently, Investigation Declaration was updated on October 28, 2026 and Flexi AI Tutor & Homework Help on October 28, 2026.

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