Comparison

Interflexion vs Project Fluency™

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

Head to head
About

Interflexion

Develop leadership and interpersonal skills through interactive role-playing scenarios. Receive personalized feedback to improve professional interactions with colleagues. Requires registration with the service.

Highlights
  • Guided practice in role-playing scenarios
  • Personalized feedback on interactions
  • Develop leadership skills
  • Enhance interpersonal communication
  • Interactive learning experience
Read full description

Interflexion is an intelligent, interactive app that helps aspiring professionals develop leadership and interpersonal skills through guided practice and personalized feedback. Interflexion engages you in memorable role-playing scenarios where you learn to interact more effectively with your colleagues. Note: To use the Interflexion app, you must be a registered user of Interflexion.

About

Project Fluency™

Practice real-world conversations with AI characters that remember your mistakes and adapt to your learning style. Improve fluency in five languages with native accents and cultural context.

Highlights
  • AI characters with memory
  • Real-time grammar correction
  • Adaptive practice modes
  • Voice-first learning
  • Regional accents and slang
  • Progress analysis
Features
Read full description

People learn a language by living in it. Project Fluency lets you live in one from home. Every language comes with its own city: Spanish in Mexico City, French in Paris, Italian in Rome, Portuguese in Rio, English in Chicago. You talk out loud, at your level, with the people who live there: AI characters with jobs, accents and opinions, who remember you from one conversation to the next. You work shifts in their town, read the news, listen to songs. And after every conversation, you see exactly what to fix. THE PEOPLE IN TOWN A market seller in Mexico City who will teach you to haggle. A barber in Rome with a story for every haircut. A bartender in Paris who will happily argue philosophy. A cook in Buenos Aires who runs her kitchen like a general. Every language has its own characters in its own city, each with a job, an accent and opinions of their own. Learning English? Rehearse a visa interview, a job interview, or a meeting with your team. ASK FOR WHAT YOU NEED In the middle of a conversation, just say it: slower, please. Say that again. What does that word mean? Correct me more. Can we practice for my interview? Between conversations, send them a message. They remember you. SEE WHAT TO FIX - After each conversation, the character leaves you a short note with one thing to work on. - Hear your own mistake in your own voice, then hear it said right. - What you struggled with comes back on its own: in your next conversation, a short lesson, a story or a game. No lists to keep. PRACTICE BETWEEN CONVERSATIONS Short lessons built from your own mistakes, each with a quick quiz. Audio stories, the day's news rewritten at your level, original songs and city guides. Movies in some languages. And games set in the city: run a hotel front desk, serve at a café or play bingo night, using what you've been practicing. LIVE CLASSES WITH REAL TEACHERS Book a one-to-one video class. Your teacher reads a summary of your conversations first, so class starts where you get stuck. Live classes are in Spanish for now. KNOW YOUR LEVEL Take a spoken level check with an AI examiner whenever you're ready, from beginner to upper-intermediate. Pass, and your new level is recorded with the date. NO STREAKS, NO PRESSURE Your progress is the time you actually spent speaking. Miss a day or a month and nothing is lost. FULL IMMERSION One switch moves everything into the language you're learning: your conversations, your notes, your questions. Like waking up abroad. EVERY LANGUAGE IN EVERY PLAN Spanish, French, Italian, Portuguese and English are all included, whichever plan you choose. The app itself works in any of them too. HONEST ABOUT AI The characters are AI, with generated voices. Before your first conversation, the app explains what happens to your voice and your words, and asks for your agreement. The live teachers are real people. PLANS Project Fluency is free to start. Tourist and Local are monthly subscriptions that give you more time to talk and message, and more replays of your mistakes. Payment is charged to your Apple ID when you confirm. A subscription renews each month unless you turn it off at least 24 hours before the period ends. Manage or cancel it in your App Store account settings. Terms of Use and Privacy Policy: https://projectfluency.com/legal

Screenshots

Interflexion2 screens
Project Fluency™4 screens

Verdict

The call

The clearest difference is rating: Project Fluency™ at 5.0 against Interflexion's 3.9. Interflexion's advantage is in-app purchases (none vs 2) and ads (none vs shown). On price, ratings volume 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. Project Fluency™ sells 2 in-app purchases, starting at $17.99 per month. Interflexion asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Project Fluency™ holds the better App Store score, 5.0 against 3.9. Both are backed by a comparable volume of ratings — 8 and 5 respectively.

UpkeepUpdate frequency

Interflexion ships an update fortnightly, Project Fluency™ every 3 months. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

Scorecard6 real differences · 4 level
Interflexion versus Project Fluency™: the parameters behind the verdict, then further details
ParameterInterflexionProject Fluency™
PriceFreeFree
Rating3.9 (8 ratings)5.0 (5 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings8 — better5
Update frequencyFortnightly — betterEvery 3 months
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPod
Requires iOS12.0 — better15.1
Further details — not scored
Size54 MB77 MB
Age rating4+12+
DeveloperInterflexion Inc.Project Fluency, Inc.

Customer experience

Interflexion

All ratings8 ratings
Positive62.5%
Neutral25.0%
Negative12.5%

Project Fluency™

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Interflexion

No in-app purchases

2 purchases

Project Fluency™

Subscriptions2
  • Tourist$17.991 Month
  • Local$34.991 Month

Questions

Is Interflexion free?
Interflexion is free to download, with no in-app purchases.
Is Project Fluency™ free?
Project Fluency™ is free to download, with in-app purchases available.
Which has better reviews, Interflexion or Project Fluency™?
Project Fluency™ is rated higher. Interflexion averages 3.9 out of 5 from 8 ratings, while Project Fluency™ averages 5.0 from 5 ratings.
Do Interflexion or Project Fluency™ have ads?
Project Fluency™ shows ads; Interflexion does not.
Which is updated more often, Interflexion or Project Fluency™?
Interflexion ships an update fortnightly, and Project Fluency™ every 3 months. Most recently, Interflexion was updated on November 3, 2026 and Project Fluency™ on November 5, 2026.

Other comparisons