Comparison

First Due vs Casi

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

Head to head
About

First Due

Features
Read full description

First Due: Connect, Learn, and Grow with Your Community First Due is the exclusive app designed to connect First Due Media clients with a vibrant community of like-minded individuals. More than just a networking tool, First Due is where learning and collaboration converge, providing a comprehensive platform to enhance your skills and broaden your horizons. Unlock Exclusive Content and Resources Expand your knowledge: Dive into a curated library of resources, including articles, videos, and interactive tools tailored to your specific needs and interests as a First Due Media client. Stay ahead of the curve: Access exclusive content and insights from industry experts, keeping you informed on the latest trends and best practices. Enhance your skills: Develop valuable skills through interactive workshops, webinars, and online courses designed to boost your personal and professional growth. Connect and Collaborate with Your Peers Join a thriving community: Connect with fellow First Due Media clients, sharing experiences, insights, and best practices. Engage in dynamic discussions: Participate in focused conversations, ask questions, and contribute your expertise within dedicated groups and forums. Build valuable relationships: Foster meaningful connections with peers who share your passion for learning and growth. Maximize Your First Due Media Experience Personalized recommendations: Discover new resources and content tailored to your individual interests and goals. Seamless communication: Stay connected with direct messaging and group chat features, facilitating collaboration and knowledge sharing. Exclusive events and opportunities: Gain access to exclusive events, workshops, and networking opportunities designed specifically for First Due Media clients. First Due: Your Gateway to a World of Learning and Connection First Due is more than just an app; it's your key to unlocking the full potential of your First Due Media experience. Download First Due today and embark on a journey of continuous learning, collaboration, and growth alongside a thriving community of peers.

About

Casi

Build confidence speaking Spanish with real-time, natural feedback. Get instant corrections that show you the most authentic way natives would say it. This distraction-free app focuses solely on Spanish for learners of all levels.

Highlights
  • Real-time natural feedback
  • Instant authentic corrections
  • Distraction-free design
  • Practice for all levels
  • Focus on sounding natural
Features
Read full description

Build Spanish confidence with real-time, natural feedback. Casi is your personal guide to speaking Spanish naturally and confidently, no matter where you're learning from. Get instant corrections that go beyond "right or wrong," showing you the most authentic way natives would say it. No streaks, no notifications, just focused practice that fits your life. Built by an indie developer traveling through South America who was frustrated with generic apps and unnatural translations. Casi focuses solely on Spanish to help you sound like a local. How Casi Works • Think it: Type what you want to say in English. • Try it: Write your Spanish version. • Fix it: Receive a score, natural alternative, and clear explanations. Practice that feels real • Sound natural, not robotic • Helpful feedback with explanations • Simple, distraction-free design • Ideal for all levels: Beginners building habits, intermediates breaking the "understand but can't speak" plateau, travelers going beyond basics Download Casi and start speaking Spanish with confidence today.

Screenshots

First Due4 screens
Casi4 screens

Verdict

The call

The clearest difference is in-app purchases: First Due at none against Casi's 3. First Due also leads on iOS requirement (15.0 vs 18.6). Casi's advantage is update cadence (fortnightly vs every 9 months). On price, ads 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. Casi sells 3 in-app purchases, starting at $1.99 per 7 days. First Due asks for nothing beyond the download.

UpkeepUpdate frequency

First Due ships an update every 9 months, Casi fortnightly. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

Scorecard3 real differences · 7 level
First Due versus Casi: the parameters behind the verdict, then further details
ParameterFirst DueCasi
PriceFreeFree
Rating—5.0 (4 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—4 — better
Update frequencyEvery 9 monthsFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better18.6
Further details — not scored
Size127 MB10 MB
Age rating4+4+
DeveloperFirst Due MediaBetter Things Better

In-app purchases

None

First Due

No in-app purchases

3 purchases

Casi

Subscriptions3
  • Casi – Weekly$1.997 Days
  • Casi – Monthly$4.991 Month
  • Casi – Yearly$49.991 Year

Questions

Is First Due free?
First Due is free to download, with no in-app purchases.
Is Casi free?
Casi is free to download, with in-app purchases available.
Do First Due or Casi have ads?
Neither First Due nor Casi shows ads.
Which is updated more often, First Due or Casi?
First Due ships an update every 9 months, and Casi fortnightly. Most recently, First Due was updated on October 25, 2026 and Casi on October 24, 2026.

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