Comparison

Mimir vs Radiant

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

Head to head
About

Mimir

This app makes learning an adventure with an AI-powered tutor that adapts to your learning style. It uses vibrant visuals and interactive conversations to make complex topics engaging and easy to understand, covering a wide range of subjects.

Highlights
  • AI-powered adaptive tutor
  • Interactive visual learning
  • Engaging conversational learning
  • Wide range of topics
  • Personalized learning experience
Features
Read full description

Unlock your curiosity with Mimir, the revolutionary mobile app that transforms learning into an adventure! Safe, Smart, and Engaging Mimir isn't just another educational app – it's a virtual companion that sparks your imagination and fuels your thirst for knowledge. Our AI-powered tutor adapts to your unique learning style, ensuring a safe and personalized experience. Vibrant Visuals Bring Concepts to Life Watch your eyes light up as complex ideas burst into colorful, interactive visuals. From the depths of the ocean to the far reaches of space, Mimir makes every topic a visual feast. Interactive Learning, Not Passive Listening Say goodbye to dull lectures! Mimir engages you in a dynamic conversation, asking thought-provoking questions that encourage critical thinking and problem-solving. It's not just about absorbing information – it's about learning how to learn. Explore Endless Topics Whether you are curious about dinosaurs, dream of being an astronaut, or want to understand how rainbows form, Mimir has it covered. Our ever-expanding library of topics ensures there's always something new to discover. Ready to ignite your potential? Download Mimir today and watch as the world becomes their classroom! Terms of Use: https://www.askmimir.ai/terms

About

Radiant

This app offers guided speaking challenges to enhance articulation, speech clarity, and confidence. It focuses on natural improvements by helping users understand their speaking patterns and make them more effective in everyday conversations.

Highlights
  • Guided speaking challenges
  • Improve articulation
  • Enhance speech clarity
  • Boost speaking confidence
  • Track speaking patterns
  • Natural speech improvement
Features
Read full description

Radiant helps you improve articulation, speech clarity, and speaking confidence through short, guided speaking challenges. Practice speaking in a calm, supportive space designed to help you slow down, speak clearly, and feel more confident using your voice. Each challenge is simple, focused, and easy to fit into your day. Instead of trying to “fix” your voice, Radiant helps you understand how you speak and make natural improvements that add up over time. What Radiant helps you improve: - Everyday clarity: Practice speaking the way you actually talk—not scripted speeches. Learn how to express your thoughts more smoothly and clearly in real conversations. - Sound more thoughtful, effortlessly: See patterns in pacing, pauses, and common habits like overusing “like” or “um,” so your words land with more confidence and credibility. - Pause without awkwardness: Learn how to slow down and think mid-sentence without losing your place or sounding unsure. - Polished, not robotic: Radiant helps you sound put-together while still sounding like yourself. - Progress you can feel: Watch your everyday speaking become calmer, clearer, and more intentional—one session at a time. You already know what you want to say. Radiant helps you say it better. Beyond the first challenge, all other challenges will require the customer to utilize a free trial (expires within 3 days and transitions to a paid plan) or a paid plan (post-trial). This means to access any app features the user must purchase a weekly or annual subscription. The following do not require a purchase: Onboarding Flow The following do require a purchase: Speaking Challenges Reading Challenges Progress Tracking Terms of Use (EULA): https://radiant-app.vercel.app/terms-of-service Privacy Policy: https://radiant-app.vercel.app/privacy-policy

Screenshots

Mimir4 screens
Radiant4 screens

Verdict

The call

The clearest difference is monetization model: Mimir at free with in-app purchases against Radiant's subscription. Mimir also leads on review sentiment (56% vs 37%). Radiant's advantage is ratings volume (975 vs 149) and iOS requirement (15.1 vs 26.1). On price, rating, update cadence and ads 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. Mimir sells 2 in-app purchases, starting at $12.99 per month and Radiant sells 8 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Radiant holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Radiant has 975 ratings behind it against 149, so its average is the more settled of the two. Written reviews complicate that: 56% of Mimir's written reviews are positive against 37% of Radiant's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 10 days. Both last shipped on November 5, 2026.

Scorecard4 real differences · 6 level
Mimir versus Radiant: the parameters behind the verdict, then further details
ParameterMimirRadiant
PriceFreeFree
Rating4.6 (149 ratings)4.8 (975 ratings) — better
Positive reviews55.6% of reviews — better36.8% of reviews
Number of ratings149975 — better
Update frequencyEvery 10 daysEvery 10 days
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterSubscription
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS26.115.1 — better
Further details — not scored
Size69 MB123 MB
Age rating4+4+
DeveloperRandomWalkLoshi Technologies, LLC

Customer experience

Mimir

All ratings149 ratings
Positive89.3%
Neutral4.7%
Negative6.0%
Written reviews27 reviews
Positive55.6%
Neutral11.1%
Negative33.3%

Radiant

All ratings956 ratings
Positive95.1%
Neutral1.5%
Negative3.5%
Written reviews57 reviews
Positive36.8%
Neutral3.5%
Negative59.6%

In-app purchases

2 purchases

Mimir

Subscriptions2
  • Mimir Pro - Monthly7 Days trial$12.991 Month
  • Mimir Pro - Yearly7 Days trial$89.991 Year
8 purchases

Radiant

Subscriptions8
  • Radiant Gold Weekly$1.997 Days
  • Radiant Gold Weekly$2.997 Days
  • Radiant Gold Weekly$6.997 Days
Show 5 more
  • Radiant Gold Annual7 Days trial$9.991 Year
  • Radiant Gold Weekly$9.997 Days
  • Radiant Gold Annual7 Days trial$19.991 Year
  • Radiant Gold Annual7 Days trial$39.991 Year
  • Radiant Gold Annual3 Days trial$79.991 Year

Questions

Is Mimir free?
Mimir is free to download, with in-app purchases available.
Is Radiant free?
Radiant is free to download, with in-app purchases available.
Which has better reviews, Mimir or Radiant?
Radiant is rated higher. Mimir averages 4.6 out of 5 from 149 ratings, while Radiant averages 4.8 from 975 ratings.
Do Mimir or Radiant have ads?
Neither Mimir nor Radiant shows ads.
Which is updated more often, Mimir or Radiant?
Mimir ships an update every 10 days, and Radiant every 10 days. Most recently, Mimir was updated on November 5, 2026 and Radiant on November 5, 2026.

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