# Linus vs Radiant

The clearest difference is monetization model: Linus at free with in-app purchases against Radiant's subscription. Linus also leads on review sentiment (68% vs 37%). Radiant's advantage is ads (none vs shown). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Linus sells 14 in-app purchases, starting at $24.99 per 3 months and Radiant sells 14 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.8 for Linus against 4.8 for Radiant. Both are backed by a comparable volume of ratings — 797 and 974 respectively. Written reviews are what separate them: 68% of Linus's written reviews are positive against 37% of Radiant's.

Linus ships an update every 11 days, Radiant every 10 days. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Linus | Radiant |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (797 ratings)](https://appshunter.io/ios/app/linus-digital-sat-prep/id6740494483/reviews) | **[4.8 (974 ratings)](https://appshunter.io/ios/app/radiant-speaking-challenges/id6751936053/reviews)** |
| Number of ratings | 797 | **974** |
| Positive reviews | **68.4% of reviews** | 36.8% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 11 days | **Every 10 days** |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 93 MB | 123 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Linus Labs, Inc.](https://appshunter.io/developer/1790246412) | [Loshi Technologies, LLC](https://appshunter.io/developer/1786701886) |

## What reviewers say

### Linus

[App page](https://appshunter.io/ios/app/linus-digital-sat-prep/id6740494483)

This app offers a gamified approach to preparing for the new Digital SAT. It provides targeted practice for Math, Vocabulary, and Reading sections, with features like daily quests and progress tracking to make studying engaging and effective.

**Highlights:** Gamified learning with quests and streaks, Simulates Bluebook testing experience, Targeted Math, Vocabulary, and Reading practice, Smart study planner for bite-sized lessons, Instant feedback on answers, Progress tracking

**Features:** macOS Compatibility

**In-app purchases (14)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Quarterly | $24.99 | per 3 months |
| Turbo | $24.99 | per month |
| Turbo | $24.99 | per month |
| Premium Yearly | $49.99 | per year |
| Turbo Monthly | $99.00 | per month |
| Turbo Monthly | $100.00 | per month |
| Turbo | $149.99 | per year |
| Turbo | $149.99 | per year |
| Turbo | $150.00 | per month |
| Linus Premium | $249.00 | per 3 months |
| Turbo Yearly | $499.00 | per year |
| Turbo | $500.00 | per year |
| Turbo Yearly | $600.00 | per year |
| SAT Test Date Access | $79.00 | one-time |

**What reviewers like**

- 💪 Perfect app
- 👍 Nice game
- 👍 Enjoyable!
- 👍 Best SAT app
- 👍 Easily the BEST FREE SAT Resource out there!

**Requested features**

- Personalized practice
- Practice tests


### Radiant

[App page](https://appshunter.io/ios/app/radiant-speaking-challenges/id6751936053)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (14)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Radiant Gold Weekly | $1.99 | per 7 days |
| Radiant Gold Weekly | $2.99 | per 7 days |
| Radiant Gold Weekly | $3.99 | per 7 days |
| Radiant Gold Weekly | $6.99 | per 7 days |
| Radiant Gold Annual | $9.99 | per year |
| Radiant Gold Weekly | $9.99 | per 7 days |
| Radiant Gold Annual | $19.99 | per year |
| Radiant Gold Annual | $29.99 | per year |
| Radiant Gold Annual | $39.99 | per year |
| Radiant Gold Annual | $49.99 | per year |
| Radiant Gold Annual | $59.99 | per year |
| Radiant Gold Annual | $79.99 | per year |
| Radiant Gold Annual | $109.99 | per year |
| Radiant Gold Annual | $119.99 | per year |


## Frequently asked questions

### Is Linus free?

Linus 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, Linus or Radiant?

Radiant is rated higher. Linus averages 4.8 out of 5 from 797 ratings, while Radiant averages 4.8 from 974 ratings.

### Do Linus or Radiant have ads?

Linus shows ads; Radiant does not.

### Which is updated more often, Linus or Radiant?

Linus ships an update every 11 days, and Radiant every 10 days. Most recently, Linus was updated on October 24, 2026 and Radiant on October 28, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*