# Linus vs BirdsEyes

The clearest difference is review sentiment: Linus at 68% against BirdsEyes's 0%. Linus also leads on rating (4.8 vs 4.0) and ratings volume (797 vs 3). BirdsEyes's advantage is ads (none vs shown). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. Linus sells 14 in-app purchases, starting at $24.99 per 3 months and BirdsEyes sells 2 in-app purchases, starting at $19.99 per month. Whichever you choose, the download price is not the number that matters.

Linus holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: Linus has 797 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 68% of Linus's written reviews are positive against 0% of BirdsEyes's.

Linus ships an update every 11 days, BirdsEyes every 2 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | Linus | BirdsEyes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (797 ratings)](https://appshunter.io/ios/app/linus-digital-sat-prep/id6740494483/reviews)** | [4.0 (3 ratings)](https://appshunter.io/ios/app/birdseyes/id6778977682/reviews) |
| Number of ratings | **797** | 3 |
| Positive reviews | **68.4% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 11 days** | Every 2 weeks |
| Monetization | Free with in-app purchases | Freemium |
| Size | 93 MB | 98 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Linus Labs, Inc.](https://appshunter.io/developer/1790246412) | [CHRISTIAN JOSIAH KIRK COLLINS](https://appshunter.io/developer/6778977684) |

## 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


### BirdsEyes

[App page](https://appshunter.io/ios/app/birdseyes/id6778977682)

Visualize your interests and learning journey on a dynamic map. Explore topics, follow questions with layered explanations and exercises, and retain knowledge through notes and spaced review. Designed for focused learning without endless scrolling.

**Highlights:** Map interests and connections, Layered explanations for questions, Spaced review for retention, Note-taking and journaling, AI-powered learning guide, Ad-free learning experience

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $19.99 | per month |
| Premium Annual | $149.99 | per year |


## Frequently asked questions

### Is Linus free?

Linus is free to download, with in-app purchases available.

### Is BirdsEyes free?

BirdsEyes is free to download, with in-app purchases available.

### Which has better reviews, Linus or BirdsEyes?

Linus is rated higher. Linus averages 4.8 out of 5 from 797 ratings, while BirdsEyes averages 4.0 from 3 ratings.

### Do Linus or BirdsEyes have ads?

Linus shows ads; BirdsEyes does not.

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

Linus ships an update every 11 days, and BirdsEyes every 2 weeks. Most recently, Linus was updated on October 24, 2026 and BirdsEyes on October 24, 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.*