# x2VOL_ vs Linus

The clearest difference is review sentiment: Linus at 68% against x2VOL_'s 15%. Linus also leads on rating (4.8 vs 4.2) and update cadence (every 11 days vs every 3 months). x2VOL_'s advantage is in-app purchases (none vs 10) and ads (none vs shown). On price, ratings volume and device support there is nothing between them.

Both are free to download. Linus sells 10 in-app purchases, starting at $24.99 per 3 months. x2VOL_ asks for nothing beyond the download.

Linus holds the better App Store score, 4.8 against 4.2. Both are backed by a comparable volume of ratings — 1.4K and 798 respectively. Written reviews point the same way: 15% of x2VOL_'s written reviews are positive against 68% of Linus's.

x2VOL_ ships an update every 3 months, Linus every 11 days. The most recent releases landed on November 11, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | x2VOL_ | Linus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (1.4K ratings)](https://appshunter.io/ios/app/x2vol/id897794733/reviews) | **[4.8 (798 ratings)](https://appshunter.io/ios/app/linus-digital-sat-prep/id6740494483/reviews)** |
| Number of ratings | **1.4K** | 798 |
| Positive reviews | 15.1% of reviews | **68.4% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 11 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 21 MB | 93 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [IntelliVOL](https://appshunter.io/developer/511523598) | [Linus Labs, Inc.](https://appshunter.io/developer/1790246412) |

## What reviewers say

### x2VOL_

[App page](https://appshunter.io/ios/app/x2vol/id897794733)

This app streamlines service hour tracking for K-12 students, allowing customization of goals and centralization of hours. It connects students with nonprofits, verifies service records, and generates official transcripts for college and scholarship applications.

**Highlights:** Customize service goals, Centralize service hours, Provide diverse service opportunities, Track and report service hours, Engage with nonprofits, Generate Official Service Transcript™

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 💯 Easiest way to track service hours
- 🚀 Great app, makes it much easier and more convenient to request verification for service hours

**What reviewers complain about**

- 🐛 Terrible user interface, app is broken and doesn't work on iPad
- 🐛 Completely broken, unable to log in
- 🐛 Slow, not synced to website, needs an update but no updates available
- 🐛 Trouble logging in, can't submit hours, keeps kicking user out of the app
- 🐛 Doesn't work, can't submit hours, forces user to use the website instead

**Reported bugs**

- Login issues, unable to log in even with correct credentials
- App says it needs an update but no updates are available
- Hours submitted disappear or don't sync properly
- App forces user to go to website instead of working in the app

**Requested features**

- Add drafts to save hours before submitting
- Allow users to change information about the company they did service with
- Increase the number of hours that can be submitted at once


### 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 (10)**

| 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 Yearly | $499.00 | per year |
| Turbo Yearly | $600.00 | per year |

**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


## Frequently asked questions

### Is x2VOL_ free?

x2VOL_ is free to download, with no in-app purchases.

### Is Linus free?

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

### Which has better reviews, x2VOL_ or Linus?

Linus is rated higher. x2VOL_ averages 4.2 out of 5 from 1.4K ratings, while Linus averages 4.8 from 798 ratings.

### Do x2VOL_ or Linus have ads?

Linus shows ads; x2VOL_ does not.

### Which is updated more often, x2VOL_ or Linus?

x2VOL_ ships an update every 3 months, and Linus every 11 days. Most recently, x2VOL_ was updated on November 11, 2026 and Linus on November 8, 2026.

---

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