# Knowt vs Study Surfers

The clearest difference is ratings volume: Knowt at 11K against Study Surfers's 7. Knowt also leads on review sentiment (63% vs 50%) and chart position (#91 vs unranked). Study Surfers's advantage is rating (5.0 vs 4.7) and update cadence (every 3 days vs weekly). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Knowt sells 28 in-app purchases, starting at $5.99 per month and Study Surfers sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Study Surfers holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Knowt has 11K ratings behind it against 7, so its average is the more settled of the two. Written reviews complicate that: 63% of Knowt's written reviews are positive against 50% of Study Surfers's, so the app with the better star average is not the one people write more warmly about.

Knowt ships an update weekly, Study Surfers every 3 days. The most recent releases landed on September 24, 2026 and August 23, 2026 respectively.

## The numbers

| Metric | Knowt | Study Surfers |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (11K ratings)](https://appshunter.io/ios/app/knowt-ai-flashcards-and-notes/id6463744184/reviews) | **[5.0 (7 ratings)](https://appshunter.io/ios/app/study-surfers/id6752008601/reviews)** |
| Number of ratings | **11K** | 7 |
| Positive reviews | **62.5% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Weekly | **Every 3 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#91** | — |
| Size | 142 MB | 241 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Knowt Inc.](https://appshunter.io/developer/1462368056) | [Henry Hinman Whittle](https://appshunter.io/developer/1837850814) |

## What reviewers say

### Knowt

[App page](https://appshunter.io/ios/app/knowt-ai-flashcards-and-notes/id6463744184)

**Currently charting:** #91 Top Grossing · Education, #123 Top Free · Education (US App Store)

This study app uses AI to transform notes and lecture videos into flashcards and practice tests. It offers various study modes, including spaced repetition, and provides free AP exam study guides. Millions of student-created resources are available.

**Highlights:** AI flashcard maker, Summarize lecture videos, Create practice tests from notes/PDFs/videos, Free Learn Mode with multiple study modes, Spaced Repetition algorithm, Free AP Study Guides, Sync across mobile and web

**Features:** macOS Compatibility

**In-app purchases (28)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Student Plus Monthly | $5.99 | per month |
| Student Plus Monthly | $7.99 | per month |
| Teacher Plus Monthly | $7.99 | per month |
| Student Ultra Weekly | $9.99 | per 7 days |
| Student Ultra Monthly | $12.99 | per month |
| Teacher Ultra Monthly | $12.99 | per month |
| Student Ultra Monthly | $14.99 | per month |
| Teacher Ultra Monthly | $14.99 | per month |
| Student Ultra Monthly | $19.99 | per month |
| Student Ultra Monthly | $19.99 | per month |
| Student Ultra Monthly | $19.99 | per month |
| Teacher Ultra Monthly | $19.99 | per month |
| Student Plus Annual | $23.99 | per year |
| Student Ultra Monthly | $24.99 | per month |
| Teacher Plus Annual | $35.99 | per year |
| Teacher Ultra Annual | $47.99 | per year |
| Student Ultra Annual | $59.99 | per year |
| Student Ultra Annual | $59.99 | per year |
| Teacher Ultra Annual | $59.99 | per year |
| Student Ultra Annual | $95.99 | per year |
| Teacher Ultra Annual | $95.99 | per year |
| Student Ultra Annual | $119.99 | per year |
| Student Ultra Annual | $119.99 | per year |
| Student Ultra Annual | $119.99 | per year |
| Student Ultra Annual | $119.99 | per year |
| Teacher Ultra Annual | $119.99 | per year |
| Student Ultra Annual | $149.99 | per year |
| Student ultra annual | $149.99 | per year |

**What reviewers like**

- 🚀 Amazing app
- 🚀 Quizlet alternative
- 👍 Helpful for studying
- 👍 Easy to use
- 👍 Intuitive interface

**What reviewers complain about**

- 🐛 Frequent crashes
- 🐛 Glitchy app
- 🐛 Bugs with flashcard functionality
- 🐛 Inconsistent performance
- 🐛 Syncing issues between devices

**Reported bugs**

- Flashcards disappearing or duplicating
- Incorrect answers marked as correct
- Freezing on update screen
- Compatibility issues on certain devices

**Requested features**

- Split screen support for iPad
- Ability to manually sort flashcards
- More formatting options for flashcards
- Improved AI-generated notes
- Offline study mode


### Study Surfers

[App page](https://appshunter.io/ios/app/study-surfers/id6752008601)

This app transforms study notes into an engaging endless runner game. Use AI to generate custom quizzes from any topic, test your knowledge to increase speed, and compete for high scores. Customize your character with earned in-game currency.

**Highlights:** AI-generated custom quizzes, Endless runner gameplay, Speed increases with correct answers, Character customization, High score competition, Unlockable outfits and accessories

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $8.99 | one-time |


## Frequently asked questions

### Is Knowt free?

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

### Is Study Surfers free?

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

### Which has better reviews, Knowt or Study Surfers?

Study Surfers is rated higher. Knowt averages 4.7 out of 5 from 11K ratings, while Study Surfers averages 5.0 from 7 ratings.

### Do Knowt or Study Surfers have ads?

Both Knowt and Study Surfers show ads.

### Which is updated more often, Knowt or Study Surfers?

Knowt ships an update weekly, and Study Surfers every 3 days. Most recently, Knowt was updated on September 24, 2026 and Study Surfers on August 23, 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.*