# Knowt vs Periodic Table Memorization

The clearest difference is rating: Knowt at 4.7 against Periodic Table Memorization's 4.0. Knowt also leads on ads (none vs shown) and ratings volume (11K vs 3). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Knowt sells 27 in-app purchases, starting at $5.99 per month and Periodic Table Memorization sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Knowt holds the better App Store score, 4.7 against 4.0. That said, the two scores are not equally well evidenced: Knowt has 11K ratings behind it against 3, so its average is the more settled of the two.

Knowt ships an update weekly, Periodic Table Memorization every 3 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | Knowt | Periodic Table Memorization |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (11K ratings)](https://appshunter.io/ios/app/knowt-ai-flashcards-and-notes/id6463744184/reviews)** | [4.0 (3 ratings)](https://appshunter.io/ios/app/periodic-table-memorization/id6776222961/reviews) |
| Number of ratings | **11K** | 3 |
| Positive reviews | 61.8% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#117** | — |
| Size | 150 MB | 18 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Knowt Inc.](https://appshunter.io/developer/1462368056) | [YU KORIKI](https://appshunter.io/developer/6776222963) |

## What reviewers say

### Knowt

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

**Currently charting:** #117 Top Grossing · Education, #122 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 (27)**

| 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 |
| 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


### Periodic Table Memorization

[App page](https://appshunter.io/ios/app/periodic-table-memorization/id6776222961)

Master element symbols and atomic numbers with interactive study modes. Build habits with daily streaks and reminders, track progress with charts, and prepare for chemistry exams. Works offline and offers a free trial.

**Highlights:** Four study modes: flashcards, quiz, fill-in-the-blank, puzzle, Daily streaks and reminders, Progress tracking charts, Offline functionality, Exam preparation for chemistry, Memorize element symbols and atomic numbers

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $1.99 | per month |
| Premium Yearly | $22.99 | per year |
| Premium lifetime | $1.99 | one-time |


## Frequently asked questions

### Is Knowt free?

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

### Is Periodic Table Memorization free?

Periodic Table Memorization is free to download, with in-app purchases available.

### Which has better reviews, Knowt or Periodic Table Memorization?

Knowt is rated higher. Knowt averages 4.7 out of 5 from 11K ratings, while Periodic Table Memorization averages 4.0 from 3 ratings.

### Do Knowt or Periodic Table Memorization have ads?

Periodic Table Memorization shows ads; Knowt does not.

### Which is updated more often, Knowt or Periodic Table Memorization?

Knowt ships an update weekly, and Periodic Table Memorization every 3 weeks. Most recently, Knowt was updated on October 24, 2026 and Periodic Table Memorization 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.*