# Bulb vs Memgrain

The clearest difference is update cadence: Memgrain at every 2 days against Bulb's every 5 days. Memgrain also leads on iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Bulb sells 3 in-app purchases, starting at $2.99 per 7 days and Memgrain sells 3 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Bulb ships an update every 5 days, Memgrain every 2 days. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Bulb | Memgrain |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/memgrain-ai-study-tools/id6769082210/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 2 days** |
| Monetization | — | Freemium |
| Size | 40 MB | 42 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 12+ |
| Developer | [Danis Gaiazov](https://appshunter.io/developer/1798511426) | [Steven Urry](https://appshunter.io/developer/1840513069) |

## What reviewers say

### Bulb

[App page](https://appshunter.io/ios/app/bulb-read-to-learn-languages/id6742458314)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $2.99 | per 7 days |
| Premium Monthly | $6.99 | per month |
| Premium Annual | $49.99 | per year |


### Memgrain

[App page](https://appshunter.io/ios/app/memgrain-ai-study-tools/id6769082210)

This app transforms your study materials into interactive flashcards and quizzes using AI. It also offers tools for verbatim memorization of texts like quotes and speeches, with progress tracking and customizable reminders.

**Highlights:** AI flashcard and quiz generation, Verbatim text memorization tools, Spaced repetition scheduling, Progress tracking dashboard, Customizable study reminders, Multiple input formats (PDF, DOCX, images, URLs)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $1.99 | per 7 days |
| Monthly | $3.99 | per month |
| Annual | $39.99 | per year |


## Frequently asked questions

### Is Bulb free?

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

### Is Memgrain free?

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

### Do Bulb or Memgrain have ads?

Neither Bulb nor Memgrain shows ads.

### Which is updated more often, Bulb or Memgrain?

Bulb ships an update every 5 days, and Memgrain every 2 days. Most recently, Bulb was updated on October 30, 2026 and Memgrain on November 5, 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.*