# BrainDeck vs Flexi

BrainDeck and Flexi are too close to call on the numbers: across 10 compared parameters — price, rating, review sentiment and ratings volume among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. BrainDeck sells 6 in-app purchases, starting at $1.99 per 7 days and Flexi sells 4 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for BrainDeck against 4.8 for Flexi. Both are backed by a comparable volume of ratings — 246 and 138 respectively. Written reviews are what separate them: 70% of BrainDeck's written reviews are positive against 77% of Flexi's.

BrainDeck ships an update every 6 days, Flexi weekly. The most recent releases landed on November 4, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | BrainDeck | Flexi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (246 ratings)](https://appshunter.io/ios/app/braindeck-ai-flashcards/id6476791990/reviews) | **[4.8 (138 ratings)](https://appshunter.io/ios/app/flexi-vocabulary-flashcards/id6499282610/reviews)** |
| Number of ratings | **246** | 138 |
| Positive reviews | 70.0% of reviews | **76.6% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Weekly |
| Monetization | Free with in-app purchases | Freemium |
| Size | 60 MB | 82 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Home Cook Technologies Ltd](https://appshunter.io/developer/1717172351) | [Tomer Beilinson](https://appshunter.io/developer/1743082463) |

## What reviewers say

### BrainDeck

[App page](https://appshunter.io/ios/app/braindeck-ai-flashcards/id6476791990)

This AI-powered flashcard app helps students study smarter and remember longer. Create custom flashcards with AI tools, schedule study sessions, and track your progress. Personalize your decks with custom covers to make learning more enjoyable and effective.

**Highlights:** AI-powered flashcard creation, Customizable flashcard decks, Smart study session scheduling, Progress tracking and insights, Personalized deck covers, Study reminders

**Features:** Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BrainDeck Pro Weekly | $1.99 | per 7 days |
| BrainDeck Pro Monthly | $3.99 | per month |
| BrainDeck Pro Yearly | $19.99 | per year |
| BrainDeck Pro Yearly | $24.99 | per year |
| BrainDeck Pro Lifetime | $29.99 | one-time |
| BrainDeck Pro Lifetime | $49.99 | one-time |

**What reviewers like**

- 💡 AI-powered flashcard creation
- 👍 Excellent UI/UX
- 🚀 Efficient flashcard generation
- 👍 Easy to use
- 💡 Spaced repetition tool

**What reviewers complain about**

- 🐛 App flashes and closes
- 🐛 Image display too small
- 🐛 Limited image uploads (max 5)
- 🐛 Buggy and confusing
- 🐛 Functional flaw in file import

**Reported bugs**

- App flashes and closes unexpectedly
- Images and diagrams appear too small
- Cannot add more than 5 images at one time
- Security risk detected
- App lock issues

**Requested features**

- Allow iPad version on Mac
- Improve image/diagram size and visibility
- Add printing option for flashcards
- Reintroduce test-style practice exams
- Allow arrangement of cards during editing (up/down, back first)


### Flexi

[App page](https://appshunter.io/ios/app/flexi-vocabulary-flashcards/id6499282610)

Build your vocabulary and master new languages with an AI-powered flashcard system. Create personalized cards, get instant translations and definitions, and utilize spaced repetition for effective long-term memorization. Supports numerous languages and offers offline study options.

**Highlights:** Personalized flashcard creation, AI-powered translations and definitions, Spaced repetition system, Text-to-speech pronunciation, Offline study mode, Progress tracking, CSV import/export

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $5.99 | per month |
| Premium Monthly | $5.99 | per month |
| Premium Annual | $29.99 | per year |
| Premium Lifetime | $99.99 | one-time |


## Frequently asked questions

### Is BrainDeck free?

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

### Is Flexi free?

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

### Which has better reviews, BrainDeck or Flexi?

Flexi is rated higher. BrainDeck averages 4.7 out of 5 from 246 ratings, while Flexi averages 4.8 from 138 ratings.

### Do BrainDeck or Flexi have ads?

Neither BrainDeck nor Flexi shows ads.

### Which is updated more often, BrainDeck or Flexi?

BrainDeck ships an update every 6 days, and Flexi weekly. Most recently, BrainDeck was updated on November 4, 2026 and Flexi on November 8, 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.*