# Flexi vs PairLingo

The clearest difference is in-app purchases: PairLingo at none against Flexi's 4. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Flexi sells 4 in-app purchases, starting at $5.99 per month. PairLingo asks for nothing beyond the download.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on November 4, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Flexi | PairLingo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (138 ratings)](https://appshunter.io/ios/app/flexi-vocabulary-flashcards/id6499282610/reviews)** | — |
| Number of ratings | **138** | — |
| Positive reviews | 76.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | Weekly |
| Monetization | Freemium | — |
| Size | 82 MB | 7 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Tomer Beilinson](https://appshunter.io/developer/1743082463) | [BALINT ALASZTICS](https://appshunter.io/developer/6796365639) |

## What reviewers say

### 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 |


### PairLingo

[App page](https://appshunter.io/ios/app/pairlingo-language-learning/id6796365637)

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

**In-app purchases:** none


## Frequently asked questions

### Is Flexi free?

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

### Is PairLingo free?

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

### Do Flexi or PairLingo have ads?

Neither Flexi nor PairLingo shows ads.

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

Flexi ships an update weekly, and PairLingo weekly. Most recently, Flexi was updated on November 4, 2026 and PairLingo on October 29, 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.*