# Federgraph vs Lingo Books

The clearest difference is in-app purchases: Federgraph at none against Lingo Books's 4. Lingo Books's advantage is update cadence (every 5 weeks vs every 15 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Lingo Books sells 4 in-app purchases, starting at $4.99 per month. Federgraph asks for nothing beyond the download.

Federgraph ships an update every 15 months, Lingo Books every 5 weeks. The most recent releases landed on September 9, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Federgraph | Lingo Books |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (101 ratings)](https://appshunter.io/ios/app/lingo-books-read-and-learn/id1671191637/reviews)** |
| Number of ratings | — | **101** |
| Positive reviews | — | 77.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 5 weeks** |
| Monetization | — | Freemium |
| Size | 29 MB | 158 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Gustav Schubert](https://appshunter.io/developer/670940970) | [Mykola Mylashko](https://appshunter.io/developer/1073344258) |

## What reviewers say

### Federgraph

[App page](https://appshunter.io/ios/app/federgraph/id670940947)

**In-app purchases:** none


### Lingo Books

[App page](https://appshunter.io/ios/app/lingo-books-read-and-learn/id1671191637)

Learn languages through engaging bilingual stories, lessons, and games. Offers side-by-side translations, native speaker narration, and progress tracking. Supports 7 popular languages for learners of all levels.

**Highlights:** Bilingual books with side-by-side translations, Native speaker narration, Interactive lessons, Vocabulary games and exercises, Offline reading and listening, Progress tracking and achievements

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (1 Month) | $4.99 | per month |
| Premium (1 Year) | $19.99 | per year |
| Premium Annually | $19.99 | per year |
| Lifetime Premium | $29.99 | one-time |


## Frequently asked questions

### Is Federgraph free?

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

### Is Lingo Books free?

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

### Do Federgraph or Lingo Books have ads?

Neither Federgraph nor Lingo Books shows ads.

### Which is updated more often, Federgraph or Lingo Books?

Federgraph ships an update every 15 months, and Lingo Books every 5 weeks. Most recently, Federgraph was updated on September 9, 2026 and Lingo Books on September 22, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*