# CPC Theory vs Fastlingo

The clearest difference is price: Fastlingo at Free against CPC Theory's $3.99. CPC Theory's advantage is in-app purchases (none vs 1) and ads (none vs shown). On update cadence and device support there is nothing between them.

Fastlingo is free to download; CPC Theory costs $3.99 up front. Fastlingo sells 1 in-app purchase, starting at $3.99 per month. CPC Theory asks for nothing beyond the download.

CPC Theory ships an update monthly, Fastlingo every 3 weeks. The most recent releases landed on September 15, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | CPC Theory | Fastlingo |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/fastlingo/id6743956936/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 16.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 4 MB | 37 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [James Kelly](https://appshunter.io/developer/825582894) | [Mihai Ionescu](https://appshunter.io/developer/1805327977) |

## What reviewers say

### CPC Theory

[App page](https://appshunter.io/ios/app/cpc-theory/id960072930)

Prepare for your CPC Theory exam with up-to-date multiple-choice questions. Configure test settings, review incorrect answers, and track your progress to improve your score. This app focuses on the 100-question multiple-choice section.

**Highlights:** Up-to-date questions, Configurable test settings, Review wrong answers, Track quiz scores, Revision mode

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

**In-app purchases:** none


### Fastlingo

[App page](https://appshunter.io/ios/app/fastlingo/id6743956936)

Learn languages through a structured progression of 10,000 carefully-graded sentences, each with concise grammar notes. This app offers a calm, consistent learning experience designed to prevent burnout and build confidence from beginner to intermediate levels.

**Highlights:** 10,000 graded sentences, Concise grammar notes, Continuous progression, Micro-learning design, Four languages available, Pronunciation practice, Voice recording and recognition

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Renewable monthly subscription | $3.99 | per month |


## Frequently asked questions

### Is CPC Theory free?

CPC Theory costs $3.99, with no in-app purchases.

### Is Fastlingo free?

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

### Do CPC Theory or Fastlingo have ads?

Fastlingo shows ads; CPC Theory does not.

### Which is updated more often, CPC Theory or Fastlingo?

CPC Theory ships an update monthly, and Fastlingo every 3 weeks. Most recently, CPC Theory was updated on September 15, 2026 and Fastlingo on September 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.*