# Corvyn — Train reasoning, offline

> Train reasoning, offline (iPhone/iPad app by Zoltan Berki.)

- Source: https://appshunter.io/ios/app/corvyn/id6816500435 (this page in markdown: same URL + `.md`)
- Developer: [Zoltan Berki](https://appshunter.io/developer/6816500437)
- Category: Education, Games, Puzzle
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 15 MB
- Languages: American English
- Released: 2026-10-10
- Data updated: 2026-11-10

## What is Corvyn?

Corvyn is an offline trainer for abstract reasoning: the matrix puzzles built from progressions, rotations and logical rules.

It needs no account, shows no ads and collects no analytics. Practice works fully in airplane mode and your history stays on your device. Only two things ever leave it: a puzzle you flag as wrong (the puzzle and your answer, nothing about you), and with Gold, your synced history and leaderboard runs, kept under your subscription rather than your name.

FREE, FOREVER — NOT A TRIAL
• Practice at any difficulty you choose: easy, medium or hard, unlimited
• All six rule types and all six shape arrangements — the whole puzzle pool
• Every answer is corrected on the spot, with the name of the rule that produces it
• Unlimited timed Challenge runs, with a score and a full item-by-item review
• An ability rank from Novice to Elite, per-rule mastery, badges and a daily streak

BRONZE — ONE PAYMENT, YOURS PERMANENTLY
• Adaptive practice: instead of you picking a difficulty, Corvyn chooses each item to target your weakest rule

SILVER — SUBSCRIPTION
• Worked explanations: which features are held constant, and so why each wrong option is wrong
• Drill one rule type at a time
• Deeper analysis: trajectory, per-rule heatmap, calibration and retention
• Challenge band placement: where each run puts you on Corvyn's ability scale
• Run-over-run comparison: each Challenge run set against the one before, your recent average and your best

GOLD — SUBSCRIPTION
• Cloud sync: your history on every phone you use, and back with your purchase on a new one
• Weekly leaderboard: your best Challenge run of the week placed among every Gold player's, with your percentile and the points to the next bracket, if you choose to join

Prices are shown in the app, in your local currency, before you buy.

Corvyn is an independent practice tool. It is not an official intelligence test and does not give a clinical or certified score.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://corvyn.zoltanberki.com/privacy

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Gold | $4.99 | per month |
| Silver | $2.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Bronze | $4.99 | one-time |


## Is Corvyn safe?

Not enough ratings yet to assess Corvyn.

## Is Corvyn legit?

Corvyn has limited verification signals. The AppsHunter Legitimacy Score for Corvyn is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 5 releases)

### 1.1.9 — 2026-11-09

• Your best Challenge run now stays pinned at the top of Recent runs, however many runs you've played since.
• Share a new personal best as an image card in your tier's colours.
• A new launch screen.

### 1.1.8 — 2026-10-21

• Challenge runs now count toward your best combo at each level, including runs you've already played.
• Progress no longer replays your leaderboard animation each time you come back; it plays only when your place changes.
• Small wording fixes.

### 1.1.7 — 2026-10-19

Fairer hard puzzles, and more room on big screens.

• Hard puzzles no longer ask you to add or subtract shape sizes. Addition and subtraction stay with the number of shapes, which you can count.
• The Addition & subtraction skill on Progress now follows those count puzzles.
• The Demo tab is now called Rules.
• On an iPad or a large window, the six rule types sit three across.
• Recent Challenge runs stars only the run that set your best; a later run with the same score reads "ties best".

### 1.1.6 — 2026-10-18

Every right answer now counts towards something.

• The combo meter: a row of five pips fills with each right answer in Practice, and its colour warms as the combo grows.
• Beat your best combo and Corvyn marks the moment, once.
• Day streaks have milestones: the next one waits, dimmed, under your day streak until you reach it.
• Progress has a Streaks card with your best day streak and best combo.
• After a Challenge run, the review shows your longest run of right answers and how close you came to your best.
• The weekly board lands at once on Progress.
• Phones stay upright; iPads turn as before.

### 1.1.5 — 2026-10-17

On iPad and Mac, the end-of-run review now fills the screen, and Train keeps its size when you resize the window. Progress opens with the weekly leaderboard, so its reveal plays where you can see it, followed by Insights and your recent Challenge runs. A rule's star stays once you earn it; if the rule later slips below 85%, the star dims and Practice brings it back.

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## More apps by Zoltan Berki

- [Spotneck: Audiobook Player](https://appshunter.io/ios/app/spotneck-audiobook-player/id6829180067)

All apps by Zoltan Berki: https://appshunter.io/developer/6816500437

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-10.*