# Cogni vs Testbusters

The clearest difference is rating: Cogni at 4.7 against Testbusters's 1.0. Cogni also leads on ratings volume (1.7K vs 1). Testbusters's advantage is in-app purchases (none vs 9). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Cogni sells 9 in-app purchases, starting at $4.99 per month. Testbusters asks for nothing beyond the download.

Cogni holds the better App Store score, 4.7 against 1.0. That said, the two scores are not equally well evidenced: Cogni has 1.7K ratings behind it against 1, so its average is the more settled of the two.

Cogni ships an update every 9 days, Testbusters every 10 days. Both last shipped on October 30, 2026.

## The numbers

| Metric | Cogni | Testbusters |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (1.7K ratings)](https://appshunter.io/ios/app/cogni-ai-flashcards-and-notes/id6737768905/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/testbusters/id6754759157/reviews) |
| Number of ratings | **1.7K** | 1 |
| Positive reviews | 35.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 10 days |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 69 MB | 40 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [COGNIFLY LTD](https://appshunter.io/developer/1808620132) | [Squezy S.R.L.](https://appshunter.io/developer/1338710332) |

## What reviewers say

### Cogni

[App page](https://appshunter.io/ios/app/cogni-ai-flashcards-and-notes/id6737768905)

Create and study flashcards using an AI-enhanced spaced repetition algorithm to optimize learning. Access a vast library of pre-made decks and track your progress with detailed statistics. Study offline with media-supported flashcards.

**Highlights:** AI-enhanced spaced repetition, Create and review flashcards, Library of pre-made decks, Detailed statistics and progress tracking, Offline access with media support, Customizable flashcard creation

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $4.99 | per month |
| Premium Monthly | $7.99 | per month |
| Premium Monthly | $14.99 | per month |
| Premium Annual | $19.99 | per year |
| Premium Annual | $24.99 | per year |
| Premium Annual | $29.99 | per year |
| Premium Annual | $49.99 | per year |
| Lifetime Premium | $69.99 | one-time |
| Premium Lifetime | $99.99 | one-time |

**What reviewers like**

- 👍 Great app for memorizing and growing recall skills
- 🚀 Lifesaver for challenging, memory-heavy subjects like med school
- 👍 Sleek and user-friendly interface, no distractions

**What reviewers complain about**

- 🐛 Locked up referring to an upgrade page, couldn't continue using the app
- 🐛 Not easy to use, inaccurate for Spanish language
- 🐛 Desktop flashcards deck won't sync with mobile, forcing duplicate work

**Reported bugs**

- App no longer available after paying for annual subscription
- Occasional crashes

**Requested features**

- Integrate ChatGPT or Claude for automatic card creation
- Add sub-decks for larger decks that need more review
- Improve algorithm for hard/again ratings to better target struggling cards
- Add subsections for decks to study different sections separately


### Testbusters

[App page](https://appshunter.io/ios/app/testbusters/id6754759157)

Prepare for university admission tests with a comprehensive simulator featuring thousands of updated questions. Track your progress with detailed statistics and practice anytime, anywhere. Offers free simulations to discover the study method.

**Highlights:** Thousands of updated admission test questions, Realistic simulation experience, Detailed progress statistics, Practice anytime, anywhere, Synchronization with web app, Free simulation selection

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

**In-app purchases:** none


## Frequently asked questions

### Is Cogni free?

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

### Is Testbusters free?

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

### Which has better reviews, Cogni or Testbusters?

Cogni is rated higher. Cogni averages 4.7 out of 5 from 1.7K ratings, while Testbusters averages 1.0 from 1 ratings.

### Do Cogni or Testbusters have ads?

Neither Cogni nor Testbusters shows ads.

### Which is updated more often, Cogni or Testbusters?

Cogni ships an update every 9 days, and Testbusters every 10 days. Most recently, Cogni was updated on October 30, 2026 and Testbusters on October 30, 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.*