# Unlimited Math Problems vs AI Study & Flashcards · Recall

The clearest difference is in-app purchases: Unlimited Math Problems at none against AI Study & Flashcards · Recall's 12. AI Study & Flashcards · Recall's advantage is review sentiment (83% vs 64%) and update cadence (weekly vs every 3 weeks). On price, rating and ads there is nothing between them.

Both are free to download. AI Study & Flashcards · Recall sells 9 in-app purchases, starting at $3.99 per 7 days. Unlimited Math Problems asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.5 for Unlimited Math Problems against 4.6 for AI Study & Flashcards · Recall. Both are backed by a comparable volume of ratings — 53 and 250 respectively. Written reviews are what separate them: 64% of Unlimited Math Problems's written reviews are positive against 83% of AI Study & Flashcards · Recall's.

Unlimited Math Problems ships an update every 3 weeks, AI Study & Flashcards · Recall weekly. The most recent releases landed on September 9, 2026 and September 2, 2026 respectively.

## The numbers

| Metric | Unlimited Math Problems | AI Study & Flashcards · Recall |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (53 ratings)](https://appshunter.io/ios/app/unlimited-math-problems/id1244547440/reviews) | **[4.6 (250 ratings)](https://appshunter.io/ios/app/ai-study-and-flashcards-recall/id6473355207/reviews)** |
| Number of ratings | 53 | **250** |
| Positive reviews | 64.3% of reviews | **83.2% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 17 MB | 55 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [Madiyar Aitbayev](https://appshunter.io/developer/1229466587) | [Giuseppe Lupo](https://appshunter.io/developer/1536647610) |

## What reviewers say

### Unlimited Math Problems

[App page](https://appshunter.io/ios/app/unlimited-math-problems/id1244547440)

Master your math skills with an app that generates an endless supply of practice problems. It offers various interaction types and covers multiple math subjects, suitable for all skill levels.

**Highlights:** Infinite problem generation, Keyboard, multiple choice, true/false inputs, Varied problem types per subject, Covers early math, arithmetic, fractions, number theory, decimals, trigonometry, Suitable for beginners and experienced users

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

**In-app purchases:** none


### AI Study & Flashcards · Recall

[App page](https://appshunter.io/ios/app/ai-study-and-flashcards-recall/id6473355207)

Boost your memory retention with AI-powered summaries, quizzes, and audio playback. This app helps you understand and recall information more effectively through personalized learning paths and mnemonic techniques.

**Highlights:** AI-powered summarization, Interactive self-testing quizzes, Audio playback of information, Mnemonic device integration, User-generated summaries and ratings, Personalized learning paths

**Features:** macOS Compatibility

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Recall AI Premium | $3.99 | per 7 days |
| IIRC Premium | $3.99 | per month |
| IIRC Premium | $5.99 | per month |
| IIRC Gold (Yearly) | $9.99 | per year |
| IIRC Gold (Yearly) | $39.99 | per year |
| IIRC Gold (Yearly) | $59.99 | per year |
| Lifetime IIRC Gold | $39.99 | one-time |
| Lifetime IIRC Gold | $79.99 | one-time |
| Lifetime IIRC Gold | $119.99 | one-time |

**What reviewers like**

- 👍 Excellent app that summarizes articles well
- 🚀 Streamlined and intuitive user experience
- 💡 Innovative use of AI for learning and retention
- 🧠 Helpful for improving memory and focus
- 🎓 Great for students and lifelong learners

**What reviewers complain about**

- 🐛 Occasional crashes or bugs
- 💰 Concerns about the 'free lifetime' offer being misleading
- 🔒 Accessibility issues with unlabeled buttons
- 🔍 Limited support for certain file types or websites

**Reported bugs**

- Inability to restore premium accounts after reinstallation
- Sharing functionality not working as expected
- Slow performance or long processing times for some tasks

**Requested features**

- Broader support for integrating with other apps and platforms
- Addition of audio/video summarization capabilities
- Customizable learning settings and personalization options
- Improved accessibility features for users with disabilities


## Frequently asked questions

### Is Unlimited Math Problems free?

Unlimited Math Problems is free to download, with no in-app purchases.

### Is AI Study & Flashcards · Recall free?

AI Study & Flashcards · Recall is free to download, with in-app purchases available.

### Which has better reviews, Unlimited Math Problems or AI Study & Flashcards · Recall?

AI Study & Flashcards · Recall is rated higher. Unlimited Math Problems averages 4.5 out of 5 from 53 ratings, while AI Study & Flashcards · Recall averages 4.6 from 250 ratings.

### Do Unlimited Math Problems or AI Study & Flashcards · Recall have ads?

Neither Unlimited Math Problems nor AI Study & Flashcards · Recall shows ads.

### Which is updated more often, Unlimited Math Problems or AI Study & Flashcards · Recall?

Unlimited Math Problems ships an update every 3 weeks, and AI Study & Flashcards · Recall weekly. Most recently, Unlimited Math Problems was updated on September 9, 2026 and AI Study & Flashcards · Recall on September 2, 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.*