# Sumerly vs Calasanz

The clearest difference is in-app purchases: Calasanz at none against Sumerly's 5. Calasanz also leads on ads (none vs shown). Sumerly's advantage is iOS requirement (13.0 vs 15.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Sumerly sells 5 in-app purchases, starting at $1.99 per 7 days. Calasanz asks for nothing beyond the download.

Sumerly ships an update weekly, Calasanz every 10 days. The most recent releases landed on October 15, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Sumerly | Calasanz |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 10 days |
| Monetization | Free with in-app purchases | — |
| Size | 65 MB | 71 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Volva, Inc.](https://appshunter.io/developer/1576775478) | [Nunez Bravo y Compania Limitada](https://appshunter.io/developer/1747101990) |

## What reviewers say

### Sumerly

[App page](https://appshunter.io/ios/app/sumerly/id6467805923)

This app uses AI to create personalized flashcards and optimize study time for better knowledge retention. It offers multimedia-rich question creation and smart reminders to combat procrastination and maintain a consistent study schedule.

**Highlights:** AI-powered flashcard creation, Personalized learning adaptation, Multimedia-rich question building, Study schedule optimization, Procrastination combat reminders, Progress tracking

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sumerly Premium | $1.99 | per 7 days |
| Sumerly Premium | $2.99 | per month |
| Sumerly Premium | $3.99 | per month |
| Sumerly Premium | $19.99 | per year |
| Sumerly Premium | $29.99 | per year |


### Calasanz

[App page](https://appshunter.io/ios/app/calasanz-leon/id6740997720)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sumerly free?

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

### Is Calasanz free?

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

### Do Sumerly or Calasanz have ads?

Sumerly shows ads; Calasanz does not.

### Which is updated more often, Sumerly or Calasanz?

Sumerly ships an update weekly, and Calasanz every 10 days. Most recently, Sumerly was updated on October 15, 2026 and Calasanz on October 12, 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.*