# ECG Articles vs StudyCal

The clearest difference is in-app purchases: ECG Articles at none against StudyCal's 3. ECG Articles also leads on update cadence (daily vs every 2 days). StudyCal's advantage is ads (none vs shown) and iOS requirement (15.0 vs 17.0). On price and device support there is nothing between them.

Both are free to download. StudyCal sells 3 in-app purchases, starting at $0.99 per month. ECG Articles asks for nothing beyond the download.

ECG Articles ships an update daily, StudyCal every 2 days. The most recent releases landed on October 30, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | ECG Articles | StudyCal |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Daily** | Every 2 days |
| Size | 4 MB | 59 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [KAIRI DAIHO](https://appshunter.io/developer/1845415966) | [Kazuaki Takahashi](https://appshunter.io/developer/1691521543) |

## What reviewers say

### ECG Articles

[App page](https://appshunter.io/ios/app/ecg-articles/id6756026264)

**Features:** macOS Compatibility

**In-app purchases:** none


### StudyCal

[App page](https://appshunter.io/ios/app/studycal-study-planner/id6785962096)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro+ 月額プラン | $0.99 | per month |
| Pro+ 年額プラン | $9.99 | per year |
| 勉強カレンダー Pro | $1.99 | one-time |


## Frequently asked questions

### Is ECG Articles free?

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

### Is StudyCal free?

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

### Do ECG Articles or StudyCal have ads?

ECG Articles shows ads; StudyCal does not.

### Which is updated more often, ECG Articles or StudyCal?

ECG Articles ships an update daily, and StudyCal every 2 days. Most recently, ECG Articles was updated on October 30, 2026 and StudyCal on November 1, 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.*