# kCal vs Cephalo

The clearest difference is in-app purchases: kCal at none against Cephalo's 2. kCal also leads on iOS requirement (12.1 vs 17.6). Cephalo's advantage is update cadence (every 2 weeks vs every 4 months). On price, ads and device support there is nothing between them.

Both are free to download. Cephalo sells 2 in-app purchases, starting at $2.99 per month. kCal asks for nothing beyond the download.

kCal ships an update every 4 months, Cephalo every 2 weeks. The most recent releases landed on October 27, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | kCal | Cephalo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 weeks** |
| Size | 33 MB | 13 MB |
| Requires iOS | **12.1** | 17.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Startup Incubator Inc](https://appshunter.io/developer/1576457069) | [Iterica B.V.](https://appshunter.io/developer/1832191465) |

## What reviewers say

### kCal

[App page](https://appshunter.io/ios/app/kcal/id1576457067)

**In-app purchases:** none


### Cephalo

[App page](https://appshunter.io/ios/app/cephalo-headache-diary/id6749801188)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cephalo Plus Monthly | $2.99 | per month |
| Cephalo Plus Yearly | $24.99 | per year |


## Frequently asked questions

### Is kCal free?

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

### Is Cephalo free?

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

### Do kCal or Cephalo have ads?

Neither kCal nor Cephalo shows ads.

### Which is updated more often, kCal or Cephalo?

kCal ships an update every 4 months, and Cephalo every 2 weeks. Most recently, kCal was updated on October 27, 2026 and Cephalo on September 29, 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.*