# CEFREF vs D24 Tan

The clearest difference is in-app purchases: D24 Tan at none against CEFREF's 3. D24 Tan also leads on iOS requirement (11.0 vs 16.0). CEFREF's advantage is device support. On price there is nothing between them.

Both are free to download. CEFREF sells 3 in-app purchases, starting at $2.99 per month. D24 Tan asks for nothing beyond the download.

## The numbers

| Metric | CEFREF | D24 Tan |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Update frequency | Every 3 weeks | — |
| Monetization | Free with in-app purchases | — |
| Size | 81 MB | 42 MB |
| Requires iOS | 16.0 | **11.0** |
| Devices | **iPhone, iPad** | — |
| Age rating | 12+ | 4+ |
| Developer | [Ceftronics Limited](https://appshunter.io/developer/1594794451) | [Flashcom](https://appshunter.io/developer/1528123117) |

## What reviewers say

### CEFREF

[App page](https://appshunter.io/ios/app/cefref-migraine-tracker/id1594794449)

This app simplifies migraine tracking with quick logging of pain and medication. It helps users identify patterns and generates shareable PDF reports for healthcare providers. Designed for ease of use without ads or distractions.

**Highlights:** Quick headache and medication logging, Identify migraine patterns and trends, Generate shareable PDF reports, Ad-free and private tracking, Simple, clutter-free interface

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CEFREF Premium | $2.99 | per month |
| Data Export | $0.99 | one-time |
| CEFREF Premium | $9.99 | one-time |


### D24 Tan

[App page](https://appshunter.io/ios/app/d24-tan/id6475330145)

**In-app purchases:** none


## Frequently asked questions

### Is CEFREF free?

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

### Is D24 Tan free?

D24 Tan is free to download, with no in-app purchases.

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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.*