# Unfog vs StudyDaily

The clearest difference is update cadence: Unfog at every 2 days against StudyDaily's fortnightly. StudyDaily's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Unfog sells 3 in-app purchases, starting at $2.99 per 7 days and StudyDaily sells 3 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Unfog ships an update every 2 days, StudyDaily fortnightly. The most recent releases landed on October 17, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Unfog | StudyDaily |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Fortnightly |
| Size | 80 MB | 52 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | **iPhone, iPad, Mac** |
| Age rating | 4+ | 12+ |
| Developer | [BITSEC SP. Z O.O.](https://appshunter.io/developer/1801990616) | [LIFTOFF](https://appshunter.io/developer/1556928762) |

## What reviewers say

### Unfog

[App page](https://appshunter.io/ios/app/unfog-feynman-study-notes/id6776245365)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unfog weekly | $2.99 | per 7 days |
| Unfog Monthly | $17.99 | per month |
| Unfog Annual | $29.99 | per year |


### StudyDaily

[App page](https://appshunter.io/ios/app/studydaily-flashcard-study/id6799936066)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $1.99 | per 7 days |
| Premium Annual | $29.99 | per year |
| Premium Lifetime | $69.99 | one-time |


## Frequently asked questions

### Is Unfog free?

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

### Is StudyDaily free?

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

### Do Unfog or StudyDaily have ads?

Neither Unfog nor StudyDaily shows ads.

### Which is updated more often, Unfog or StudyDaily?

Unfog ships an update every 2 days, and StudyDaily fortnightly. Most recently, Unfog was updated on October 17, 2026 and StudyDaily on October 4, 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.*