# COSTFA vs Study Timer

The clearest difference is ads: COSTFA at none against Study Timer's shown. Study Timer's advantage is update cadence (every 2 days vs every 11 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

COSTFA ships an update every 11 months, Study Timer every 2 days. The most recent releases landed on September 10, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | COSTFA | Study Timer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 11 months | **Every 2 days** |
| Size | 9 MB | 36 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Calibsoft Technologies](https://appshunter.io/developer/1018587443) | [Ryan Impey](https://appshunter.io/developer/1773084455) |

## What reviewers say

### COSTFA

[App page](https://appshunter.io/ios/app/costfa/id1562296920)

**Features:** macOS Compatibility

**In-app purchases:** none


### Study Timer

[App page](https://appshunter.io/ios/app/study-timer-focus-fish/id6745766537)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is COSTFA free?

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

### Is Study Timer free?

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

### Do COSTFA or Study Timer have ads?

Study Timer shows ads; COSTFA does not.

### Which is updated more often, COSTFA or Study Timer?

COSTFA ships an update every 11 months, and Study Timer every 2 days. Most recently, COSTFA was updated on September 10, 2026 and Study Timer on September 11, 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.*