# Quantify 4 vs FocusDown

The clearest difference is price: Quantify 4 at Free against FocusDown's $1.99. Quantify 4 also leads on device support (3 vs 1). FocusDown's advantage is update cadence (every 9 days vs every 21 months). On ads, in-app purchases and iOS requirement there is nothing between them.

Quantify 4 is free to download; FocusDown costs $1.99 up front. Quantify 4 sells 1 one-off in-app purchase and FocusDown sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Quantify 4 ships an update every 21 months, FocusDown every 9 days. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Quantify 4 | FocusDown |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/focusdown-face-down-focus/id6783893731/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 21 months | **Every 9 days** |
| Monetization | — | Subscription |
| Size | 89 MB | 26 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [KENJI KANEMOTO](https://appshunter.io/developer/402720982) | [春城 贾](https://appshunter.io/developer/1501061855) |

## What reviewers say

### Quantify 4

[App page](https://appshunter.io/ios/app/quantify-4/id6448651638)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.49 | one-time |


### FocusDown

[App page](https://appshunter.io/ios/app/focusdown-face-down-focus/id6783893731)

This app encourages users to put their phone down by using a face-down timer. It detects movement and tilting to remind you to stay focused until the session ends. Build better focus habits with dedicated sessions for studying, work, or reading.

**Highlights:** Face-down focus timer, Custom session duration, Movement and tilt reminders, Focus history tracking, Daily and weekly statistics, Achievement badges

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Member | $0.99 | per month |
| Annual Member | $1.99 | per year |
| Lifetime | $2.99 | one-time |


## Frequently asked questions

### Is Quantify 4 free?

Quantify 4 is free to download, with in-app purchases available.

### Is FocusDown free?

FocusDown costs $1.99, and also offers in-app purchases.

### Do Quantify 4 or FocusDown have ads?

Neither Quantify 4 nor FocusDown shows ads.

### Which is updated more often, Quantify 4 or FocusDown?

Quantify 4 ships an update every 21 months, and FocusDown every 9 days. Most recently, Quantify 4 was updated on October 27, 2026 and FocusDown on October 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*