# Focus vs Timelapse Ref Calc

The clearest difference is price: Focus at Free against Timelapse Ref Calc's $0.49. Focus also leads on update cadence (every 4 weeks vs every 4 months). Timelapse Ref Calc's advantage is in-app purchases (none vs 3) and iOS requirement (13.0 vs 15.6). On ads and device support there is nothing between them.

Focus is free to download; Timelapse Ref Calc costs $0.49 up front. Focus sells 3 in-app purchases, starting at $5.99 per 7 days. Timelapse Ref Calc asks for nothing beyond the download.

Focus ships an update every 4 weeks, Timelapse Ref Calc every 4 months. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Focus | Timelapse Ref Calc |
| --- | --- | --- |
| Price | **Free** | $0.49 |
| Rating | **[4.7 (50 ratings)](https://appshunter.io/ios/app/focus-lofi-study-music/id1603612890/reviews)** | — |
| Number of ratings | **50** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 4 months |
| Monetization | Freemium | — |
| Size | 54 MB | 0 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Shivam Sompura](https://appshunter.io/developer/1542250874) | [Stein Erik Nilsen](https://appshunter.io/developer/1737251651) |

## What reviewers say

### Focus

[App page](https://appshunter.io/ios/app/focus-lofi-study-music/id1603612890)

Enhance concentration with ad-free lofi beats and ambient sounds designed for studying, working, or reading. Access music offline and utilize scientifically crafted tracks to boost brain activity and achieve peak performance.

**Highlights:** Ad-free listening experience, Offline music access, Lofi beats and ambient sounds, Brain FM-inspired tracks, Concentration flow enhancement, Pomodoro study timer

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Study Focus Weekly | $5.99 | per 7 days |
| Study Music Yearly Access | $99.99 | per year |
| Study Focus Lifetime | $9.99 | one-time |


### Timelapse Ref Calc

[App page](https://appshunter.io/ios/app/timelapse-ref-calc/id6482289854)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Focus free?

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

### Is Timelapse Ref Calc free?

Timelapse Ref Calc costs $0.49, with no in-app purchases.

### Do Focus or Timelapse Ref Calc have ads?

Neither Focus nor Timelapse Ref Calc shows ads.

### Which is updated more often, Focus or Timelapse Ref Calc?

Focus ships an update every 4 weeks, and Timelapse Ref Calc every 4 months. Most recently, Focus was updated on November 3, 2026 and Timelapse Ref Calc on November 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.*