# Interval Working vs Caser Starbien

The clearest difference is ads: Caser Starbien at none against Interval Working's shown. Caser Starbien also leads on iOS requirement (13.0 vs 15.6). On price, update cadence, in-app purchases and device support there is nothing between them.

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

Interval Working ships an update every 6 months, Caser Starbien every 5 months. The most recent releases landed on October 17, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Interval Working | Caser Starbien |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 14.3% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 6 months | **Every 5 months** |
| Monetization | — | Free |
| Size | 51 MB | 20 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [David Fernandez-Vegue Garcia](https://appshunter.io/developer/1576667472) | [Caser Seguros](https://appshunter.io/developer/394869100) |

## What reviewers say

### Interval Working

[App page](https://appshunter.io/ios/app/interval-working/id1576667470)

**Features:** Vision Pro support

**In-app purchases:** none


### Caser Starbien

[App page](https://appshunter.io/ios/app/caser-starbien/id1588988732)

This app offers unlimited video consultations with doctors and motivates users to adopt healthier habits through step challenges. Achieving daily step goals can earn users a discount on their life insurance policy.

**Highlights:** Unlimited video consultations with doctors, Daily step challenges, Syncs with Apple Health, Earn discounts on life insurance, Motivates healthy habits

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Interval Working free?

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

### Is Caser Starbien free?

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

### Do Interval Working or Caser Starbien have ads?

Interval Working shows ads; Caser Starbien does not.

### Which is updated more often, Interval Working or Caser Starbien?

Interval Working ships an update every 6 months, and Caser Starbien every 5 months. Most recently, Interval Working was updated on October 17, 2026 and Caser Starbien on October 5, 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.*