# Calio vs RoundShift

The clearest difference is update cadence: RoundShift at every 2 days against Calio's monthly. RoundShift also leads on device support (4 vs 2). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Calio sells 3 in-app purchases, starting at $3.99 per month and RoundShift sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Calio ships an update monthly, RoundShift every 2 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | Calio | RoundShift |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/roundshift-interval-timer/id6793125180/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 days** |
| Monetization | — | Free with in-app purchases |
| Size | 52 MB | 143 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Shodiyor Nodirov](https://appshunter.io/developer/1896482792) | [Carl Law](https://appshunter.io/developer/1671704999) |

## What reviewers say

### Calio

[App page](https://appshunter.io/ios/app/calio-eat-and-track/id6780427539)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $3.99 | per month |
| 3 Months Pro | $9.99 | per 3 months |
| Yearly Pro | $29.99 | per year |


### RoundShift

[App page](https://appshunter.io/ios/app/roundshift-interval-timer/id6793125180)

This interval timer app provides voice coaching for various workout types, allowing you to keep your eyes on your exercise rather than the screen. It offers customizable presets, multiple voice options, and can even display workouts on a larger screen for group sessions. Advanced features like adaptive rest and Apple Health integration are available with a Pro upgrade.

**Highlights:** Voice coaching for workouts, Customizable interval presets, Plain language workout builder, Multi-language coach voices, Screen-off and face-down operation, AirPlay for group sessions, Adaptive rest with Apple Watch

**Features:** Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Intervo Pro (Lifetime) | $4.99 | one-time |


## Frequently asked questions

### Is Calio free?

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

### Is RoundShift free?

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

### Do Calio or RoundShift have ads?

Neither Calio nor RoundShift shows ads.

### Which is updated more often, Calio or RoundShift?

Calio ships an update monthly, and RoundShift every 2 days. Most recently, Calio was updated on October 31, 2026 and RoundShift on October 31, 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.*