# KRIO vs Fly Robin

The clearest difference is update cadence: KRIO at every 3 weeks against Fly Robin's every 2 months. KRIO also leads on iOS requirement (15.1 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. KRIO sells 2 in-app purchases, starting at $14.99 per month and Fly Robin sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

KRIO ships an update every 3 weeks, Fly Robin every 2 months. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | KRIO | Fly Robin |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Size | 109 MB | 12 MB |
| Requires iOS | **15.1** | 26.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Ophanic Yazilim Teknoloji Ve Danismanlik Anonim Sirketi](https://appshunter.io/developer/1761557711) | [SULE ERDOGAN](https://appshunter.io/developer/1711961038) |

## What reviewers say

### KRIO

[App page](https://appshunter.io/ios/app/krio-gym-workout-tracker/id6756307979)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Krio Pro Monthly | $14.99 | per month |
| Krio Pro Annual | $59.99 | per year |


### Fly Robin

[App page](https://appshunter.io/ios/app/fly-robin/id6775573079)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Robin Plus | $2.99 | per month |
| Robin Plus | $19.99 | per year |


## Frequently asked questions

### Is KRIO free?

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

### Is Fly Robin free?

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

### Do KRIO or Fly Robin have ads?

Neither KRIO nor Fly Robin shows ads.

### Which is updated more often, KRIO or Fly Robin?

KRIO ships an update every 3 weeks, and Fly Robin every 2 months. Most recently, KRIO was updated on October 30, 2026 and Fly Robin 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.*