# IODA Optimist vs ROCKBROS

The clearest difference is iOS requirement: IODA Optimist at 11.0 against ROCKBROS's 13.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on December 14, 2025 and September 8, 2026 respectively.

## The numbers

| Metric | IODA Optimist | ROCKBROS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/rockbros/id6747660056/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | — | Free |
| Size | 67 MB | 118 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Agencia Interactiva Balear S.L.](https://appshunter.io/developer/960712124) | [义乌洛克体育用品有限公司](https://appshunter.io/developer/1769998321) |

## What reviewers say

### IODA Optimist

[App page](https://appshunter.io/ios/app/ioda-optimist/id6504682148)

**Features:** macOS Compatibility

**In-app purchases:** none


### ROCKBROS

[App page](https://appshunter.io/ios/app/rockbros/id6747660056)

Connect your cycle computer and indoor trainers for comprehensive data analysis. This app offers professional insights and dedicated services for cycling enthusiasts to enhance their indoor training.

**Highlights:** Cycle computer connectivity, Indoor trainer support, Professional data analytics, Dedicated indoor training services, Seamless indoor training sessions

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

**In-app purchases:** none


## Frequently asked questions

### Is IODA Optimist free?

IODA Optimist is free to download, with no in-app purchases.

### Is ROCKBROS free?

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

### Do IODA Optimist or ROCKBROS have ads?

Neither IODA Optimist nor ROCKBROS shows ads.

### Which is updated more often, IODA Optimist or ROCKBROS?

IODA Optimist ships an update every 2 months, and ROCKBROS every 2 months. Most recently, IODA Optimist was updated on December 14, 2025 and ROCKBROS on September 8, 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.*