# Frog Otto vs BLE Serial tiny

The clearest difference is iOS requirement: Frog Otto at 10.0 against BLE Serial tiny's 15.0. 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 3 weeks. The most recent releases landed on September 28, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Frog Otto | BLE Serial tiny |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/frog-otto/id1468989742/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free | — |
| Size | 15 MB | 1 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [克俭 左](https://appshunter.io/developer/1449795321) | [Ed Nieuwenhuys](https://appshunter.io/developer/1602239702) |

## What reviewers say

### Frog Otto

[App page](https://appshunter.io/ios/app/frog-otto/id1468989742)

Control a biped robot using a Bluetooth 4.0 connection. This application allows for a variety of actions to be performed by the robot through its interface.

**Highlights:** Bluetooth 4.0 connectivity, Control biped robot actions, Variety of button controls, Robot movement customization

**Features:** macOS Compatibility

**In-app purchases:** none


### BLE Serial tiny

[App page](https://appshunter.io/ios/app/ble-serial-tiny/id1607862132)

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

**In-app purchases:** none


## Frequently asked questions

### Is Frog Otto free?

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

### Is BLE Serial tiny free?

BLE Serial tiny is free to download, with no in-app purchases.

### Do Frog Otto or BLE Serial tiny have ads?

Neither Frog Otto nor BLE Serial tiny shows ads.

### Which is updated more often, Frog Otto or BLE Serial tiny?

Frog Otto ships an update every 3 weeks, and BLE Serial tiny every 3 weeks. Most recently, Frog Otto was updated on September 28, 2026 and BLE Serial tiny on October 2, 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.*