# OpoLua vs Tune Sampler

The clearest difference is update cadence: Tune Sampler at every 9 days against OpoLua's every 7 months. OpoLua's advantage is device support (4 vs 2) and iOS requirement (15.0 vs 17.2). On price, 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.

OpoLua ships an update every 7 months, Tune Sampler every 9 days. The most recent releases landed on October 20, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | OpoLua | Tune Sampler |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 9 days** |
| Monetization | Free | — |
| Size | 9 MB | 3 MB |
| Requires iOS | **15.0** | 17.2 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Jason Morley](https://appshunter.io/developer/1711473431) | [Xu Ke](https://appshunter.io/developer/1649907339) |

## What reviewers say

### OpoLua

[App page](https://appshunter.io/ios/app/opolua/id1604029880)

This utility allows users to view and interact with files from Psion computers, including image files, scripts, and resources. It also supports listening to sound files and running OPL scripts and programs directly on compatible devices.

**Highlights:** View MBM image files, View OPL scripts, View AIF resources, Listen to sound files, Run OPL scripts and programs

**Features:** Game Controller support

**In-app purchases:** none


### Tune Sampler

[App page](https://appshunter.io/ios/app/tune-sampler/id6475165680)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OpoLua free?

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

### Is Tune Sampler free?

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

### Do OpoLua or Tune Sampler have ads?

Neither OpoLua nor Tune Sampler shows ads.

### Which is updated more often, OpoLua or Tune Sampler?

OpoLua ships an update every 7 months, and Tune Sampler every 9 days. Most recently, OpoLua was updated on October 20, 2026 and Tune Sampler on October 25, 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.*