# StackerTools App vs Probe Innov

The clearest difference is update cadence: StackerTools App at every 2 weeks against Probe Innov's every 2 months. Probe Innov's advantage is iOS requirement (10.0 vs 14.0). On price, ads, in-app purchases and device support there is nothing between them.

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

StackerTools App ships an update every 2 weeks, Probe Innov every 2 months. The most recent releases landed on October 19, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | StackerTools App | Probe Innov |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (19 ratings)](https://appshunter.io/ios/app/stackertools-app/id6502847897/reviews)** | — |
| Number of ratings | **19** | — |
| Positive reviews | 93.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Free | — |
| Size | 45 MB | 25 MB |
| Requires iOS | 14.0 | **10.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SoundMoneyMetals](https://appshunter.io/developer/1747030161) | [Shenzhen Ruiteng Sci Tech Innovation Technology Co., Ltd](https://appshunter.io/developer/1847134510) |

## What reviewers say

### StackerTools App

[App page](https://appshunter.io/ios/app/stackertools-app/id6502847897)

Detect counterfeit precious metals like gold, silver, and bullion using sound. This tool acts as a bar and coin tester, helping you verify authenticity.

**Highlights:** Counterfeit detection, Verify gold coins, Verify silver coins, Test bullion, Sound-based analysis, Bar and coin tester

**Features:** macOS Compatibility

**In-app purchases:** none


### Probe Innov

[App page](https://appshunter.io/ios/app/probe-innov/id6754214133)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is StackerTools App free?

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

### Is Probe Innov free?

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

### Do StackerTools App or Probe Innov have ads?

Neither StackerTools App nor Probe Innov shows ads.

### Which is updated more often, StackerTools App or Probe Innov?

StackerTools App ships an update every 2 weeks, and Probe Innov every 2 months. Most recently, StackerTools App was updated on October 19, 2026 and Probe Innov on October 13, 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.*