# Imystery Audit vs Polyrium

The clearest difference is update cadence: Polyrium at weekly against Imystery Audit's monthly. Imystery Audit's advantage is iOS requirement (8.0 vs 26.6). 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.

Imystery Audit ships an update monthly, Polyrium weekly. Both last shipped on October 24, 2026.

## The numbers

| Metric | Imystery Audit | Polyrium |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Monetization | Free | — |
| Size | 15 MB | 2 MB |
| Requires iOS | **8.0** | 26.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ROMIR Holding OOO](https://appshunter.io/developer/1176506607) | [Gagan Daniel](https://appshunter.io/developer/6773262682) |

## What reviewers say

### Imystery Audit

[App page](https://appshunter.io/ios/app/imystery-audit/id1176506608)

This utility app facilitates retail audits through visual inspection of in-store products, store presentation, and service quality. It helps businesses monitor merchandise and operational standards directly at the point of sale.

**Highlights:** Visual product inspection, Store presentation assessment, Service quality evaluation, Point-of-sale monitoring, Retail audit facilitation

**Features:** macOS Compatibility

**In-app purchases:** none


### Polyrium

[App page](https://appshunter.io/ios/app/polyrium-predict-smart/id6773262680)

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

**In-app purchases:** none


## Frequently asked questions

### Is Imystery Audit free?

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

### Is Polyrium free?

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

### Do Imystery Audit or Polyrium have ads?

Neither Imystery Audit nor Polyrium shows ads.

### Which is updated more often, Imystery Audit or Polyrium?

Imystery Audit ships an update monthly, and Polyrium weekly. Most recently, Imystery Audit was updated on October 24, 2026 and Polyrium on October 24, 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.*