# Proselector vs PolyInvert

The clearest difference is in-app purchases: Proselector at none against PolyInvert's 1. Proselector also leads on ads (none vs shown). PolyInvert's advantage is update cadence (daily vs every 2 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. PolyInvert sells 1 one-off in-app purchase. Proselector asks for nothing beyond the download.

Proselector ships an update every 2 weeks, PolyInvert daily. The most recent releases landed on September 22, 2026 and September 5, 2026 respectively.

## The numbers

| Metric | Proselector | PolyInvert |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | **Daily** |
| Size | 45 MB | 8 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Gi' Lyd ApS](https://appshunter.io/developer/1811751710) | [ADAM MICHAEL OGDEN](https://appshunter.io/developer/1854648813) |

## What reviewers say

### Proselector

[App page](https://appshunter.io/ios/app/proselector/id6745315379)

**In-app purchases:** none


### PolyInvert

[App page](https://appshunter.io/ios/app/polyinvert/id6755578020)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is Proselector free?

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

### Is PolyInvert free?

PolyInvert is free to download, with in-app purchases available.

### Do Proselector or PolyInvert have ads?

PolyInvert shows ads; Proselector does not.

### Which is updated more often, Proselector or PolyInvert?

Proselector ships an update every 2 weeks, and PolyInvert daily. Most recently, Proselector was updated on September 22, 2026 and PolyInvert on September 5, 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.*