# PaperMind AI vs Return Window Radar

PaperMind AI and Return Window Radar are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. PaperMind AI sells 2 in-app purchases, starting at $9.99 per month and Return Window Radar sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

PaperMind AI ships an update every 4 days, Return Window Radar weekly. The most recent releases landed on November 5, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | PaperMind AI | Return Window Radar |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Weekly |
| Size | 2 MB | 50 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Oleksandr Karpenko](https://appshunter.io/developer/1896571932) | [Antonio Vargas](https://appshunter.io/developer/1785352771) |

## What reviewers say

### PaperMind AI

[App page](https://appshunter.io/ios/app/papermind-ai-bill-tracker/id6768876062)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PaperMind Pro Monthly | $9.99 | per month |
| PaperMind Pro Yearly | $69.99 | per year |


### Return Window Radar

[App page](https://appshunter.io/ios/app/return-window-radar/id6785049120)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Radar Pro - Unlimited Tracking | $2.99 | one-time |


## Frequently asked questions

### Is PaperMind AI free?

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

### Is Return Window Radar free?

Return Window Radar is free to download, with in-app purchases available.

### Do PaperMind AI or Return Window Radar have ads?

Neither PaperMind AI nor Return Window Radar shows ads.

### Which is updated more often, PaperMind AI or Return Window Radar?

PaperMind AI ships an update every 4 days, and Return Window Radar weekly. Most recently, PaperMind AI was updated on November 5, 2026 and Return Window Radar on November 10, 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.*