# PAYFIN ATOM vs Walter Writes

The clearest difference is in-app purchases: PAYFIN ATOM at none against Walter Writes's 6. PAYFIN ATOM also leads on device support (3 vs 1) and iOS requirement (15.1 vs 17.0). Walter Writes's advantage is update cadence (fortnightly vs every 7 months). On price and ads there is nothing between them.

Both are free to download. Walter Writes sells 6 in-app purchases, starting at $12.00 per month. PAYFIN ATOM asks for nothing beyond the download.

PAYFIN ATOM ships an update every 7 months, Walter Writes fortnightly. The most recent releases landed on October 18, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | PAYFIN ATOM | Walter Writes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (29 ratings)](https://appshunter.io/ios/app/walter-writes-ai-humanizer/id6757705138/reviews)** |
| Number of ratings | — | **29** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Fortnightly** |
| Monetization | — | Free with in-app purchases |
| Size | 21 MB | 66 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Isha Technohub](https://appshunter.io/developer/1214318485) | [Walter IA Inc.](https://appshunter.io/developer/1868383085) |

## What reviewers say

### PAYFIN ATOM

[App page](https://appshunter.io/ios/app/payfin-atom/id1454233573)

**Features:** macOS Compatibility

**In-app purchases:** none


### Walter Writes

[App page](https://appshunter.io/ios/app/walter-writes-ai-humanizer/id6757705138)

This app transforms AI-generated text into natural, human-sounding content and detects AI writing. It offers multiple rewrite modes and supports over 80 languages, making your AI-assisted writing sound authentic.

**Highlights:** AI text humanization, AI writing detection, Multiple rewrite modes, Supports 80+ languages, History tracking

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Starter Plan (Monthly) | $12.00 | per month |
| Pro Plan (Monthly) | $23.00 | per month |
| Elite Monthly | $47.00 | per month |
| Starter Plan (Yearly) | $96.00 | per year |
| Pro Plan (Yearly) | $155.99 | per year |
| Elite Yearly | $314.99 | per year |


## Frequently asked questions

### Is PAYFIN ATOM free?

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

### Is Walter Writes free?

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

### Do PAYFIN ATOM or Walter Writes have ads?

Neither PAYFIN ATOM nor Walter Writes shows ads.

### Which is updated more often, PAYFIN ATOM or Walter Writes?

PAYFIN ATOM ships an update every 7 months, and Walter Writes fortnightly. Most recently, PAYFIN ATOM was updated on October 18, 2026 and Walter Writes on October 15, 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.*