# Zero vs Postwego

The clearest difference is in-app purchases: Zero at none against Postwego's 1. Postwego's advantage is iOS requirement (15.6 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

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

Zero ships an update monthly, Postwego every 3 weeks. The most recent releases landed on October 17, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Zero | Postwego |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/zero-email-for-attorneys/id1216474378/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 207 MB | 83 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Aderant Holdings Inc.](https://appshunter.io/developer/896510525) | [Postwego](https://appshunter.io/developer/1886034863) |

## What reviewers say

### Zero

[App page](https://appshunter.io/ios/app/zero-email-for-attorneys/id1216474378)

This email client is designed for legal professionals to streamline their workflow and increase billable hours. It offers features like predictive filing, inbox sorting, recipient verification, and automatic time tracking for client communications, all while adhering to strict security standards.

**Highlights:** Predictive message filing, Inbox sorting by importance/sender, Wrong recipient warnings, Automatic time tracking, On-device AI processing, Strict security standards

**Features:** macOS Compatibility

**In-app purchases:** none


### Postwego

[App page](https://appshunter.io/ios/app/postwego/id6760741719)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| StarterPack | $9.99 | one-time |


## Frequently asked questions

### Is Zero free?

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

### Is Postwego free?

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

### Do Zero or Postwego have ads?

Neither Zero nor Postwego shows ads.

### Which is updated more often, Zero or Postwego?

Zero ships an update monthly, and Postwego every 3 weeks. Most recently, Zero was updated on October 17, 2026 and Postwego on October 6, 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.*