# Outbox vs Adapter™

The clearest difference is in-app purchases: Adapter™ at none against Outbox's 2. Adapter™ also leads on update cadence (every 5 days vs fortnightly). Outbox's advantage is ratings volume (11 vs 3). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. Outbox sells 2 in-app purchases, starting at $12.99 per month. Adapter™ asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for Outbox against 5.0 for Adapter™. Both are backed by a comparable volume of ratings — 11 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Outbox ships an update fortnightly, Adapter™ every 5 days. The most recent releases landed on October 24, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Outbox | Adapter™ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (11 ratings)](https://appshunter.io/ios/app/outbox-gmail-inbox-cleaner/id6503675090/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/adapter/id6741813949/reviews)** |
| Number of ratings | **11** | 3 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 5 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 42 MB | 33 MB |
| Requires iOS | 17.6 | 17.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Outbox LLC](https://appshunter.io/developer/1749915666) | [Adapter](https://appshunter.io/developer/1795750114) |

## What reviewers say

### Outbox

[App page](https://appshunter.io/ios/app/outbox-gmail-inbox-cleaner/id6503675090)

Effortlessly unsubscribe from unwanted emails and delete thousands of junk messages with a few taps. This app helps you reclaim storage space and focus on important communications by decluttering your inbox.

**Highlights:** Swipe to unsubscribe, Bulk unsubscribe, Delete junk emails, Reclaim storage space, Subscription sorting, Dark mode

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly $12.99 | $12.99 | per month |
| Outbox - Gmail Inbox Cleaner | $39.99 | per year |


### Adapter™

[App page](https://appshunter.io/ios/app/adapter/id6741813949)

This app acts as an intelligent conductor for your digital life, transforming personal data into a seamless experience. It proactively filters distractions, anticipates needs, and highlights what matters most, maximizing your time away from screens.

**Highlights:** Filters life's scattered data, Manages schedules and preferences, Integrates with daily apps, Builds secure knowledge of preferences, Archives important information, Delivers proactive reminders

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Outbox free?

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

### Is Adapter™ free?

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

### Which has better reviews, Outbox or Adapter™?

Adapter™ is rated higher. Outbox averages 4.9 out of 5 from 11 ratings, while Adapter™ averages 5.0 from 3 ratings.

### Do Outbox or Adapter™ have ads?

Neither Outbox nor Adapter™ shows ads.

### Which is updated more often, Outbox or Adapter™?

Outbox ships an update fortnightly, and Adapter™ every 5 days. Most recently, Outbox was updated on October 24, 2026 and Adapter™ on October 12, 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.*