# Preview App vs Runlow

The clearest difference is update cadence: Runlow at every 2 days against Preview App's every 13 months. Runlow also leads on chart position (#38 vs unranked) and device support (5 vs 2). Preview App's advantage is iOS requirement (15.6 vs 17.0). On price, ads and in-app purchases there is nothing between them.

Preview App costs $1.99 and Runlow $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Preview App ships an update every 13 months, Runlow every 2 days. The most recent releases landed on September 21, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Preview App | Runlow |
| --- | --- | --- |
| Price | $1.99 | $1.99 |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/runlow-ai-usage-meter/id6790868681/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 2 days** |
| Monetization | — | Paid |
| Best chart rank | — | **#38** |
| Size | 8 MB | 17 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac, Apple Watch, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [Cangmu Technology Co., Ltd](https://appshunter.io/developer/1736424342) | [LEON NELIO FIGUEIRA](https://appshunter.io/developer/6790868683) |

## What reviewers say

### Preview App

[App page](https://appshunter.io/ios/app/preview-app-store-simulator/id1626025800)

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

**In-app purchases:** none


### Runlow

[App page](https://appshunter.io/ios/app/runlow-ai-usage-meter/id6790868681)

**Currently charting:** #38 Top Paid · Developer Tools (US App Store)

Monitor your AI service token limits and spending across multiple providers in real-time. View usage at a glance with live activities, dynamic island integration, and customizable widgets. Stay informed with notifications before hitting limits.

**Highlights:** Real-time AI usage tracking, Live Activities and Dynamic Island integration, Home and Lock Screen widgets, Service status indicators, Customizable meters and notifications, Mac menu bar app, Private by design, no account needed

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is Preview App free?

Preview App costs $1.99, with no in-app purchases.

### Is Runlow free?

Runlow costs $1.99, with no in-app purchases.

### Do Preview App or Runlow have ads?

Neither Preview App nor Runlow shows ads.

### Which is updated more often, Preview App or Runlow?

Preview App ships an update every 13 months, and Runlow every 2 days. Most recently, Preview App was updated on September 21, 2026 and Runlow on September 25, 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.*