# Centerline Scheduler vs Peering

The clearest difference is in-app purchases: Centerline Scheduler at none against Peering's 6. Centerline Scheduler also leads on update cadence (every 2 days vs every 4 days). Peering's advantage is device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Peering sells 6 in-app purchases, starting at $1.99 per month. Centerline Scheduler asks for nothing beyond the download.

Centerline Scheduler ships an update every 2 days, Peering every 4 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | Centerline Scheduler | Peering |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/centerline-scheduler/id6800510465/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 4 days |
| Monetization | Free | — |
| Size | 16 MB | 45 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Great Scott! Interactive](https://appshunter.io/developer/553560593) | [Damian Derlecki](https://appshunter.io/developer/1793745124) |

## What reviewers say

### Centerline Scheduler

[App page](https://appshunter.io/ios/app/centerline-scheduler/id6800510465)

This app provides pilots with a modern, mobile-first interface for managing flight school and flying club reservations. Book, cancel, and log flights directly from your phone, with features like real-time aircraft alerts and Google Calendar sync.

**Highlights:** Book, cancel, preflight, and postflight logging, Dashboard with bookings, currency, and balance, Day/Week schedule view with fleet details, One-tap booking for available slots, Aircraft change and grounding alerts, Instructor-student pairing and currency sharing, Google Calendar synchronization

**In-app purchases:** none


### Peering

[App page](https://appshunter.io/ios/app/peering-remote-desktop-and-ssh/id6812658408)

**Features:** Apple Watch app

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Relay | $1.99 | per month |
| Relay Plus | $3.99 | per month |
| Peering Pro | $6.99 | per month |
| Relay (Yearly) | $14.99 | per year |
| Relay Plus (Yearly) | $29.99 | per year |
| Peering Pro (Yearly) | $49.99 | per year |


## Frequently asked questions

### Is Centerline Scheduler free?

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

### Is Peering free?

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

### Do Centerline Scheduler or Peering have ads?

Neither Centerline Scheduler nor Peering shows ads.

### Which is updated more often, Centerline Scheduler or Peering?

Centerline Scheduler ships an update every 2 days, and Peering every 4 days. Most recently, Centerline Scheduler was updated on October 31, 2026 and Peering on October 31, 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.*