Comparison

Centerline Scheduler vs Peering

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Centerline Scheduler

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
Read full description

Centerline is a free, independent mobile app for pilots at flight schools and flying clubs that use ScheduleMaster. Sign in with your existing club credentials and run your flying from your phone. Book, cancel, preflight, and postflight on the ramp, in the plane, or between meetings. PLAN AND BOOK - Dashboard: active bookings, upcoming reservations, past flights, currency at a glance, and your running statement balance - Day and week schedule: the entire club fleet in one view, tap for detail, pinch to zoom the ribbon, drag to shift the window - One-tap booking: pick an empty slot on any aircraft's ribbon, fill four fields, tap Book - Linked accounts: pilots at multiple clubs sign in once and switch without retyping credentials FLY - Preflight and postflight: Hobbs and tach entry, no-flight and maintenance modes, receipt items - ForeFlight export: send completed flights straight to your logbook - Live Activities: your reservation, the weather, and squawk status on your lock screen - Aircraft alerts: get a push if a plane you booked changes rate, picks up a squawk, or gets grounded before you fly SHARE - Instructor and student links: CFIs pair with students to see upcoming lessons and share currency at a glance - Rideshare: offer a right seat on a cross country you are planning, or ride along on someone else's - Google Calendar sync: every booking mirrors to your personal calendar, optional, connect once in Settings Dark mode, dynamic type, and safe-area aware throughout. Centerline is an independent project and is not affiliated with or endorsed by ScheduleMaster or any club. Your club account stays with your club, and Centerline never stores your password. Requires an active account at a club that uses ScheduleMaster.

About

Peering

Features
Read full description

Your Mac, in your pocket. Peering connects your iPhone to your Mac, whether the two are on the same network or not. Tap to click, type from the keyboard at your desk or the one on screen, and use your Mac from wherever you are No account. Two devices confirm a six-digit code the first time and keep their own keys. Nothing is held on a server. THE PICTURE See any display the Mac is attached to, or pick a single app or one window. Switch between your Spaces by tapping the one you want. The bitrate follows the connection, so a weak link degrades instead of stalling. When the networks allow it, the session travels straight between the two devices without touching the relay. When it goes around, it is encrypted end-to-end and the relay cannot read it. DRIVING IT Touch controls the Mac like a trackpad, with a relative-pointer mode for precision and pinch-to-zoom for anything too small to tap. A physical keyboard at the desk types directly into the Mac, with the modifier keys it expects. Privacy mode dims the Mac's own displays while you work. TERMINALS AND FILES Open a terminal on your Mac or any SSH server you have saved. The file browser walks folder trees on either machine, edits text files in place, shows images as images, and runs scripts with the output where you can see it. FREE TO START Connecting over your own network is unlimited on every plan. The relay, which finds your Mac when the two devices are on different networks, is metered on the free plan. Relay, Relay Plus and Pro subscriptions remove that limit and add: sound from the Mac, Picture in Picture, file transfer both ways up to 2 GB, clipboard history, several shells open at once, macros and snippets, and the sharpest picture over the relay. Every paid plan pairs with every Mac you own. Free pairs with one. Subscriptions renew automatically until cancelled. Cancel any time in your App Store settings. Questions or suggestions: support@getpeering.app Privacy Policy: https://getpeering.app/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Peering Terms of Use: https://getpeering.app/terms

Screenshots

Centerline Scheduler4 screens
Peering4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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

Scorecard3 real differences · 6 level
Centerline Scheduler versus Peering: the parameters behind the verdict, then further details
ParameterCenterline SchedulerPeering
PriceFreeFree
Rating5.0 (4 ratings) — better—
Number of ratings4 — better—
Update frequencyEvery 2 days — betterEvery 4 days
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhoneiPhone, iPad, Apple Watch — better
Requires iOS17.0 — better18.0
Further details — not scored
Size16 MB45 MB
Age rating4+4+
DeveloperGreat Scott! InteractiveDamian Derlecki

In-app purchases

None

Centerline Scheduler

No in-app purchases

6 purchases

Peering

Subscriptions6
  • Relay$1.991 Month
  • Relay Plus$3.991 Month
  • Peering Pro$6.991 Month
Show 3 more
  • Relay (Yearly)$14.991 Year
  • Relay Plus (Yearly)$29.991 Year
  • Peering Pro (Yearly)$49.991 Year

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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