myAir & DreamMapper Limitations: Why Your CPAP App Isn't Enough

If you only ever look at the app that came with your CPAP, you're seeing a tiny, polished slice of what your machine actually recorded every night. ResMed's myAir gives you a friendly score; Philips' DreamMapper gave DreamStation users a similar at-a-glance summary — until Philips shut it down in January 2026. Both were designed to encourage compliance, not to help you genuinely understand your therapy. This guide walks through exactly what these manufacturer apps leave out, why that gap matters, and what a fuller, plain-language alternative looks like.

What myAir actually shows (and doesn't)

ResMed's myAir is the companion app for AirSense and AirCurve machines. Each morning it gives you a single number — a myAir score from 0 to 100 — built from a handful of inputs:

• Usage hours (how long you wore the mask)
• Mask seal (shown as a simple icon, not a chart)
• Mask on/off events (how often you took it off)
• Events per hour — your overall AHI (apnea-hypopnea index, the count of breathing pauses per hour)

That's genuinely useful for one thing: knowing whether you used the machine. But notice what's missing. The myAir score is weighted heavily toward usage hours, which means you can wear the mask faithfully and post a near-perfect score even on a night where your therapy isn't actually working well. It's entirely possible to score close to 100 with an AHI near 4.9 — technically "under 5," but with no insight into what kind of events those were.

Just as important, ResMed has never published the exact scoring formula. You're handed a number with no way to audit how it was calculated or what would move it.

Here's what myAir does not show you:

• No event-type breakdown — it won't tell you whether your events were obstructive, central (clear-airway), or hypopneas. Those distinctions matter clinically.
• No leak chart — just a pass/fail seal icon. You never see your actual leak rate over the night or whether a large leak invalidated your numbers.
• No pressure data — no median or 95th-percentile pressure trend.
• No flow limitation — the subtle airway-narrowing that can leave you tired even at a "good" AHI is completely absent.

We go deeper on the score itself in How to Read Your ResMed myAir Score (and What It Hides), and on the data your card actually holds in ResMed AirSense 11 Data: What Your SD Card Holds (and myAir Hides).

DreamMapper's January 2026 shutdown

If you're a Philips Respironics user, the situation changed sharply this year. Philips shut down DreamMapper in January 2026, ending the companion app that DreamStation and DreamStation 2 owners relied on for their daily summaries.

DreamMapper offered a comparable experience to myAir — therapy hours, a mask-fit indicator, and an AHI summary — with the same core limitation: a compliance-oriented dashboard, not a real analysis tool. Now even that is gone, and many DreamStation 2 owners are left without any manufacturer app at all.

That hurts more for the DreamStation 2 than for almost any other machine, because of a second wrinkle: the DreamStation 2 stores its SD-card data in an encrypted format that OSCAR and most third-party tools cannot read. So the obvious fallback — "I'll just pop the SD card into free desktop software" — doesn't work the way it does for older Philips and ResMed devices. We cover that specific problem in Philips DreamStation 2: Why Its Data Is Encrypted and Your Options.

The practical upshot: a large group of Philips users went from "limited app" to "no app" overnight, and the usual community workaround is blocked by encryption.

The gaps — no event types, no waveforms, no flow limitation

The single biggest weakness shared by myAir and DreamMapper is that they flatten everything into one AHI number and hide the detail underneath. Three categories of data go missing, and each one can change how you'd interpret your night.

Event types

AHI is a total. It doesn't tell you whether your remaining events are:

• Obstructive apneas — the airway physically collapses; this is what CPAP is designed to splint open.
• Central (clear-airway) apneas — your brain briefly stops sending the signal to breathe. CPAP reliably treats obstructive events, but it does not directly correct the unstable breathing drive behind central events.
• Hypopneas — partial reductions in airflow.

This matters because the right response depends on the type. A rising count of central events on CPAP can signal treatment-emergent central sleep apnea (TECSA), sometimes called complex sleep apnea. It appears in roughly 5–15% of PAP titrations and often resolves on its own within weeks to a few months of continued CPAP (reported spontaneous resolution around 60–80%). Persistent cases warrant a clinician's evaluation — possibly BiPAP or ASV — but the answer is never to raise your own pressure to chase central events, since higher pressure doesn't fix them and can sometimes provoke them. A single AHI number can't tell these stories apart; see Central Apneas Showing Up on CPAP: Treatment-Emergent CSA Explained and CPAP Event Types Decoded.

Leak data

Leak is the trust-building metric the apps gloss over. ResMed reports excess leak, with a commonly cited threshold of 24 L/min at the 95th percentile; Philips reports total leak, which uses a different baseline — so the two numbers aren't directly comparable. The reason this is load-bearing: a large leak can invalidate or under-report your AHI, because air escaping the mask blunts the machine's ability to detect events. A seal icon that says "good" tells you nothing about whether a 2 a.m. mouth leak quietly corrupted the night's numbers. CPAP Leak Rate: What's Acceptable and How to Fix High Leaks breaks this down.

Waveforms and flow limitation

Neither app shows the flow rate waveform — the breath-by-breath airflow trace that reveals the shape of your breathing — or flow limitation, the subtle airway narrowing that doesn't count as an event but can still fragment sleep. This is often the missing explanation for the frustrating "good numbers, still tired" experience. See CPAP Flow Limitation: The Hidden Metric Beyond AHI and Still Tired on CPAP With Good Numbers?.

One more thing worth keeping in mind: device-reported AHI is an estimate. Your machine has no EEG to score arousals the way a sleep lab does, so its AHI can differ from a lab-scored AHI. And a single night is noise — what actually matters is the trend over weeks, which compliance dashboards aren't built to surface.

Single-vendor lock-in

There's a structural problem beyond the missing metrics: manufacturer apps only speak their own brand's language.

• myAir works with ResMed machines only.
• DreamMapper worked with Philips machines only — and is now gone.

If you switch brands — say, from a recalled Philips DreamStation to a ResMed AirSense, a very common move during the Philips recall years — your therapy history doesn't follow you. Your old app holds one chapter, your new app starts a fresh one, and there's no single timeline showing how your AHI, leaks, and pressure evolved across the transition. Owners of less-common machines like Löwenstein prisma devices often have no friendly app at all.

This is exactly the wrong design for a chronic condition you may manage for decades. We cover the brand-switch problem directly in Switching CPAP Brands? Keep Your Data History Across Vendors.

A fuller, multi-vendor, plain-language alternative

Once you've decided you want more than a compliance score, you have a few options, and they sit at different points on the trade-off curve.

• OSCAR — the free desktop standard. It exposes everything: event types, waveforms, leaks, pressure. The catch is that it does no automatic scoring or interpretation (you read the charts yourself), it doesn't run on Chromebooks, and it can't read encrypted DreamStation 2 data. See the OSCAR CPAP Software Guide.
• SleepHQ — a cloud platform that leans toward ResMed workflows, with a paid Pro tier for the deeper features.
• AirwayLab — browser-based, but ResMed only.
• SomniCharts — cloud-based, multi-vendor, and built to explain rather than just display.

SomniCharts picks up exactly where myAir stops and replaces the now-dead DreamMapper. You upload your SD-card data and it imports ResMed, Philips Respironics (including the encrypted DreamStation 2), and Löwenstein prisma machines, then explains your night in plain language automatically — event types broken out, leak rate against the right threshold, pressure trends, the flow rate waveform, and flow limitation, all in one place across brands. Because it's cloud-based, your history follows you when you switch machines instead of resetting. Its built-in assistant, SomniDoc, turns those charts into plain-English observations and trends over weeks — so you walk into your next appointment with context, not just a score.

For a side-by-side of the tools, see OSCAR Alternatives: Best Web-Based CPAP Analysis Tools (2026), SomniCharts vs SleepHQ, and the machine-by-machine OSCAR vs SleepHQ vs SomniCharts support matrix. This whole topic lives inside our CPAP Data Tools & Apps pillar.

The goal of looking past the score isn't to play doctor — it's to use your own data to have a more informed conversation with your provider. A residual AHI below 5 events per hour is the widely used benchmark for effective therapy (the AASM defines an "optimal" titration as bringing the AHI under 5); some clinicians aim lower when it's comfortably achievable, but targets are individualized with your provider. The richer your view of why your numbers look the way they do, the better that conversation goes.

Frequently asked questions

Is DreamMapper still available in 2026?

No. Philips shut down DreamMapper in January 2026. DreamStation and DreamStation 2 users no longer have access to it, and the DreamStation 2's encrypted SD-card data can't be read by OSCAR or most third-party tools — though it can be imported and explained by SomniCharts.

Why is my myAir score high when I still feel tired?

The myAir score is weighted heavily toward usage hours, so faithful mask-wearing alone can produce a near-perfect score. It doesn't reflect event types, leak detail, or flow limitation — the subtle airway narrowing that can leave you unrefreshed even at a low AHI. See Still Tired on CPAP With Good Numbers?.

What's the best CPAP app if I've switched brands?

Manufacturer apps are single-vendor: myAir is ResMed-only and DreamMapper (Philips-only) is gone. A multi-vendor cloud tool keeps one continuous history across machines. SomniCharts imports ResMed, Philips (including DreamStation 2), and Löwenstein prisma data; more on the brand-switch problem in Switching CPAP Brands? Keep Your Data History.

Can OSCAR read my DreamStation 2 data?

No — DreamStation 2 stores its data in an encrypted format OSCAR can't decode. OSCAR works well for older Philips and most ResMed machines, but the DS2 needs a tool that supports its encryption.