Comparison

SleepRec vs GhostDelta

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

Head to head
About

SleepRec

Record and analyze nighttime sounds to understand your sleep patterns. Review past recordings, view sound intensity statistics, and track factors affecting your sleep from a smartwatch.

Highlights
  • Record nighttime sounds
  • Listen to past recordings
  • Analyze sound intensity statistics
  • View decibel level graphs
  • Track sleep-affecting factors from smartwatch
  • View sleep factor correlations
Features
Read full description

SleepRec allows you to record the sounds that are emitted during the night while you are sleeping. It is possible to listen to the recordings of the previous days, in order to also check the intensity of the recorded sound. In the statistics menu, by choosing a date you can view a graph that indicates the maximum level of recorded decibels (also with the appropriate description at the top of the vertical bar), during a certain time (specific description at the bottom of the vertical bar) There is also the possibility, from a smartwatch, to add the factors (drinking water, eating, physical activity, working hours) that can affect sleep and then view them from the app.

About

GhostDelta

Features
Read full description

GhostDelta is a precision Apple Watch GPS recorder for outdoor sport: mountain biking, skiing and snowboarding, hiking, running, motorcycling, karting, boating and more. Record on your wrist. Analyse on your iPhone. Race yourself. Pick any stretch of trail, road or track and GhostDelta times every run against your own best, live and sector by sector, with the gap on your wrist while you're still moving. Ride a loop and every lap is timed the moment you cross the line. BEAT YOUR BEST Every run is timed automatically against your personal best, split into sectors and sub-sectors, with a live gap that tells you whether you're up or down before you reach the finish. Mark the section once as a Stage (a descent, a climb, a favourite run of corners) from any recording on your iPhone, or on the go: press the Action Button to start and stop a new Stage mid-ride. From then on GhostDelta spots the start by itself, and your Stage Book keeps every record, including runs you did before you created it. LAP TIMING Every lap is timed and ranked, with sector splits and a live gap to your best while you're still on track. Save any closed loop as a Circuit: a kart track, a lap of the park, a training loop. GhostDelta can even spot a loop by itself. Session bests and all-time bests are tracked automatically. FOLLOW ANY ROUTE Head for tomorrow's campsite without splitting your GPX. Import a route, trim it to the start and finish you want, and drop named waypoints along it: a campsite, a lunch stop, a summit. On your wrist, see the distance, climb and descent to the waypoint you choose or to the finish, the elevation profile ahead, and the next climb with its gain and gradient. Press the Action Button for a timeline of every waypoint ahead and behind you: tap one ahead to navigate to it, or one behind to see how far you've come since. Off-route warnings bring you back. ON YOUR WRIST • Live metrics in layouts you design: speed, heart rate and zones, altitude, ascent, gradient, pace and more • Automatic lap timing with live gaps to your best • Distinct haptics for laps, stage entries and personal bests, so your eyes stay on the trail • Always-On display support and Action Button start ON YOUR IPHONE • Full session history with maps, charts and weather • Replay any session on the map at up to 100× • Every personal best at a glance, broken down by sector • Import GPX routes, build Stages and waypoints, export everything • Bring in recordings from other GPS devices as GPX files • Group sessions into events, tag and filter ACTIVITIES Mountain Biking, E-Mountain Biking, Cycling, E-Cycling, Downhill Skiing, Snowboarding, Cross-Country Skiing, Running, Trail Running, Walking, Hiking, Climbing, Surfing, Sailing, Rowing, Paddle Sports, Open Water Swimming, Karting, Motorsport, Motorcycling, Boating, Jet Ski, Snowmobile. If yours isn't on the list, create a custom activity with its own icon and settings, right on the Watch. YOUR DATA No account, no feed. Sessions are recorded and stored on your devices, and export to GPX any time. Apple Health sync is an option for each session: physical activities default on, and motor-assisted activities stay local unless you choose otherwise. FREE & PRO Your first 10 sessions are free, with every feature included. Go unlimited with a yearly subscription or a one-off lifetime purchase. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

SleepRec4 screens
GhostDelta4 screens

Verdict

The call

The clearest difference is in-app purchases: SleepRec at none against GhostDelta's 2. SleepRec also leads on iOS requirement (16.0 vs 18.0). GhostDelta's advantage is update cadence (weekly vs every 5 weeks). On price, ads and device support 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. GhostDelta sells 2 in-app purchases, starting at $2.99 per year. SleepRec asks for nothing beyond the download.

UpkeepUpdate frequency

SleepRec ships an update every 5 weeks, GhostDelta weekly. The most recent releases landed on October 16, 2026 and October 8, 2026 respectively.

Scorecard3 real differences · 7 level
SleepRec versus GhostDelta: the parameters behind the verdict, then further details
ParameterSleepRecGhostDelta
PriceFreeFree
Rating4.3 (120 ratings) — better—
Positive reviews67.2% of reviews—
Number of ratings120 — better—
Update frequencyEvery 5 weeksWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, Apple Watch — betteriPhone, Apple Watch
Requires iOS16.0 — better18.0
Further details — not scored
Size39 MB18 MB
Age rating4+4+
DeveloperGiovanni TrentaJaisah Webb

Bugs and requests

SleepRec

Reported bugs

6 issues
  • App randomly turns off
  • Audio playback not supported
  • Crashes when pressing 'list'
  • App turns off when left on to record
  • Does not record sounds
Show 1 more
  • Audio not supported on iOS 14

Requested features

5 requests
  • Ability to select multiple recordings to delete at once
  • Option to set a decibel threshold for recording
  • Spectrogram for better audio management
  • Improve UI
  • Add more add-ons and tweaks

GhostDelta

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

SleepRec

No in-app purchases

2 purchases

GhostDelta

Subscriptions1
  • GhostDelta - Yearly$2.991 Year
One-time1
  • Lifetime Access$7.99

Questions

Is SleepRec free?
SleepRec is free to download, with no in-app purchases.
Is GhostDelta free?
GhostDelta is free to download, with in-app purchases available.
Do SleepRec or GhostDelta have ads?
Neither SleepRec nor GhostDelta shows ads.
Which is updated more often, SleepRec or GhostDelta?
SleepRec ships an update every 5 weeks, and GhostDelta weekly. Most recently, SleepRec was updated on October 16, 2026 and GhostDelta on October 8, 2026.

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