Comparison

TBPS Premium vs GhostLab

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

Head to head
About

TBPS Premium

Features
Read full description

TBPS is a versatile three-body problem simulator that allows you to explore the fascinating and mysterious dynamics of three-body phenomena. Whether you're an observer marveling at the unpredictable motions of celestial objects or a creator designing unique universes by tweaking various parameters, TBPS offers a compelling experience. Learn more about the three-body problem in mathematics and physics by visiting https://en.wikipedia.org/wiki/Three-body_problem or explore its depiction in literature through the acclaimed novel The Three-Body Problem by Liu Cixin at https://en.wikipedia.org/wiki/The_Three-Body_Problem_(novel).

About

GhostLab

This app uses your device's LiDAR scanner to create a 3D map of your surroundings in real-time. Visualize rooms with colored dots representing distance, capture stills and video, and explore your scanned environment.

Highlights
  • Real-time 3D room mapping
  • LiDAR-based distance measurement
  • Wireframe and dot visualization modes
  • Color-coded distance display
  • Freeze scan and explore
  • In-app photo and video recording
  • Save and share scans
Features
Read full description

This app needs the LiDAR scanner built into iPhone Pro and iPad Pro models. Your iPhone's LiDAR scanner fires a grid of infrared laser dots and times how long each one takes to come back. Spirit Detector draws every one of those measurements where it was taken, so sweeping a dark room builds the room out of light. Walk around and the picture fills in. Walls, furniture, doorways and anything standing in the room arrive as points in mid-air, coloured by how far away they are. Near is warm, far is cold. Nothing is guessed and nothing is drawn from the camera picture: every dot is a distance the scanner actually measured. WHAT YOU CAN DO Sweep a room and watch it build, live, at sixty frames a second. Switch between a drifting sheet of dots and the room as a wire model. Colour by distance with three looks. Freeze the map and walk around what you have captured. Take stills and record video straight to the in-app Library. Save anything to Photos or share it anywhere. REQUIRES A LiDAR SCANNER This app needs the LiDAR scanner built into iPhone Pro and iPad Pro models. There is no software substitute for the sensor, so on other devices it will tell you so and do nothing else. Check your model before buying. FREE FOR 48 HOURS The whole app is free for 48 hours from your first scan. After that, one payment of $4.99 keeps it for good. No subscription, no advertising, and nothing charged again. Nothing here detects, measures or infers anything paranormal, and it does not claim to.

Screenshots

TBPS Premium4 screens
GhostLab4 screens

Verdict

The call

The clearest difference is price: GhostLab at Free against TBPS Premium's $2.99. TBPS Premium's advantage is in-app purchases (none vs 3) and iOS requirement (12.0 vs 17.0). On update cadence, 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

GhostLab is free to download; TBPS Premium costs $2.99 up front. GhostLab sells 3 one-off in-app purchases. TBPS Premium asks for nothing beyond the download.

UpkeepUpdate frequency

TBPS Premium ships an update weekly, GhostLab every 3 days. The most recent releases landed on October 18, 2026 and October 26, 2026 respectively.

Scorecard3 real differences · 6 level
TBPS Premium versus GhostLab: the parameters behind the verdict, then further details
ParameterTBPS PremiumGhostLab
Price$2.99Free — better
Rating—3.7 (3 ratings) — better
Number of ratings—3 — better
Update frequencyWeeklyEvery 3 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Paid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better17.0
Further details — not scored
Size32 MB7 MB
Age rating4+9+
DeveloperWu BinJack Miller

In-app purchases

None

TBPS Premium

No in-app purchases

3 purchases

GhostLab

One-time3
  • 3D Map & Clips$4.99
  • Spirit Detector$4.99
  • Spirit Detector Pro$9.99

Questions

Is TBPS Premium free?
TBPS Premium costs $2.99, with no in-app purchases.
Is GhostLab free?
GhostLab is free to download, with in-app purchases available.
Do TBPS Premium or GhostLab have ads?
Neither TBPS Premium nor GhostLab shows ads.
Which is updated more often, TBPS Premium or GhostLab?
TBPS Premium ships an update weekly, and GhostLab every 3 days. Most recently, TBPS Premium was updated on October 18, 2026 and GhostLab on October 26, 2026.

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