Comparison

Who's in Space? vs Weight Tracker

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

Head to head
About

Who's in Space?

Discover the current number of astronauts in orbit and their locations. Tap on an astronaut's name to access more detailed information about their mission.

Highlights
  • Real-time astronaut count
  • Astronaut location tracking
  • Detailed astronaut information
  • Data from Open Notify Astros API
  • User-friendly interface
Features
Read full description

Ever wondered who's in space? Quickly find out how many astronauts are in space and where they are during their time above Earth. Want to learn more? Simply tap an astronaut's name! Data provided by the Open Notify Astros API under the Creative Commons Attribution 3.0 Unported License (http://creativecommons.org/licenses/by/3.0/legalcode). Icon provided by Icons8 under the Attribution-NoDerivs 3.0 Unported License (https://creativecommons.org/licenses/by-nd/3.0/legalcode).

About

Weight Tracker

Track your weight loss progress with moving averages and smart forecasting. Stay motivated with milestones, customize your dashboard, and secure your data with FaceID or passcode lock. Syncs across Apple devices and integrates with Apple Health.

Highlights
  • Moving average tracking
  • Smart forecasting
  • Milestone rings
  • Customizable dashboard
  • FaceID/Passcode lock
  • iCloud sync
  • Apple Health integration
Features
Read full description

Weight Loss Tracker! Use moving averages to cut through daily noise and see real progress. Keep your data private, get clear predictions for your goal, and stay in sync across iPhone, iPad, and Mac. Features: Moving average BMI monitor Milestones Smart forecasting Sync with iCloud between iPhone, iPad, and Mac FaceID or passcode lock Sync with Apple Health * Smart Trends: View moving averages to understand your true weight loss progress. * Predictive Forecasting: Visualize the future with date estimates for your target weight. * Milestone Rings: Stay motivated by breaking large goals into achievable, smaller segments. * Complete Customization: Personalize your experience with accent colors, full-color themes, and a modular dashboard. * Privacy & Security: Secure your data with FaceID/Passcode and private iCloud syncing. * HealthKit Integration: Automatically sync weights to and from the Apple Health app. * Data Portability: Export your full history to CSV or import data from other sources in seconds. * Advanced Metrics: Track your Weekly Rate, Total Change, and BMI with one glance. Weight loss tracking helps you ignore the daily scale "noise" and focus on the habits that matter. Stop guessing and start seeing exactly where you're headed. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Who's in Space?4 screens
Weight Tracker4 screens

Verdict

The call

The clearest difference is rating: Weight Tracker at 4.5 against Who's in Space?'s 3.0. Weight Tracker also leads on update cadence (every 6 days vs every 4 months). Who's in Space?'s advantage is in-app purchases (none vs 5) and iOS requirement (13.0 vs 18.0). On price, ratings volume, 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. Weight Tracker sells 5 in-app purchases, starting at $1.99 per month. Who's in Space? asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Weight Tracker holds the better App Store score, 4.5 against 3.0. Both are backed by a comparable volume of ratings — 2 and 4 respectively.

UpkeepUpdate frequency

Who's in Space? ships an update every 4 months, Weight Tracker every 6 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard5 real differences · 5 level
Who's in Space? versus Weight Tracker: the parameters behind the verdict, then further details
ParameterWho's in Space?Weight Tracker
PriceFreeFree
Rating3.0 (2 ratings)4.5 (4 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings24 — better
Update frequencyEvery 4 monthsEvery 6 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS13.0 — better18.0
Further details — not scored
Size0 MB5 MB
Age rating4+4+
DeveloperCameron BernhardtMelissa Chan

In-app purchases

None

Who's in Space?

No in-app purchases

5 purchases

Weight Tracker

Subscriptions2
  • Monthly Subscription$1.991 Month
  • Yearly Subscription7 Days trial$11.991 Year
One-time3
  • Monthly Premium$1.99
  • Yearly Premium$9.99
  • Lifetime Premium$39.99

Questions

Is Who's in Space? free?
Who's in Space? is free to download, with no in-app purchases.
Is Weight Tracker free?
Weight Tracker is free to download, with in-app purchases available.
Which has better reviews, Who's in Space? or Weight Tracker?
Weight Tracker is rated higher. Who's in Space? averages 3.0 out of 5 from 2 ratings, while Weight Tracker averages 4.5 from 4 ratings.
Do Who's in Space? or Weight Tracker have ads?
Neither Who's in Space? nor Weight Tracker shows ads.
Which is updated more often, Who's in Space? or Weight Tracker?
Who's in Space? ships an update every 4 months, and Weight Tracker every 6 days. Most recently, Who's in Space? was updated on October 24, 2026 and Weight Tracker on October 25, 2026.

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