# Stars Units Sizes Objects > Compare sizes of objects in the universe from Planck length to observable universe. (iPhone/iPad app by Mudarmeen Munlin.) - Source: https://appshunter.io/ios/app/stars-units-sizes-objects/id1576148571 (this page in markdown: same URL + `.md`) - Developer: [Mudarmeen Munlin](https://appshunter.io/developer/1348165664) - Category: Education, Travel - Price: Free - Rating: 4.20/5 from 5 App Store ratings · 5 written reviews indexed - Age rating: 4+ - Requires: iOS 11.0 · 124 MB - Languages: English - Released: 2021-07-13 - Data updated: 2026-08-02 - Monetization: ad-supported - User reviews in markdown: https://appshunter.io/ios/app/stars-units-sizes-objects/id1576148571/reviews.md ## What is Stars Units Sizes Objects? Size of the smallest to largest objects and stars. Compare the size of objects in the universe. Object images. Pinch/Zoom image. Pan/Move image. Rotate image. Double tap to reset an image. From the smallest to the largest one. From planck length to observable universe. From Yoctometre, Zeptometre, Attometre, Femtometre, Picometre, Nanometre, Micro, Millimetre, Centimetre, Metre, KiloMetre, Lightyear, Parsecs, Billion Lightyears to 93 Billion Lightyears. Size of objects, particles, atoms, cells, stars and galaxies. Get to know the stars. Get to know the spaces. get to know the universe. How small is this world. How big is the universe. And How great is the creator. How far is the star distance from earth. Two way 18 distance unit conversion. planck length, yoctometer, zeptometer, attometer, femtometer, picometre, nanometre, micrometre, Millimeter, Centimeter, Meter, Kilometer, Inch, Foot, Mile, Astronomical, Lightyear, Parsecs. Perform auto conversion when picker is changed. Share conversion result. Reset unit convertor. ## Key features - Compare object sizes - View object images - Pinch/Zoom and Pan images - Unit conversion for distances - Explore scales from Planck length to observable universe - Learn about stars and galaxies ## Recent user reviews (5 of 5) All indexed reviews: https://appshunter.io/ios/app/stars-units-sizes-objects/id1576148571/reviews.md ### 5/5 — Okay *2025-10-15, version 1.09* This is not bad ### 1/5 — Ads *2025-09-21* Add remove ads for 24h button ### 5/5 — Yay *2024-12-05* Yay ### 5/5 — What a great app *2023-12-28* It has no ads well you can see ### 5/5 — Nice *2022-01-01, version 1.0* Very good work well done ## Frequently asked questions about Stars Units Sizes Objects ### What is the learning methodology of Stars Units Sizes Objects? Stars Units Sizes Objects uses visual comparisons and unit conversions to help users understand the immense scale of the universe. It allows users to explore objects from the smallest particles to the largest cosmic structures, fostering a hands-on learning experience. ### How does Stars Units Sizes Objects track user progress? This app focuses on exploration rather than formal progress tracking. Users can revisit any object or scale at any time to reinforce their understanding of cosmic sizes and distances. ### Does Stars Units Sizes Objects offer certifications? Stars Units Sizes Objects is an educational tool for exploration and understanding, not a formal course provider. It does not offer certifications upon completion of any learning modules. ### What is the pricing for Stars Units Sizes Objects? Stars Units Sizes Objects is available for free. It is supported by advertisements, allowing users to access all its features without any upfront cost. ### Does Stars Units Sizes Objects have ads? Yes, Stars Units Sizes Objects contains advertisements. These ads help support the development and maintenance of the app, allowing it to remain free for users. ### On which devices can I use Stars Units Sizes Objects? Stars Units Sizes Objects is compatible with iPhones, iPads, and iPods. It is designed to provide an engaging experience across Apple's mobile device ecosystem. ### How often is Stars Units Sizes Objects updated? The latest version of Stars Units Sizes Objects is 1.10, last updated on October 24, 2025. Updates typically include improvements and new content to enhance the user experience. ### What is the age rating for Stars Units Sizes Objects? Stars Units Sizes Objects has an age rating of 4+. This indicates that the content is generally suitable for children aged four and above, with no mature themes. ## Version history (last 5 releases) ### 1.10 — 2025-10-24 add new stars: UY Scuti and Stephenson 2-18 improve user experiences. bugs fixed. ### 1.09 — 2024-08-25 improve user experiences. bugs fixed. ### 1.08 — 2024-02-27 fix image center. fix unit conversion picker. improved user experiences. various bugs fixed. ### 1.07 — 2023-10-25 improve user experiences. bugs fixed. ### 1.06 — 2022-12-27 improve user experiences. bugs fixed. ## Apps similar to Stars Units Sizes Objects | App | Rating | Price | Category | | --- | --- | --- | --- | | [PlanetenSpielundApp2b](https://appshunter.io/ios/app/planetenspielundapp2b/id1494749871) | 3.5 (2) | Free | Education | | [Pocket Planets](https://appshunter.io/ios/app/pocket-planets/id1496547610) | 4.5 (20) | Free | Education | | [Intergalactic Solar System](https://appshunter.io/ios/app/intergalactic-solar-system/id1505399254) | 4.0 (25) | Free | Education | | [Universe Size Comparison](https://appshunter.io/ios/app/universe-size-comparison/id1473946290) | 3.1 (24) | $1.99 | Education | | [Atlas of Moons](https://appshunter.io/ios/app/atlas-of-moons/id1520266563) | 4.5 (25) | Free | Education | | [Planet Fun](https://appshunter.io/ios/app/planet-fun/id1525941640) | 4.8 (8) | Free | Education | ## More apps by Mudarmeen Munlin - [Pathum FDA](https://appshunter.io/ios/app/pathum-fda/id1348165665) - [Muslim Daily Thai](https://appshunter.io/ios/app/muslim-daily-thai/id1348174891) - [Muslim Daily Life](https://appshunter.io/ios/app/muslim-daily-life/id1349209246) - [Universe Object Star Magnitude](https://appshunter.io/ios/app/universe-object-star-magnitude/id1401988615) - [Distance Routes Navigation](https://appshunter.io/ios/app/distance-routes-navigation/id1436029579) - [Magic Infinite Dictionary](https://appshunter.io/ios/app/magic-infinite-dictionary/id1436160268) All apps by Mudarmeen Munlin: https://appshunter.io/developer/1348165664 ## Related topics [scale of the universe](https://appshunter.io/ios/topics/scale-of-the-universe) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-02.*