Comparison

AR Projection Simulator vs Just One

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

Head to head
About

AR Projection Simulator

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AR Projection Simulator is an app that allows you to simulate the installation of a projector using AR. You can visualize the relationship between the projector installation position and the projection size, and explore the possibilities of spatial effects created by Z-projectors. It can be used for preliminary design and creating proposal images for customers. 【Features】 1. Reproduces the various installation methods that are the greatest feature of the Z Series. You can simply select from a list to display the abundant installation methods achieved through two-axial rotatable lens and vertical/horizontal installation. 2. Easily simulate the demo of overhead installation, which is hard to do with actual equipment. You can easily visualize the hanging height required to obtain the desired projection size. It also allows simulation of the height of overhead mounting brackets or stands. 3. Compare various projectors and installation positions/projection ranges. By entering the specifications, you can register and simulate various models. 【Supported OS】 iOS 16.6 or later iPadOS 16.6 or later 【Supported Devices】 iPhone SE (2nd generation), iPhone 8 or later iPad Pro 12.9-inch (1st generation) or later iPad Pro 11-inch (1st generation) or later iPad Pro 10.5-inch iPad Pro 9.7-inch iPad (5th generation) or later iPad mini (5th generation) or later iPad Air (3rd generation) or later For simulations in environments with less features, such as plain walls, we recommend using a device with LiDAR. 【Notes】 This simulator is a convenient tool for estimation only. It is not intended to provide exact measurements. There may be a few % differences from the actual measurements. Depending on the pose of the projector, shadows may occur due to the main unit being between the lens and the screen. For details, please check the projection simulator on our official website. https://optics.fujifilm.com/projector/simulator/

About

Just One

Features
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"Just One" is a beautifully crafted companion designed to help you understand and control your smoking habits without the guilt or complexity of traditional trackers. Designed with a philosophy of "Honest Reflection," Just One moves beyond simple counting. It analyzes your daily patterns, assigns a performance grade (S to D), and helps you visualize not just how much you smoke, but how much you save—both in money and health impact. Key Features: Premium Experience: A satisfying "Liquid Glass" interface with immersive haptic feedback that makes every interaction feel real. Privacy First: Your data belongs to you. Built with SwiftData and CloudKit, everything stays on your device or your private iCloud. No servers, no tracking, no accounts. Smart Grading: Receive a daily "Smoking Grade" (S, A, B, C, D) based on your goals. It’s like a credit score for your lung health. Dynamic Insights: See real-time calculations of money spent and tar/nicotine intake. Intelligent Notifications: Forget generic reminders. Just One analyzes yesterday’s data to send you personalized encouragement or gentle warnings. Weekly Reports: Detailed breakdowns of your weekly progress to help you spot trends and cut back effectively. Take control, one tap at a time.

Screenshots

AR Projection Simulator3 screens
Just One4 screens

Verdict

The call

AR Projection Simulator and Just One are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Neither carries in-app purchases, so what you see is what you pay.

ScorecardNo meaningful differences
AR Projection Simulator versus Just One: the parameters behind the verdict, then further details
ParameterAR Projection SimulatorJust One
PriceFreeFree
Update frequencyEvery 2 months—
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad — betteriPhone
Requires iOS16.6 — better17.6
Further details — not scored
Size228 MB12 MB
Age rating4+17+
DeveloperFUJIFILM Corporation子威 毛

In-app purchases

None

AR Projection Simulator

No in-app purchases

None

Just One

No in-app purchases

Questions

Is AR Projection Simulator free?
AR Projection Simulator is free to download, with no in-app purchases.
Is Just One free?
Just One is free to download, with no in-app purchases.
Do AR Projection Simulator or Just One have ads?
Neither AR Projection Simulator nor Just One shows ads.

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