Comparison

AST UPAS vs AR Academics

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

Head to head

AST UPAS

Access Sensor Technologies

About

AST UPAS

Features

Read full description

Use this application to set sampling parameters for Access Sensor Technologies’ Ultrasonic Personal Aerosol Sampler (UPAS). Parameters that can be adjusted using this application include the name, cartridge id, start time, duration, flow rate, and duty cycle for each filter sample. Make sure any mobile device that you will use to program the UPAS is running iOS 12 or later.

About

AR Academics

Features

Read full description

Download the AR Academics App today to get started scheduling one-on-one private appointments with top tier tutors, complimentary practice tests to get you ready for test day, and to view all of your account details in one centralized location.

Screenshots

AST UPAS3 screens

AR Academics3 screens

Verdict

The call

The clearest difference is ads: AST UPAS at none against AR Academics's shown. AST UPAS also leads on update cadence (every 3 months vs every 21 months) and iOS requirement (12.0 vs 14.0). On price, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

AST UPAS ships an update every 3 months, AR Academics every 21 months. The most recent releases landed on October 27, 2026 and November 3, 2026 respectively.

Scorecard3 real differences · 3 level

AST UPAS versus AR Academics: the parameters behind the verdict, then further details
Parameter	AST UPAS	AR Academics
Price	Free	Free
Update frequency	Every 3 months — better	Every 21 months
Ads	No — better	Yes
In-app purchases	No	No
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	12.0 — better	14.0
Further details — not scored
Size	11 MB	121 MB
Age rating	4+	4+
Developer	Access Sensor Technologies	AR Academics LLC

In-app purchases

None

AST UPAS

No in-app purchases

None

AR Academics

No in-app purchases

Questions

Is AST UPAS free?

AST UPAS is free to download, with no in-app purchases.

Is AR Academics free?

AR Academics is free to download, with no in-app purchases.

Do AST UPAS or AR Academics have ads?

AR Academics shows ads; AST UPAS does not.

Which is updated more often, AST UPAS or AR Academics?

AST UPAS ships an update every 3 months, and AR Academics every 21 months. Most recently, AST UPAS was updated on October 27, 2026 and AR Academics on November 3, 2026.