CSU UPAS vs OWL
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CSU UPAS
This app controls a personal air sampler device. It allows users to customize settings like sample name, flow rate, start time, duration, and GPS location before running the sensor. Data can then be downloaded to your phone or tablet.
- Bluetooth sensor pairing
- Customize sample name
- Adjust flow rate
- Set sensor start time and duration
- Configure GPS settings
- Download UPAS files
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CSU UPAS The controlling app for the personal air sampler developed by the Volckens Research Group Features: - Pair your phone with our sensor through iOS low energy bluetooth connection - Customize sample name before running sensor in running setting - Customize Flow rate in running setting - Customize sensor starting time and running duration - Customize GPS setting - Download UPAS files to phone/iPAD
OWL
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Join OWL for instant access to free eLearning for everyone at your charity—staff, volunteers, board members and clients. Choose from charity-focused courses and training programs. Apply for your own branded learning platform. Connect with charities like yours. On OWL, registered charities can: • Access the OWL eLearning library • Centralize and automate training • Share resources with other charities • Apply for a branded learning platform • Create and upload custom eLearning
Screenshots
Verdict
The clearest difference is iOS requirement: CSU UPAS at 9.0 against OWL's 15.5. On price, update cadence, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 22, 2026 and October 3, 2026 respectively.
| Parameter | CSU UPAS | OWL |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 15.5 |
| Further details — not scored | ||
| Size | 18 MB | 47 MB |
| Age rating | 4+ | 4+ |
| Developer | Colorado State University | Open World Learning Inc. |
In-app purchases
CSU UPAS
No in-app purchases
OWL
No in-app purchases
