AST UPAS vs BaldCare
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AST UPAS
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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.
BaldCare
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BaldCare Understand your scalp. Know what to do next. BaldCare is made for caring for a bald scalp. Whether you’ve just started shaving your head or have been bald for years, the app helps you understand your scalp and build a routine that works for you. Analyse your scalp, discover personal advice and products, and track your progress in one place. BaldCare is available in English and Dutch. UNDERSTAND YOUR SCALP Every scalp is different. BaldCare uses your profile, shaving method, care goals and relevant analysis results to tailor guidance and recommendations to your situation. ANALYSE YOUR SCALP Select a photo to learn about your scalp’s visible condition. The analysis shows skin type, sensitivity, shine, overall condition and a scalp score, with practical areas of concern when applicable. With Premium, you can also track specific moments, such as after shaving, after sun exposure or during a dry period. BaldCare provides care guidance, not a medical diagnosis, and does not replace a healthcare professional. BUILD YOUR ROUTINE From daily hydration and sun protection to care around shaving, build a routine that suits your scalp, shaving method and goals. TRACK YOUR PROGRESS Save progress photos, compare moments and follow your scalp scores over time. View results by analysis context and see how your scalp develops. FIND PRODUCTS THAT FIT Explore selected products for sun protection, hydration, cleansing, shaving and recovery. Recommendations can be matched to your profile and relevant analysis results. ASK BALDCARE Ask your personal scalp guide about scalp care, shaving, products or your routine. If you enable personalised chat, the guide can take relevant information from your profile into account. BALDCARE ORIGINALS Watch short videos about scalp care, shaving, protection and daily care. PRIVACY FIRST Progress photos you save remain on your device. Your photo library is not uploaded automatically; only a photo you select for analysis is processed for that analysis. BaldCare does not sell personal data or use advertising trackers to follow you across other apps or websites. FREE & PREMIUM BaldCare Free: • 3 scalp analyses per month • 15 chat messages per month • Routines and product recommendations • Progress photos BaldCare Premium: • 15 scalp analyses per month • 300 chat messages per month • All analysis contexts • Full progress and score history BaldCare — Care. Protect. Own your look. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: AST UPAS at none against BaldCare's 2. AST UPAS also leads on iOS requirement (12.0 vs 17.6). BaldCare's advantage is update cadence (every 11 days vs every 3 months). On price, 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
Both are free to download. BaldCare sells 2 in-app purchases, starting at $4.99 per month. AST UPAS asks for nothing beyond the download.
AST UPAS ships an update every 3 months, BaldCare every 11 days. The most recent releases landed on October 4, 2026 and October 7, 2026 respectively.
| Parameter | AST UPAS | BaldCare |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | Every 11 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 11 MB | 26 MB |
| Age rating | 4+ | 12+ |
| Developer | Access Sensor Technologies | Ryan Burgzorg |
In-app purchases
AST UPAS
No in-app purchases
BaldCare
- Premium Monthly$4.991 Month
- Premium Yearly$49.991 Year









