Comparison

OBSERV 520x vs GL0W

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

Head to head
About

OBSERV 520x

This professional tool uses advanced visualization technology to analyze skin concerns from various perspectives. It helps professionals engage clients by providing objective images of skin conditions, demonstrating treatment progress, and informing treatment plans.

Highlights
  • Advanced skin visualization technology
  • Objective imaging of skin concerns
  • Client engagement and consultation tool
  • Treatment progress tracking
  • Inform treatment plan adjustments
  • Insight into subsurface skin layers
Read full description

With the OBSERV® 520x device and the OBSERV® 520x App it is surprisingly easy to engage your clients and convince them of the need to address skin concerns or the opportunity to achieve desired aesthetic results. The various diagnostic modes enable you to quickly identify and highlight skin concerns from different perspectives. The objective images show the skin as it is and help you inform your clients on the best treatment options, as well as manage their expectations. Before, during and after images show treatment progress and results. They’re also the ideal reference point to adjust initial treatment plans and determine possible further treatments. Used as a powerful tool to underline the trusted value and quality of your treatment, the images turn aesthetic consultations into engaged customer experiences. Skin professionals the world over rely on the advanced visualization technology of the OBSERV® 520x in providing clients a clear insight and understanding of their total facial skin condition. From surface appearance to the deepest layers, the OBSERV® 520x captures the complexity and causes of skin concerns. It’s these subsurface layers, not directly visible to the human eye, that hold the key to identifying correct skincare treatments. Based on such insights into their skin health, clients will recognize the need for professional skin treatment to prevent signs of ageing and stimulate the skin’s natural regenerative capacities.

About

GL0W

This app helps you track your skin's progress over time with daily face scans and personalized reminders. It features an AI coach for skin education and gamified elements to keep you motivated, focusing on building confidence and understanding your skin.

Highlights
  • Daily face scanning
  • Skin progress tracking
  • Personalized reminders
  • AI skin education coach
  • Gamified motivation (streaks, milestones)
  • Confidence-building focus
Features
Read full description

Glow is the acne-tracking app that meets you where you are and helps you see how far you've come. Learn how to take care of your skin in luxary. Think of it as the love child of a period tracker and Duolingo, built specifically for your skin. Glow helps you stay consistent with daily face scans, tracks your skin's progress over time, and builds your confidence along the way all without pushing products at you. SCAN YOUR SKIN EVERY DAY Glow makes it easy to photograph your face on a regular schedule and visualize how your skin changes week over week. Consistency is everything in skincare — Glow keeps you honest. REMINDERS THAT ACTUALLY WORK Never miss a scan. Glow sends you personalized notifications so your routine stays on track, just like your favorite habit-building apps. CHAT WITH GLOW AI Got questions about your skin? Glow's built-in AI coach is here for skin education — not to sell you something. Ask anything, learn everything. GAMIFIED FOR REAL LIFE Streaks, milestones, and progress markers keep you motivated. Skincare is a long game — Glow makes it feel rewarding every step of the way. CONFIDENCE-FIRST Glow isn't about chasing perfection. It's about understanding your skin, celebrating progress, and feeling good in your face — acne and all. Whether you're a teenager navigating breakouts for the first time or a young adult looking to finally build a consistent routine, Glow is your no-judgment, no-upsell skin companion. Download Glow and fall in love with your skin. Terms and Conditions Here: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

GL0W4 screens

Verdict

The call

The clearest difference is in-app purchases: OBSERV 520x at none against GL0W's 1. OBSERV 520x also leads on ratings volume (5 vs 1). GL0W's advantage is update cadence (every 3 days vs every 2 weeks). On price, rating, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. GL0W sells 1 in-app purchase, starting at $9.99 per month. OBSERV 520x asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for OBSERV 520x against 5.0 for GL0W. That said, the two scores are not equally well evidenced: OBSERV 520x has 5 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

OBSERV 520x ships an update every 2 weeks, GL0W every 3 days. The most recent releases landed on October 24, 2026 and October 3, 2026 respectively.

Scorecard4 real differences · 6 level
OBSERV 520x versus GL0W: the parameters behind the verdict, then further details
ParameterOBSERV 520xGL0W
PriceFreeFree
Rating5.0 (5 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings5 — better1
Update frequencyEvery 2 weeksEvery 3 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPadiPhone, iPad — better
Requires iOS16.6 — better17.0
Further details — not scored
Size104 MB27 MB
Age rating4+4+
DeveloperInnoFaith beauty sciencesRUCHA D DAVE

Customer experience

OBSERV 520x

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

GL0W

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

OBSERV 520x

No in-app purchases

1 purchases

GL0W

Subscriptions1
  • premium$9.991 Month

Questions

Is OBSERV 520x free?
OBSERV 520x is free to download, with no in-app purchases.
Is GL0W free?
GL0W is free to download, with in-app purchases available.
Which has better reviews, OBSERV 520x or GL0W?
OBSERV 520x and GL0W are both rated 5.0 out of 5 on the App Store, from 5 and 1 ratings respectively.
Do OBSERV 520x or GL0W have ads?
Neither OBSERV 520x nor GL0W shows ads.
Which is updated more often, OBSERV 520x or GL0W?
OBSERV 520x ships an update every 2 weeks, and GL0W every 3 days. Most recently, OBSERV 520x was updated on October 24, 2026 and GL0W on October 3, 2026.

Other comparisons