Comparison

Joninn vs DigitFace

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

Head to head
About

Joninn

Features
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This App is used to measure contact angle from photos taken directly above a test droplet. WORKING PRINCIPLE This App uses a modified Bikerman method, to calculate the contact angle (CA) from the smartphone photo. The Bikerman method is only suitable for hydrophilic and neutral surfaces. - For CA less than 75° it works great. - For CA between 75° and 85° it has limited accuracy. - For CA above 85° it is unsuitable. PHOTO TO BE ANALYZED The Photo to be analyzed must be taken from directly above the droplet, and the photo must include a ruler with millimeter markings. When taking the photo, you will get the highest accuracy of the calculated contact angle by ensuring that: ►The droplet should be at least 10% of the photo width. ►The contour of the droplet is in focus and has high contrast to the background. ►Adjust the light to avoid shadows and very bright spots in the photo. ►A single color background (such as a piece of paper) works best. Especially if the surface to be analyzed is transparent. ►If possible use a high contrast test liquid (such as our TL1). ►The ruler should be oriented horizontally or vertically in the photo. Get as close as possible to 0° or 90° orientation as possible. CRITICAL REVIEW OF RESULTS Due to the varying quality of the photos recorded, the measured contact angles shouldn’t be trusted blindly. ►You will get an indication of the accuracy of the measurement from the mean, minimum and maximum estimates of the CA on the results page. If these estimates differ significantly, then the accuracy will be poor. ►You will also get an indication of the accuracy of the measurement from the circles overlaid the photo. If these differ significantly from the actual droplet, then the accuracy will be poor. If you often get poor results, then you must adjust the light conditions to give a higher quality photo. ►If either of the two circles are clearly off the droplet, you should only use the other result. -The purple circle corresponds to MaxCA. -The green circle corresponds to MinCA. ABOUT This App is made freely available by Joninn ApS, a company specialized in development, production and use of hydrophilic coatings. We have ready-to-ship hydrophilic coating products, and assist our customers on a consultancy basis to get their liquid handling device operational. For detailed and updated information on this App please visit our web-site www.joninn.com

About

DigitFace

Features
Read full description

Giải Pháp Toàn Diện Cho Làn Da Của Bạn Bạn muốn hiểu rõ hơn về làn da của mình? Đây là ứng dụng hỗ trợ phân tích da thông qua công nghệ tiên tiến, giúp bạn nhận diện tình trạng da hiện tại và cung cấp các gợi ý hữu ích để chăm sóc da hiệu quả. Điểm Nổi Bật: - Quét và Phân Tích Làn Da: Sử dụng công nghệ hiện đại, ứng dụng hỗ trợ nhận diện các đặc điểm trên da như bã nhờn, lỗ chân lông, hoặc các dấu hiệu khác. - Hiểu Nguyên Nhân Vấn Đề Da: Cung cấp thông tin về các yếu tố ảnh hưởng đến làn da của bạn, từ môi trường sống đến thói quen hàng ngày. - Đề Xuất Giải Pháp Chăm Sóc Cá Nhân Hóa: Ứng dụng đưa ra các gợi ý phù hợp với tình trạng da của bạn, giúp bạn xây dựng quy trình chăm sóc da tốt hơn. Tải ngay để bắt đầu hành trình chăm sóc và cải thiện làn da của bạn!

Screenshots

Joninn4 screens
DigitFace4 screens

Verdict

The call

The clearest difference is update cadence: DigitFace at every 2 months against Joninn's every 8 months. Joninn's advantage is iOS requirement (10.0 vs 12.4). On price, ads, 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

Joninn ships an update every 8 months, DigitFace every 2 months. The most recent releases landed on October 3, 2026 and October 15, 2026 respectively.

Scorecard2 real differences · 4 level
Joninn versus DigitFace: the parameters behind the verdict, then further details
ParameterJoninnDigitFace
PriceFreeFree
Update frequencyEvery 8 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS10.0 — better12.4
Further details — not scored
Size5 MB17 MB
Age rating4+4+
DeveloperJonsman Innovation ApSYECAPP

In-app purchases

None

Joninn

No in-app purchases

None

DigitFace

No in-app purchases

Questions

Is Joninn free?
Joninn is free to download, with no in-app purchases.
Is DigitFace free?
DigitFace is free to download, with no in-app purchases.
Do Joninn or DigitFace have ads?
Neither Joninn nor DigitFace shows ads.
Which is updated more often, Joninn or DigitFace?
Joninn ships an update every 8 months, and DigitFace every 2 months. Most recently, Joninn was updated on October 3, 2026 and DigitFace on October 15, 2026.

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