Comparison

Petra lite vs True White Box

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

Head to head
About

Petra lite

Features
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Applicazione integrata con il software Checkup di Biosfera S.r.l. Tramite Petra Lite รจ possibile inviare immagini e dettare note all'interno della cartella paziente aperta in Checkup.

About

True White Box

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True White Box is a monitoring app that assists the dentist in tracking patient compliance with the actual usage hours of NOXI nighttime aligners. It serves as a potential aid in communication between the clinician and the patient. By placing the aligner in the designated container, this app evaluates chromatic variations on the surface of the mask and, through a colorimetric system, detects changes in the shade of the aligner's white, indicating whether the mask has been worn sufficiently. NOXI, the aligner worn only at night, is an excellent product from Sweden & Martina, a Made in Italy company that is a leader in the production of devices for the dental industry.

Screenshots

Petra lite4 screens
True White Box3 screens

Verdict

The call

The clearest difference is update cadence: True White Box at weekly against Petra lite's every 48 months. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Petra lite ships an update every 48 months, True White Box weekly. The most recent releases landed on September 10, 2026 and May 17, 2026 respectively.

Scorecard1 real difference ยท 5 level
Petra lite versus True White Box: the parameters behind the verdict, then further details
ParameterPetra liteTrue White Box
PriceFreeFree
Update frequencyEvery 48 monthsWeekly โ€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPod
Requires iOS12.4 โ€” better13.0
Further details โ€” not scored
Size7 MB23 MB
Age rating12+4+
DeveloperCarlo NarcisiS2NAM S.r.l.

In-app purchases

None

Petra lite

No in-app purchases

None

True White Box

No in-app purchases

Questions

Is Petra lite free?
Petra lite is free to download, with no in-app purchases.
Is True White Box free?
True White Box is free to download, with no in-app purchases.
Do Petra lite or True White Box have ads?
Neither Petra lite nor True White Box shows ads.
Which is updated more often, Petra lite or True White Box?
Petra lite ships an update every 48 months, and True White Box weekly. Most recently, Petra lite was updated on September 10, 2026 and True White Box on May 17, 2026.

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