Comparison

i vs Prats Center

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

Head to head
About

i

Features
Read full description

Medical reminder: Our hardwares have obtained medical certificates issued by CFDA and FDA, that is, the hardware that interacts with this app has received regulatory clearance from China and US. CV-7800 Auto Phoropter @i-Optik is a complete optometry examination solution for your office workflow, which is kept safety with customers. 1.Powerful and simple operation interface. 2.Lens switch fast and smoothly, provide more comfortable optometry experience. 3.Built-in client files management function, easy to retrieve client file. 4.Support data transmission with external devices such as Auto refractometer/Chart Monitor etc. Contact us at webmaster@nbmingsing.com

About

Prats Center

Features
Read full description

Prats Center es la aplicación para tomar las medidas de centraje con facilidad y precisión. La aplicación cuenta con cinco apartados: 1. Interpupilar: permite medir la distancia interpupilar, el puente y las alturas en un único proceso. 2. Pantoscópico: medición del ángulo pantoscópico. 3. Facial: medición del ángulo facial de la montura. 4, Distancia de lectura: obtención de la distancia a la que el usuario acostumbra a leer. 5. Resumen: pantalla que resume todos los datos obtenidos en las distintas mediciones. Prats Center ha sido diseñado para obtener de forma fácil, rápida y precisa las mediciones de centraje que el profesional de la óptica necesita para su trabajo diario.

Verdict

The call

The clearest difference is update cadence: i at every 5 weeks against Prats Center's every 7 months. 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

i ships an update every 5 weeks, Prats Center every 7 months. The most recent releases landed on October 6, 2026 and October 27, 2026 respectively.

Scorecard1 real difference · 5 level
i versus Prats Center: the parameters behind the verdict, then further details
ParameteriPrats Center
PriceFreeFree
Update frequencyEvery 5 weeks — betterEvery 7 months
AdsNoNo
In-app purchasesNoNo
DevicesiPadiPad
Requires iOS12.012.0
Further details — not scored
Size166 MB65 MB
Age rating12+4+
Developer宁波明星科技发展有限公司Perception Technologies, S.L.

In-app purchases

None

i

No in-app purchases

None

Prats Center

No in-app purchases

Questions

Is i free?
i is free to download, with no in-app purchases.
Is Prats Center free?
Prats Center is free to download, with no in-app purchases.
Do i or Prats Center have ads?
Neither i nor Prats Center shows ads.
Which is updated more often, i or Prats Center?
i ships an update every 5 weeks, and Prats Center every 7 months. Most recently, i was updated on October 6, 2026 and Prats Center on October 27, 2026.

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