Comparison

vPro vs 19 Theory

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

Head to head
About

vPro

Control your Vista vPro solid-state lighting transformers wirelessly. Adjust brightness in real-time, schedule custom on/off/dim times, and utilize sunrise/sunset features. Save and load presets for easy management.

Highlights
  • Real-time brightness control
  • Custom daily on/off/dim scheduling
  • Dual dim time settings
  • Optional sunrise/sunset timing
  • Load and save presets
  • Live settings demo
Features
Read full description

The vPro app is your wireless control center for your Vista vPro solid-state lighting transformers. Features: • Control brightness in real-time • Set custom on/off/dim times for each day of the week • Two separate dim times available • Optional sunrise/sunset timing • Load and save presets • See a live demo of your settings throughout the week • Easy setup This app requires a Vista vPro transformer and a device that supports Bluetooth 4.0 Low Energy running iOS 7.0 or later.

About

19 Theory

This platform helps organizations manage people, communication, and content. It centralizes updates, facilitates group management with role-based access, and allows for engagement through likes and comments. Secure and private, it aims to streamline internal communication and foster collaboration.

Highlights
  • Organized communication
  • Group management
  • Role-based access
  • Content management
  • Customizable notifications
  • Secure and private
Features
Read full description

19 Theory turns a goal into a plan you can follow, fitted to the week you actually have. Someone who teaches builds the curriculum. 19 Theory turns it into your week, and hands you one thing to start today. WHAT IT DOES • Structured plans — week-by-week or day-by-day curricula published by schools, coaching centres and training institutes. Every section is reviewed by a person before a learner can reach it. • One timetable — several plans, one schedule. Say how many hours you have, or name a date to finish by, and the week is built around it. Work that will not fit moves to the next week; it is never dropped. • Today — a queue in time order. Late work first, then what is due, then a way to get ahead, with one thing pulled out to begin. • Modules and quizzes — reading, practice questions and training runs. Keep your place across sessions, and earn a certificate on the ones that offer it. • Study reminders — one notification a day, at a time you choose, naming the day's work. • Up to six learners on one login — for a family, each with their own plans, progress and timetable. FOR TEACHERS AND COMMUNITIES • Publish your own plan, or adopt one another community has already published. • Assign it to a whole group in one action, and set the date the cohort is working to. • See who is behind — per plan and per learner — and coach them through it. WHAT IT WILL NOT DO • It will not guess your pace. Set no weekly hours and it says "your own pace" and counts modules, rather than printing a percentage it cannot stand behind. The plan still runs. • It will not grade your character. No streaks, no scores, no badges. Late work is listed as late and then rescheduled, which is the only useful thing to do with it. • It will not invent a curriculum for you. Plans come from people who teach. AI helps them draft; nothing reaches a learner until a person has reviewed every section of it. Browse plans, modules and quizzes, and read a full curriculum, without an account. An account is only for the part that is yours: your timetable, your progress and your reminders. Questions or feedback: nextgenapps146@gmail.com

Screenshots

vPro4 screens
19 Theory4 screens

Verdict

The call

The clearest difference is rating: 19 Theory at 4.8 against vPro's 1.0. 19 Theory also leads on update cadence (every 6 days vs every 2 months) and ratings volume (6 vs 1). On price, ads, in-app purchases and monetization model 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.

ReceptionRating · Positive reviews · Number of ratings

19 Theory holds the better App Store score, 4.8 against 1.0. That said, the two scores are not equally well evidenced: 19 Theory has 6 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

vPro ships an update every 2 months, 19 Theory every 6 days. The most recent releases landed on October 5, 2026 and October 3, 2026 respectively.

Scorecard3 real differences · 7 level
vPro versus 19 Theory: the parameters behind the verdict, then further details
ParametervPro19 Theory
PriceFreeFree
Rating1.0 (1 ratings)4.8 (6 ratings) — better
Positive reviews14.3% of reviews—
Number of ratings16 — better
Update frequencyEvery 2 monthsEvery 6 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.6
Further details — not scored
Size2 MB38 MB
Age rating4+4+
DeveloperRoss JustinSantosh B

Customer experience

vPro

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews21 reviews
Positive14.3%
Neutral0.0%
Negative85.7%

19 Theory

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

vPro

No in-app purchases

None

19 Theory

No in-app purchases

Questions

Is vPro free?
vPro is free to download, with no in-app purchases.
Is 19 Theory free?
19 Theory is free to download, with no in-app purchases.
Which has better reviews, vPro or 19 Theory?
19 Theory is rated higher. vPro averages 1.0 out of 5 from 1 ratings, while 19 Theory averages 4.8 from 6 ratings.
Do vPro or 19 Theory have ads?
Neither vPro nor 19 Theory shows ads.
Which is updated more often, vPro or 19 Theory?
vPro ships an update every 2 months, and 19 Theory every 6 days. Most recently, vPro was updated on October 5, 2026 and 19 Theory on October 3, 2026.

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