Comparison

Brownlee PS vs SynStrategy

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

Head to head
About

Brownlee PS

Features
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Brownlee Primary School, which is situated along Wallace Avenue, in the heart of Lisburn’s Historic Quarter, was originally built in 1913, with a two-storey extension added in 1960. The newly refurbished accommodation comprises 7 classrooms, ICT suite, Assembly/Physical Education hall, which also serves as a dining room, library, Music Room, Pupils support areas an outdoor play garden, staff accommodation and offices. The interior is bright and stimulating with recent extensive redecoration having taken place throughout the school. Brownlee is also very well equipped with ICT and audio-visual equipment. Each class has Internet access with Interactive Whiteboards, laptops and iPads incorporating the top recommended educational software for children to use. Download our app to stay up to date with our News Room.

About

SynStrategy

This app categorizes organic reactions by the functional groups they form, aiding chemists in synthetic analysis. It offers over 500 transformations and 400 synthesis examples, with detailed subdivisions for clarity.

Highlights
  • Reactions categorized by functional group
  • 27 main functional group categories
  • Over 500 transformations
  • Over 400 total synthesis examples
  • Subdivided functional group categories
  • Highlights synthetic use cases
Features
Read full description

SynStrategy is an organic chemistry app for anyone studying or working in organic synthesis. Its key feature is the categorization of named reactions and unnamed chemical reactions by the functional groups they form, helping students and practitioners navigate the vast landscape of organic transformations. The app features 27 main functional group categories, each further subdivided (for example, Alcohols include primary, secondary, tertiary, allylic, and homoallylic alcohols, and more). This structured organization gives chemists a clearer view of available transformations during synthetic and retrosynthetic analysis. SynStrategy currently includes over 500 organic chemistry reactions, with their synthetic use cases highlighted in more than 400 total synthesis examples. NEW: We've added the mechanisms for a collection of classic named oxidation reactions, with more to come. Each mechanism includes literature references you can look up for further detail. The first set covers the Albright-Goldman, Anelli, Babler-Dauben, Baeyer-Villiger, Ball-Goodwin-Morton, Collins, Corey-Gilman-Ganem, Corey-Kim, Corey-Schmidt, Corey-Suggs, Criegee, Dakin, Davis, Davis Asymmetric, and TEMPO oxidations. Beyond the reference library, SynStrategy includes interactive tools to help you study organic chemistry and organize these transformations. Save specific reactions into custom datasets that can be exported and shared with colleagues. Test your knowledge with the app's study modes: a Quiz system featuring three formats with multiple-choice and advanced questions on chemical reactions and total synthesis steps, plus a traditional Flashcard mode. Both modes include session analytics so you can track your progress. NEW: A Statistics dashboard now lets you review your quiz and flashcard results, see what you've studied, and get an overview of your activity in the app over time (More → Statistics). Whether you're preparing for an organic chemistry (orgo) exam, reviewing named reactions and mechanisms, or planning a synthesis in the lab, SynStrategy aims to be a useful organic chemistry companion. There are countless exceptional total syntheses and synthetically relevant methodologies in the literature, and we aim to grow the selection over time. Have a particular organic reaction or total synthesis example you'd like to see added? E-mail us: serviceofsynthesis@gmail.com Summary of Features: - Named and unnamed reactions, categorized by functional group - Over 500 organic chemistry transformations - Mechanisms for selected reactions (more to come) - Over 400 total synthesis examples - Create, export, and import custom reaction datasets - Multi-format Quiz system with session analytics - Dedicated Flashcard mode for systematic review - Statistics to review your results and activity in the app over time If you need support, please contact serviceofsynthesis@gmail.com

Screenshots

Brownlee PS4 screens
SynStrategy4 screens

Verdict

The call

The clearest difference is device support: Brownlee PS at 3 against SynStrategy's 1. Brownlee PS also leads on iOS requirement (14.0 vs 16.0). On price, update cadence, ads and in-app purchases 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

Brownlee PS ships an update every 6 months, SynStrategy every 3 months. The most recent releases landed on October 10, 2026 and October 16, 2026 respectively.

Scorecard2 real differences · 8 level
Brownlee PS versus SynStrategy: the parameters behind the verdict, then further details
ParameterBrownlee PSSynStrategy
PriceFreeFree
Rating—5.0 (9 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—9 — better
Update frequencyEvery 6 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS14.0 — better16.0
Further details — not scored
Size56 MB36 MB
Age rating4+4+
DeveloperBUSINESS SYSTEM SOLUTIONS (N.I.) LTDWilli M. Amberg

In-app purchases

None

Brownlee PS

No in-app purchases

None

SynStrategy

No in-app purchases

Questions

Is Brownlee PS free?
Brownlee PS is free to download, with no in-app purchases.
Is SynStrategy free?
SynStrategy is free to download, with no in-app purchases.
Do Brownlee PS or SynStrategy have ads?
Neither Brownlee PS nor SynStrategy shows ads.
Which is updated more often, Brownlee PS or SynStrategy?
Brownlee PS ships an update every 6 months, and SynStrategy every 3 months. Most recently, Brownlee PS was updated on October 10, 2026 and SynStrategy on October 16, 2026.

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