Formulation Compass vs PSSI
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Formulation Compass
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Formulation Compass โ Agrochemical is your ideal app to provide one-stop solution for your formulation success and enable performance attributes for customers in agrochemical application. The App provides recipe guidance and product recommendation. The product categories cover various ingredients in agrochemical formulations, including wetting agents, dispersants, emulsifiers, solvents, defoamers, chelating agents, neutralizers, intermediates and others. Dow has established agrochemical adjuvants research and development, screening, and formulation research and development centers in many regions and countries, aiming to provide even more comprehensive technical solutions and faster, more convenient technical support for customers.
PSSI
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Phase Separation Science is a NELAP accredited full service environmental laboratory located in Baltimore, Maryland specializing in expedited turnaround times. Under the same ownership since 1989, our management cadre and laboratory personnel collectively boast an unparalleled wealth of experience in the domain of quantitative analysis within instrumental chemistry. Our proficiency stands as a benchmark of excellence, reflecting decades of dedicated method refinement.
Screenshots
Verdict
The clearest difference is ads: PSSI at none against Formulation Compass's shown. PSSI also leads on update cadence (every 2 days vs monthly). Formulation Compass's advantage is iOS requirement (11.0 vs 17.0). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Formulation Compass ships an update monthly, PSSI every 2 days. The most recent releases landed on October 20, 2026 and October 11, 2026 respectively.
| Parameter | Formulation Compass | PSSI |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly | Every 2 days โ better |
| Ads | Yes | No โ better |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 11.0 โ better | 17.0 |
| Further details โ not scored | ||
| Size | 33 MB | 135 MB |
| Age rating | 4+ | 17+ |
| Developer | The Dow Chemical Company | Evan Richardson |
In-app purchases
Formulation Compass
No in-app purchases
PSSI
No in-app purchases






