Poolsure Mobile vs Cornerstone Cards
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Poolsure Mobile
This app helps pool owners track chemical levels and receive automated calculations for saturation index and chemical recommendations. It simplifies pool maintenance by eliminating manual calculations and providing vital pool information.
- Daily pool log entries
- Automated saturation index calculation
- Chemical dosage recommendations
- View tank levels and chemical readings
- Sync with Spin Touch
- View active alerts
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*** Currently available to active Poolsure customers only! *** Take your pool log to the next level! When you create daily pool log entries using Poolsure Mobile, a powerful calculator turns your data into vital pool information. No more pool math; Poolsure Mobile calculates your pool's saturation index, chemical recommendations, and more! A beautiful and safe pool is at your fingertips! APP HIGHLIGHTS • View recent pool information, including tank levels and chemical readings • Create pool log entries through manual entry or Spin Touch sync • View active alerts from your Poolsure chemical controller • Receive a saturation index calculation after each log entry • Receive chemical dosage recommendations after each log entry Keep your pool beautiful and safe for swimmers. Reach out to Poolsure to sign up today!
Cornerstone Cards
This app helps trading card enthusiasts and sellers capture high-quality images of cards and their corners. It streamlines the process of showcasing card condition, enabling sellers to generate professional photos that build buyer trust.
- High-quality card image capture
- Focus on card corners
- Streamlines condition showcasing
- Professional photo generation
- Builds buyer trust
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Cornerstone is an app designed specifically for trading card enthusiasts and sellers. This app streamlines the process of showcasing the quality and condition of trading cards by focusing on capturing high-quality images of the card and its corners. The corners of a card are often the most scrutinized part when assessing its condition, and Cornerstone ensures that these critical details are highlighted with precision. By using Cornerstone, sellers can quickly and efficiently generate professional photos that accurately represent the state of their cards, making it easier to attract potential buyers and establish trust in the marketplace.
Screenshots
Verdict
The clearest difference is rating: Cornerstone Cards at 5.0 against Poolsure Mobile's 4.0. Cornerstone Cards also leads on iOS requirement (13.4 vs 15.0). Poolsure Mobile's advantage is update cadence (weekly vs every 3 weeks) and ratings volume (4 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Cornerstone Cards holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 4 and 1 respectively.
Poolsure Mobile ships an update weekly, Cornerstone Cards every 3 weeks. The most recent releases landed on October 16, 2026 and October 10, 2026 respectively.
| Parameter | Poolsure Mobile | Cornerstone Cards |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (4 ratings) | 5.0 (1 ratings) — better |
| Number of ratings | 4 — better | 1 |
| Update frequency | Weekly — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.4 — better |
| Further details — not scored | ||
| Size | 166 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | Poolsure, a division of Aquasol Controllers, Inc. | Andrew Hicks |
Customer experience
Poolsure Mobile
Cornerstone Cards
In-app purchases
Poolsure Mobile
No in-app purchases
Cornerstone Cards
No in-app purchases
Questions
Is Poolsure Mobile free?
Is Cornerstone Cards free?
Which has better reviews, Poolsure Mobile or Cornerstone Cards?
Do Poolsure Mobile or Cornerstone Cards have ads?
Which is updated more often, Poolsure Mobile or Cornerstone Cards?
Other comparisons
