# Pool Math by TroubleFreePool vs LobbyPing Kiosk Receptionist

The clearest difference is rating: LobbyPing Kiosk Receptionist at 5.0 against Pool Math by TroubleFreePool's 3.6. LobbyPing Kiosk Receptionist also leads on review sentiment (100% vs 63%) and update cadence (every 2 days vs fortnightly). Pool Math by TroubleFreePool's advantage is ratings volume (287 vs 1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Pool Math by TroubleFreePool sells 1 in-app purchase, starting at $7.99 per year and LobbyPing Kiosk Receptionist sells 6 in-app purchases, starting at $19.99 per month. Whichever you choose, the download price is not the number that matters.

LobbyPing Kiosk Receptionist holds the better App Store score, 5.0 against 3.6. That said, the two scores are not equally well evidenced: Pool Math by TroubleFreePool has 287 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 63% of Pool Math by TroubleFreePool's written reviews are positive against 100% of LobbyPing Kiosk Receptionist's.

Pool Math by TroubleFreePool ships an update fortnightly, LobbyPing Kiosk Receptionist every 2 days. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Pool Math by TroubleFreePool | LobbyPing Kiosk Receptionist |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (287 ratings)](https://appshunter.io/ios/app/pool-math-by-troublefreepool/id1228819359/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/lobbyping-kiosk-receptionist/id6793347161/reviews)** |
| Number of ratings | **287** | 1 |
| Positive reviews | 63.4% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 days** |
| Monetization | Freemium | **Free** |
| Size | 314 MB | 37 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TroubleFreePool](https://appshunter.io/developer/1228819358) | [Jaylen James](https://appshunter.io/developer/6793347163) |

## What reviewers say

### Pool Math by TroubleFreePool

[App page](https://appshunter.io/ios/app/pool-math-by-troublefreepool/id1228819359)

Easily manage your swimming pool's water chemistry by tracking key levels like chlorine and pH. This app calculates the precise amounts of chemicals needed to maintain clear, algae-free water, offering a cost-effective alternative to pool store advice.

**Highlights:** Chemical level calculators (pH, Chlorine, Alkalinity, etc.), Track pool maintenance tasks, Log chemical additions, Weather condition tracking, Chemical addition effect calculations, Bleach price comparison, Data backup and export

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pool Math Premium Subscription | $7.99 | per year |

**What reviewers like**

- 💎 Excellent for maintaining a clean, balanced pool
- 🔍 Comprehensive tracking of test results and chemical additions
- 🧠 Helpful recommendations for chemical adjustments
- ⚙️ Useful features like SLAM mode and timeline
- 🤖 Automatic weather data logging

**What reviewers complain about**

- 🐛 Issues with data syncing and backup
- 🤔 Unintuitive interface and navigation
- 💰 Subscription model and lack of one-time purchase
- 🚫 Limited support for non-chlorine sanitizers and spa-specific options
- 🔄 Bugs with chemical addition logging and target value retention

**Reported bugs**

- Subscription issues and inability to restore purchases
- App crashes and freezes on certain actions
- Incorrect chemical recommendations and calculations
- Disappearing historical data after updates

**Requested features**

- Custom target ranges and alerts
- Ability to log non-standard chemical additions
- Export options for data analysis
- Apple Watch integration
- Improved user guidance and on-boarding


### LobbyPing Kiosk Receptionist

[App page](https://appshunter.io/ios/app/lobbyping-kiosk-receptionist/id6793347161)

This app serves as a digital kiosk for visitor check-ins at your office or reception area. It sends an email notification to staff when a visitor arrives, ensuring prompt attention without a dedicated receptionist.

**Highlights:** Visitor check-in kiosk, Email notifications for staff, Simple front desk solution, Reception area setup, Office visitor arrival alerts

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LobbyPing Starter Monthly | $19.99 | per month |
| LobbyPing Team Monthly | $29.99 | per month |
| LobbyPing Growth Monthly | $49.99 | per month |
| LobbyPPing Bussiness Monthly | $79.99 | per month |
| LobbyPing Scale Monthly | $129.99 | per month |
| LobbyPing Pro Monthly | $199.99 | per month |


## Frequently asked questions

### Is Pool Math by TroubleFreePool free?

Pool Math by TroubleFreePool is free to download, with in-app purchases available.

### Is LobbyPing Kiosk Receptionist free?

LobbyPing Kiosk Receptionist is free to download, with in-app purchases available.

### Which has better reviews, Pool Math by TroubleFreePool or LobbyPing Kiosk Receptionist?

LobbyPing Kiosk Receptionist is rated higher. Pool Math by TroubleFreePool averages 3.6 out of 5 from 287 ratings, while LobbyPing Kiosk Receptionist averages 5.0 from 1 ratings.

### Do Pool Math by TroubleFreePool or LobbyPing Kiosk Receptionist have ads?

Neither Pool Math by TroubleFreePool nor LobbyPing Kiosk Receptionist shows ads.

### Which is updated more often, Pool Math by TroubleFreePool or LobbyPing Kiosk Receptionist?

Pool Math by TroubleFreePool ships an update fortnightly, and LobbyPing Kiosk Receptionist every 2 days. Most recently, Pool Math by TroubleFreePool was updated on November 2, 2026 and LobbyPing Kiosk Receptionist on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*