# PayIt St. Louis vs TerrillFLEX

The clearest difference is iOS requirement: PayIt St. Louis at 12.4 against TerrillFLEX's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

PayIt St. Louis ships an update every 3 months, TerrillFLEX every 4 months. The most recent releases landed on June 5, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | PayIt St. Louis | TerrillFLEX |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.7 (23 ratings)](https://appshunter.io/ios/app/payit-st-louis/id1112696460/reviews)** | — |
| Number of ratings | **23** | — |
| Positive reviews | 46.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 4 months |
| Monetization | Free | — |
| Size | 104 MB | 29 MB |
| Requires iOS | **12.4** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [PayIt, LLC](https://appshunter.io/developer/964155411) | [Marsh & McLennan Agency](https://appshunter.io/developer/1027461929) |

## What reviewers say

### PayIt St. Louis

[App page](https://appshunter.io/ios/app/payit-st-louis/id1112696460)

This app offers a streamlined way to pay your City of St. Louis bills, including Water & Refuse and various taxes. It allows for autopay, partial payments, and provides reminders to avoid late fees. Securely manage multiple city service payments and access receipts all in one place.

**Highlights:** Pay Water & Refuse bills, Pay Personal Property & Real Estate Tax, Autopay setup, Partial payment options, Payment reminders, Securely manage multiple bills, Access payment receipts

**Features:** macOS Compatibility

**In-app purchases:** none


### TerrillFLEX

[App page](https://appshunter.io/ios/app/terrillflex/id6443680366)

**Features:** Apple Wallet, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is PayIt St. Louis free?

PayIt St. Louis is free to download, with no in-app purchases.

### Is TerrillFLEX free?

TerrillFLEX is free to download, with no in-app purchases.

### Do PayIt St. Louis or TerrillFLEX have ads?

Neither PayIt St. Louis nor TerrillFLEX shows ads.

### Which is updated more often, PayIt St. Louis or TerrillFLEX?

PayIt St. Louis ships an update every 3 months, and TerrillFLEX every 4 months. Most recently, PayIt St. Louis was updated on June 5, 2026 and TerrillFLEX on September 15, 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.*