# iSolve Finance vs Reverse Flow

The clearest difference is in-app purchases: iSolve Finance at none against Reverse Flow's 4. iSolve Finance also leads on iOS requirement (13.0 vs 15.0). Reverse Flow's advantage is update cadence (weekly vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. Reverse Flow sells 4 in-app purchases, starting at $2.99 per month. iSolve Finance asks for nothing beyond the download.

iSolve Finance ships an update every 2 months, Reverse Flow weekly. The most recent releases landed on October 8, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | iSolve Finance | Reverse Flow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/reverse-flow-fire-hydraulics/id6775030535/reviews)** |
| Number of ratings | — | **5** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | — | Free |
| Size | 33 MB | 8 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [isolve business solutions private Limited](https://appshunter.io/developer/1560654320) | [DEREK ANDREW MURDOCK](https://appshunter.io/developer/6775030537) |

## What reviewers say

### iSolve Finance

[App page](https://appshunter.io/ios/app/isolve-finance/id1616892392)

**Features:** macOS Compatibility

**In-app purchases:** none


### Reverse Flow

[App page](https://appshunter.io/ios/app/reverse-flow-fire-hydraulics/id6775030535)

This professional fireground hydraulics platform assists firefighters and pump operators in calculating complex flow rates, pump discharge pressures, and relay pumping requirements. It supports various nozzle types and allows for custom hose coefficients and elevation adjustments for accurate operational planning and decision support.

**Highlights:** Reverse Flow calculations, Required PDP calculations, Relay Pumping calculations, Split Lay analysis, Pump Chart storage, Nozzle support, Custom hose coefficients

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Reverse Flow Monthly Support $3 | $2.99 | per month |
| Reverse Flow Monthly Support $10 | $9.99 | per month |
| Reverse Flow One-Time Support $5 | $4.99 | one-time |
| Reverse Flow Pro | $4.99 | one-time |


## Frequently asked questions

### Is iSolve Finance free?

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

### Is Reverse Flow free?

Reverse Flow is free to download, with in-app purchases available.

### Do iSolve Finance or Reverse Flow have ads?

Neither iSolve Finance nor Reverse Flow shows ads.

### Which is updated more often, iSolve Finance or Reverse Flow?

iSolve Finance ships an update every 2 months, and Reverse Flow weekly. Most recently, iSolve Finance was updated on October 8, 2026 and Reverse Flow on October 24, 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.*