# naturalForms vs Backflow Pro

The clearest difference is rating: Backflow Pro at 5.0 against naturalForms's 3.8. Backflow Pro also leads on update cadence (every 3 weeks vs every 6 months). naturalForms's advantage is in-app purchases (none vs 5) and ratings volume (12 vs 1). On price, ads and device support there is nothing between them.

Both are free to download. Backflow Pro sells 5 in-app purchases, starting at $3.99 per month. naturalForms asks for nothing beyond the download.

Backflow Pro holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: naturalForms has 12 ratings behind it against 1, so its average is the more settled of the two.

naturalForms ships an update every 6 months, Backflow Pro every 3 weeks. The most recent releases landed on June 5, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | naturalForms | Backflow Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (12 ratings)](https://appshunter.io/ios/app/naturalforms/id581005659/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/backflow-pro/id1643496459/reviews)** |
| Number of ratings | **12** | 1 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 10 MB | 22 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ExpeData](https://appshunter.io/developer/437073178) | [Time Lock Documentation, LLC](https://appshunter.io/developer/1196195710) |

## What reviewers say

### naturalForms

[App page](https://appshunter.io/ios/app/naturalforms/id581005659)

Streamline business workflows with this mobile data capture solution. Easily complete forms using photos, drawings, notes, and signatures, converting information to digital data for improved productivity and cost savings.

**Highlights:** Automate any workflow with custom business forms, Natural data collection via photos, drawings, and signatures, Offline form completion and data processing, Pre-populate form data via CSV or API, Advanced field features like calculations and conditional logic, Direct integration with backend systems via APIs, Print, email, or export forms as PDF

**In-app purchases:** none


### Backflow Pro

[App page](https://appshunter.io/ios/app/backflow-pro/id1643496459)

This app digitizes backflow prevention documentation, creating secure, visual records with time-stamped photos and GPS data. It streamlines compliance letters, invoices, and repair tracking for building and facility professionals.

**Highlights:** Digital backflow prevention program creation, Time-stamped and GPS-stamped photo embedding, Electronic signature capture, Automated compliance letters and invoices, Cloud syncing across multiple devices, Scheduling calendar with push notifications, Organized file storage by project and client

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stand Alone Plan | $3.99 | per month |
| Bronze Plan | $29.99 | per month |
| Silver Plan | $49.99 | per month |
| Gold Plan | $71.99 | per month |
| Platinum Plan | $80.99 | per month |


## Frequently asked questions

### Is naturalForms free?

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

### Is Backflow Pro free?

Backflow Pro is free to download, with in-app purchases available.

### Which has better reviews, naturalForms or Backflow Pro?

Backflow Pro is rated higher. naturalForms averages 3.8 out of 5 from 12 ratings, while Backflow Pro averages 5.0 from 1 ratings.

### Do naturalForms or Backflow Pro have ads?

Neither naturalForms nor Backflow Pro shows ads.

### Which is updated more often, naturalForms or Backflow Pro?

naturalForms ships an update every 6 months, and Backflow Pro every 3 weeks. Most recently, naturalForms was updated on June 5, 2026 and Backflow Pro on June 1, 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.*