# Bend Solver vs Unbend Flat Pattern Calculator

The clearest difference is in-app purchases: Bend Solver at none against Unbend Flat Pattern Calculator's 1. Bend Solver also leads on ads (none vs shown) and update cadence (every 3 days vs fortnightly). On price there is nothing between them.

Both are free to download. Unbend Flat Pattern Calculator sells 1 one-off in-app purchase. Bend Solver asks for nothing beyond the download.

Bend Solver ships an update every 3 days, Unbend Flat Pattern Calculator fortnightly. The most recent releases landed on September 25, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Bend Solver | Unbend Flat Pattern Calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 days** | Fortnightly |
| Size | 2 MB | 57 MB |
| Requires iOS | **12.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [SynVation GmbH](https://appshunter.io/developer/1568702698) | [Omer Faruk BAGCI](https://appshunter.io/developer/1850264269) |

## What reviewers say

### Bend Solver

[App page](https://appshunter.io/ios/app/bend-solver/id1568702696)

**Features:** macOS Compatibility

**In-app purchases:** none


### Unbend Flat Pattern Calculator

[App page](https://appshunter.io/ios/app/unbend-flat-pattern-calculator/id6797460542)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unbend Pro Unlock | $14.99 | one-time |


## Frequently asked questions

### Is Bend Solver free?

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

### Is Unbend Flat Pattern Calculator free?

Unbend Flat Pattern Calculator is free to download, with in-app purchases available.

### Do Bend Solver or Unbend Flat Pattern Calculator have ads?

Unbend Flat Pattern Calculator shows ads; Bend Solver does not.

### Which is updated more often, Bend Solver or Unbend Flat Pattern Calculator?

Bend Solver ships an update every 3 days, and Unbend Flat Pattern Calculator fortnightly. Most recently, Bend Solver was updated on September 25, 2026 and Unbend Flat Pattern Calculator on October 2, 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.*