# Tiikr vs Structural Lines

The clearest difference is update cadence: Tiikr at every 4 weeks against Structural Lines's every 2 months. Tiikr also leads on iOS requirement (14.0 vs 16.1). On price, ads, in-app purchases and device support there is nothing between them.

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

Tiikr ships an update every 4 weeks, Structural Lines every 2 months. The most recent releases landed on June 1, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Tiikr | Structural Lines |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 2 months |
| Monetization | Free | — |
| Size | 37 MB | 56 MB |
| Requires iOS | **14.0** | 16.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tiikr Pty Ltd](https://appshunter.io/developer/930781611) | [Efficient Foundations Pty Ltd](https://appshunter.io/developer/1047597104) |

## What reviewers say

### Tiikr

[App page](https://appshunter.io/ios/app/tiikr-forms-and-workflows/id930781612)

Build, assign, and deploy digital forms and workflows with a drag-and-drop interface. Automate approvals and data collection, eliminating paper processes for enhanced efficiency and cost savings.

**Highlights:** Drag-and-drop form builder, Multi-step workflow automation, Cloud-based secure data storage, Instant submission and follow-up, Signature capture, Approvals management, Data integrations

**In-app purchases:** none


### Structural Lines

[App page](https://appshunter.io/ios/app/structural-lines/id1425830779)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Tiikr free?

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

### Is Structural Lines free?

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

### Do Tiikr or Structural Lines have ads?

Neither Tiikr nor Structural Lines shows ads.

### Which is updated more often, Tiikr or Structural Lines?

Tiikr ships an update every 4 weeks, and Structural Lines every 2 months. Most recently, Tiikr was updated on June 1, 2026 and Structural Lines on September 16, 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.*