# Fonn Construction vs Doer

The clearest difference is in-app purchases: Fonn Construction at none against Doer's 2. Fonn Construction also leads on iOS requirement (16.0 vs 18.6). Doer's advantage is update cadence (every 4 days vs fortnightly). On price, ads and device support there is nothing between them.

Both are free to download. Doer sells 2 in-app purchases, starting at $4.99 per year. Fonn Construction asks for nothing beyond the download.

Fonn Construction ships an update fortnightly, Doer every 4 days. The most recent releases landed on October 24, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Fonn Construction | Doer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/fonn-construction/id1229059264/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 4 days** |
| Monetization | Free | — |
| Size | 132 MB | 49 MB |
| Requires iOS | **16.0** | 18.6 |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Fonn AS](https://appshunter.io/developer/1229059263) | [KUTAY CALAPOGLU](https://appshunter.io/developer/1847420337) |

## What reviewers say

### Fonn Construction

[App page](https://appshunter.io/ios/app/fonn-construction/id1229059264)

Streamline construction projects with this field tool designed for contractors and project managers. It enhances efficiency, reduces errors, and facilitates clear communication among team members, all at a competitive cost.

**Highlights:** User-friendly interface, Unlimited users and subscriptions, Monitored sub-to-sub communication, Audit trails and liability protection, Real-time drawing access, Unlimited data storage, Photo and drawing markups

**Features:** Vision Pro support

**In-app purchases:** none


### Doer

[App page](https://appshunter.io/ios/app/doer-simple-to-do-list/id6794456133)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DOER Pro Annual | $4.99 | per year |
| DOER Pro Lifetime | $7.99 | one-time |


## Frequently asked questions

### Is Fonn Construction free?

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

### Is Doer free?

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

### Do Fonn Construction or Doer have ads?

Neither Fonn Construction nor Doer shows ads.

### Which is updated more often, Fonn Construction or Doer?

Fonn Construction ships an update fortnightly, and Doer every 4 days. Most recently, Fonn Construction was updated on October 24, 2026 and Doer on October 8, 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.*